$ 361,777

$ 404,275

70,328

29,427

11,266

$ 5,180

480

689

$ 2,091

Due from related parties

$ 13,068

13,890

Held for sale assets

47,045

$ 457,653

501,930

Long-term investments

11,319

5,498

Property and equipment, net

8,593

10,862

18,036

16,408

13,433

15,100

Prepayments for content copyrights

$ 21,896

23,237

1,532

Other long-term prepayments and receivables

$ 7,431

5,795

538,361

580,362

Accounts payable (including accounts payable of the consolidated variable interest entities and VIE's subsidiaries without recourse to the Company of USD 24,504 and USD 33,262 as of December 31, 2014 and 2015, respectively)

21,736

14,937

Deferred revenue and income, current portion (including deferred revenue and income, current portion of the consolidated variable interest entities and VIE's subsidiaries without recourse to the Company of USD 27,534 and USD 24,902 as of December 31, 2014 and 2015, respectively

25,113

27,745

Income tax payable (including income tax payable of the consolidated variable interest entities and VIE's subsidiaries without recourse to the Company of USD 2,554 and USD 2,407 as of December 31, 2014 and 2015, respectively)

2,470

2,554

Accrued liabilities and other payables (including accrued liabilities and other payables of the consolidated variable interest entities and VIE's subsidiaries without recourse to the Company of USD 85,701 and USD 131,312 as of December 31, 2014 and 2015, respectively)

27,379

30,333

Total current liabilities, excluding Held-for-sale for liabilities

$ 76,736

75,653

Held-for-sale liabilities

27,367

$ 76,736

103,020

Deferred revenue and income, non-current portion (including deferred revenue and income, non-current portion of the consolidated variable interest entities and VIE's subsidiaries without recourse to the Company of USD 6,452 and USD 4,751 as of December 31, 2014 and 2015, respectively)

^[1]

5,383

6,825

Deferred tax liability, non-current portion

6,378

8,552

4,337

4,137

Other long-term payable

846

807

$ 93,680

$ 123,341

Common shares (USD0.00025 par value, 1,000,000,000 shares authorized, 357,886,089 shares issued and 327,611,487 shares outstanding as at December 31, 2014; 368,877,209 shares issued and 339,319,115 shares outstanding as at December 31, 2015)

Equity

$ 85

$ 82

Additional paid-in-capital

458,270

446,202

Accumulated other comprehensive income/(loss)

(4,152)

5,894

Statutory reserves

5,132

Treasury shares (30,274,602 shares and 29,558,094 shares as at December 31, 2014 and 2015, respectively)

Retained earnings/(Accumulated deficits)

(12,593)

574

Total Xunlei Limited's shareholders' equity

446,749

457,891

Non-controlling interest

(2,068)

(870)

Total liabilities and shareholders' equity

$ 538,361

$ 580,362

[1]	As of December 31, 2015, the non-current portion included Membership subscription revenue of USD 719 thousand (2014: USD 1,120 thousand), Government grants of USD 4,032 thousand (2014: USD 4,863 thousand), and Reimbersement from the depositary of USD 632 thousand (2014: 842 thousand).

Consolidated Balance Sheets (Parenthetical) - USD ($) $ in Thousands	Dec. 31, 2015	Dec. 31, 2014
Consolidated Balance Sheets [Abstract]
Accounts payable, consolidated variable interest entities and VIE's subsidiaries without recourse	$ 33,262	$ 24,504
Due to related party, consolidated variable interest entities and VIE's subsidiaries without recourse	38	84
Deferred revenue and income, current portion of consolidated variable interest entities and VIE's subsidiaries without recourse	24,902	27,534
Income tax payable, consolidated variable interest entities and VIE's subsidiaries without recourse	2,407	2,554
Accrued liabilities and other payables, consolidated variable interest entities and VIE's subsidiaries without recourse	131,312	85,701
Deferred revenue, non-current portion of consolidated variable interest entities and VIE's subsidiaries without recourse	$ 4,751	$ 6,452
Common stock, par value	$ 0.00025	$ 0.00025
Common stock, shares authorized	1,000,000,000	1,000,000,000
Common stock, shares issued	368,877,209	357,886,089
Common stock, shares outstanding	339,319,115	327,611,487
Treasury stock, shares	29,558,094	30,274,602

Consolidated Statements of Comprehensive Income/(Loss) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Revenues, net of rebates and discounts	$ 129,996	$ 135,812	$ 122,031
Business taxes and surcharges	(361)	(1,878)	(3,904)
Net revenues	129,635	133,934	118,127
Cost of revenues	(60,034)	(55,755)	(50,258)
Gross profit	69,601	78,179	67,869
Operating expenses
Research and development expenses	(38,250)	(29,252)	(21,740)
Sales and marketing expenses	(15,042)	(13,527)	(9,848)
General and administrative expenses	(28,774)	(26,945)	(18,663)
Total operating expenses	(82,066)	(69,724)	(50,251)
Operating income / (loss)	(12,465)	8,455	17,618
Interest income	5,833	6,733	$ 1,189
Interest expense	(239)	(163)
Other income, net	3,627	13,966	$ 4,679
Share of income/(loss) from an equity investee	(12)	(259)	25
Income/(loss) from continuing operations before income tax	(3,256)	28,732	23,511
Income tax (expense)/benefit	886	(463)	(560)
Net income/(loss) from continuing operations	(2,370)	28,269	22,951
Discontinued operations
Loss from discontinued operations before income taxes	(10,048)	(20,330)	(13,779)
Income tax benefit / (expense)	(2,048)	1,923	1,207
Net loss from discontinued operations	(12,096)	(18,407)	(12,572)
Net income/(loss)	(14,466)	9,862	10,379
Less: Net (loss) attributable to the non-controlling interest	(1,299)	(950)	(283)
Net income/(loss) attributable to Xunlei Limited	$ (13,167)	$ 10,812	10,662
Net income attributable to shareholders
Allocation of net income to participating preferred shareholders			$ (4,094)
Acceleration of amortization of beneficial conversion feature		$ (49,346)
Deemed dividend to certain shareholders from repurchase of shares		(14,926)
Deemed dividend to preferred shareholders upon initial public offering		(32,807)
Net income/(loss) attributable to Xunlei Limited's common shareholders	$ (13,167)	(105,366)	$ 2,268
Net income/(loss)	(14,466)	9,862	10,379
Other comprehensive income / (loss): Foreign currency translation adjustment, net of tax	(9,945)	(114)	2,775
Comprehensive income/(loss)	(24,411)	9,748	13,154
Less: comprehensive loss attributable to non-controlling interest shareholders	(1,198)	(955)	(276)
Comprehensive income/(loss) attributable to Xunlei Limited	$ (23,213)	$ 10,703	$ 13,430
Basic net income/(loss) per share attributable to Xunlei Limited from continuing operations	$ 0.00	$ (0.45)	$ 0.24
Basic net loss per share attributable to Xunlei Limited from discontinued operations	$ (0.04)	$ (0.09)	$ (0.20)
Weighted average number of common shares outstanding-basic	335,987,595	194,711,227	61,447,372
Diluted net income/(loss) per share attributable to Xunlei Limited from continuing operations	$ 0.00	$ (0.45)	$ 0.18
Diluted net loss per share attributable to Xunlei Limited from discontinued operations	$ (0.04)	$ (0.09)	$ (0.17)
Weighted average number of common shares outstanding-diluted	335,987,595	194,711,227	76,065,898
Series D Preferred Stock [Member]
Net income attributable to shareholders
Deemed dividend to shareholder from its modification		$ (279)
Accretion to convertible redeemable preferred shares redemption value		(1,870)	$ (4,300)
Series C To One Series C [Member]
Net income attributable to shareholders
Contingent beneficial conversion feature		(57)
Series E Preferred Shares [Member]
Net income attributable to shareholders
Accretion to convertible redeemable preferred shares redemption value		(12,754)
Amortization of beneficial conversion feature		(4,139)
Acceleration of amortization of beneficial conversion feature		$ (49,346)

Consolidated statements of changes in shareholders' equity - USD ($) $ in Thousands	Total	Series C [Member]	Kingsoft Cloud Storage Business [Member]	Series E tranche 1 [Member]	Series E Tranche 2 [Member]	Series D Preferred Stock [Member]	Series E Preferred Shares [Member]	Initial Public Offering [Member]	Common shares [Member]	Common shares [Member] Initial Public Offering [Member]	Treasury stock [Member]	Additional paid-in capital [Member]	Additional paid-in capital [Member] Kingsoft Cloud Storage Business [Member]	Additional paid-in capital [Member] Series E tranche 1 [Member]	Additional paid-in capital [Member] Series E Tranche 2 [Member]	Additional paid-in capital [Member] Series D Preferred Stock [Member]	Additional paid-in capital [Member] Series E Preferred Shares [Member]	Additional paid-in capital [Member] Series C To One Series C [Member]	Additional paid-in capital [Member] Initial Public Offering [Member]	Retained earnings [Member]	Retained earnings [Member] Series D Preferred Stock [Member]	Retained earnings [Member] Series E Preferred Shares [Member]	Retained earnings [Member] Series C To One Series C [Member]	Statutory reserves [Member]	Accumulated other comprehensive income [Member]	Non-controlling interest [Member]	Convertible non-redeemable preferred shares [Member] Series C [Member]	Convertible non-redeemable preferred shares [Member] Series B [Member]	Convertible non-redeemable preferred shares [Member] Series A-1 Preferred Stock [Member]	Convertible non-redeemable preferred shares [Member] Series A [Member]	Convertible non-redeemable preferred shares [Member] Initial Public Offering [Member] Series C [Member]	Convertible non-redeemable preferred shares [Member] Initial Public Offering [Member] Series B [Member]	Convertible non-redeemable preferred shares [Member] Initial Public Offering [Member] Series A-1 Preferred Stock [Member]	Convertible non-redeemable preferred shares [Member] Initial Public Offering [Member] Series A [Member]
Beginning Balance, Amount at Dec. 31, 2012																											$ 1	$ 8	$ 9	$ 7
Beginning Balance, Amount at Dec. 31, 2012	$ 67,968								$ 15			$ 59,540								$ 2,011				$ 3,142	$ 3,235	$ 360
Beginning Balance, Shares at Dec. 31, 2012																											5,728,264	30,308,284	36,400,000	26,416,560
Beginning Balance, Shares at Dec. 31, 2012									61,447,372
Acceleration of amortization of beneficial conversion feature
Deemed dividend to preferred shareholders upon initial public offering
Issuance of common shares for share incentive plans, Amount											$ 2	(2)
Issuance of common shares for share incentive plans, Shares											9,073,732
Share-based compensation	$ 2,096											$ 2,096
Series D preferred shares accretion	(4,300)																			$ (4,300)
Statutory Reserve																				(1,336)				$ 1,336
Net income / (loss)	10,662																			10,662						$ (283)
Ending Balance, Amount at Dec. 31, 2013																											$ 1	$ 8	$ 9	$ 7
Ending Balance, Amount at Dec. 31, 2013	79,194								$ 15		$ 2	$ 61,634								$ 7,037				$ 4,478	$ 6,003	84
Ending Balance, Shares at Dec. 31, 2013																											5,728,264	30,308,284	36,400,000	26,416,560
Ending Balance, Shares at Dec. 31, 2013									61,447,372		9,073,732
Translation adjustments	2,768																								$ 2,768	$ 7
Accretion to convertible redeemable preferred shares redemption value						$ (1,870)	$ (12,754)									$ (717)	$ (10,229)				$ (1,153)	$ (2,525)
Amortisation of BCF							$ (4,139)										$ (3,206)					$ (933)
Deemed dividend of convertible preferred shares from their modifications						$ (279)															$ (279)
Contingent beneficial conversion feature																		$ 57					$ (57)
Repurchase of shares	(59,082)								$ (4)			$ (47,403)								$ (11,674)								$ (1)
Repurchase of shares, shares									(14,664,637)																			(3,756,065)	(591,451)	(477,180)
Acceleration of amortization of beneficial conversion feature	(49,346)											(49,346)
Deemed dividend to preferred shareholders upon initial public offering	(32,807)											(32,807)
Issuance of common shares for share incentive plans, Amount								$ 470,759		$ 71									$ 470,712												$ (1)	$ (7)	$ (9)	$ (7)
Issuance of common shares for share incentive plans, Shares										277,834,210																					(5,728,264)	(26,552,219)	(35,808,549)	(25,939,380)
IPO expenses	$ (4,216)											(4,216)
Issuance of common shares for share incentive plans, Amount											$ 5	(5)
Issuance of common shares for share incentive plans, Shares											24,195,412
Exercised share options, Amount	$ 295											295
Exercised share options, Shares	7,333,641								1,431,320		(1,431,320)
Vested restricted shares									1,563,222		(1,563,222)
Share-based compensation			$ 303										$ 303
Share-based compensation - others	$ 7,644											$ 7,644
Beneficial conversion feature				$ 52,377	$ 1,109									$ 52,377	$ 1,109
Statutory Reserve																				$ (654)				$ 654
Net income / (loss)	$ 10,812																			10,812						$ (949)
Ending Balance, Amount at Dec. 31, 2014
Ending Balance, Amount at Dec. 31, 2014	457,891								$ 82		$ 7	$ 446,202								$ 574				$ 5,132	$ 5,894	(870)
Ending Balance, Shares at Dec. 31, 2014
Ending Balance, Shares at Dec. 31, 2014									327,611,487		30,274,602
Translation adjustments	(109)																								$ (109)	$ (5)
Repurchase of shares	$ (1,287)											$ (1,287)
Repurchase of shares, shares									(1,068,095)		1,068,095
Acceleration of amortization of beneficial conversion feature
Deemed dividend to preferred shareholders upon initial public offering
Issuance of common shares for share incentive plans, Amount
Issuance of common shares for share incentive plans, Shares		96,024,567
Exercised share options, Shares	3,189,944
Issuance of common shares for the vesting of restricted shares and the exercise of share options											$ 3	(3)
Issuance of common shares for the vesting of restricted shares and the exercise of share options, shares											10,991,120
Issuance of common shares for exercised share options	$ 3,630								$ 2		$ (2)	3,630
Issuance of common shares for exercised share options, shares									9,092,265		(9,092,265)
Share-based compensation	$ 9,728											$ 9,728
Statutory Reserve
Restricted shares vested									$ 1		$ (1)
Restricted shares vested, shares									3,683,458		(3,683,458)
Net income / (loss)	$ (13,167)																			$ (13,167)						$ (1,299)
Ending Balance, Amount at Dec. 31, 2015
Ending Balance, Amount at Dec. 31, 2015	446,749								$ 85		$ 7	$ 458,270								$ (12,593)				$ 5,132	$ (4,152)
Ending Balance, Shares at Dec. 31, 2015
Ending Balance, Shares at Dec. 31, 2015									339,319,115		29,558,094															(2,068)
Translation adjustments	$ (10,046)																								$ (10,046)	$ 101

Consolidated Statement of Cash Flows - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Cash flows from operating activities
Net income/(loss)	$ (14,466)	$ 9,862	$ 10,379
Adjustments to reconcile net income/(loss) to net cash generated from operating activities
Depreciation of property and equipment	5,646	6,500	5,112
Amortization of intangible assets	12,149	38,741	38,314
Allowance for doubtful accounts	4	$ 1,767	$ 4,921
Loss on disposal of property and equipment	4
Gain from barter transactions	(409)	$ (4,428)	$ (2,059)
Share-based compensation	9,728	7,644	2,096
Decrease in fair value of warrants		(8,054)	(1,531)
Share of loss / (income) from equity investee	12	259	(25)
Investment income on short-term investments	(997)	$ (317)	(356)
Impairment of intangible assets			$ 808
Loss on exchange of warrants		$ 405
Deemed disposal gain on long-term investments	(702)	(449)
Interest expense accrued on long-term payable	239	163
Deferred taxes	873	(1,856)	$ (822)
Deferred government grants	(1,969)	(2,059)	(1,284)
Changes in operating assets and liabilities:
Accounts receivable	1,395	4,699	13,655
Prepayments and other assets	3,815	(9,180)	(333)
Due from/to related parties	(70)	(168)	(96)
Accounts payable	301	$ 2,569	$ 5,924
Inventories	(526)
Deferred revenue	(294)	$ (2,643)	$ 12,630
Income tax payable	153	(5)	116
Accrued liabilities and other payables	(1,122)	4,752	(1,916)
Net cash generated from operating activities	13,764	48,202	85,533
Cash flows from investing activities
Acquisition of property and equipment	(4,931)	(7,770)	(7,372)
Purchase of short-term investments	(222,157)	(330,471)	(246,153)
Proceeds from disposal of short-term investments	175,513	$ 341,792	$ 213,506
Proceeds from disposal of fixed assets	25
Proceeds from disposal of Kankan	16,687
Purchase of intangible assets	(11,894)	$ (38,056)	$ (36,005)
Acquisition of long-term investments	(8,330)	(2,359)	$ (1,390)
Acquisition of Kingsoft Cloud Storage business		(33,000)
Loans (to)/repayment of loan from employees	105	(767)	$ (856)
Advance to or repayment of advance from a shareholder		85	(82)
Net cash used in investing activities	(54,982)	(70,546)	$ (78,352)
Cash flows from financing activities
Repurchase of shares	$ (1,287)	(69,303)
Proceeds from initial public offering		93,881
Payment of initial public offering expenses		(3,504)
Prepayment for share repurchase plan	$ 288	(1,000)
Governments grants received	1,055	856	$ 2,487
Proceeds from exercise of vested share options	$ 4,974	1,523
Initial public offering expenses reimbursement received		1,158
Net cash generated from financing activities	$ 5,030	333,268	$ 2,487
Net increase/(decrease) in cash and cash equivalents	(36,188)	310,924	9,668
Cash and cash equivalents at beginning of year	404,275	93,906	81,906
Effect of exchange rates on cash and cash equivalents	(6,310)	(555)	2,332
Cash and cash equivalents at end of year	$ 361,777	$ 404,275	$ 93,906
Supplemental disclosure of cash flow information
Interests paid
Income tax paid	$ 82	$ 241
Non cash investing and financing activities
Acquisition of property and equipment in form of other payables	$ 4,468	240	$ 4,157
Initial public offering expenses in form of other payables		712
Purchase of intangible assets in form of accounts payable	$ 62	21,860	$ 25,695
Acquisition of intangible assets in form of barter transactions		$ 4,030	$ 4,058
Beneficial Conversion Feature of convertible preferred shares from their modifications
Deemed contribution from Series C preferred shareholders
Deemed dividend to certain shareholders from repurchase of shares		$ 14,926
Acceleration of amortization of beneficial conversion feature		49,346
Deemed dividend to preferred shareholders upon initial public offering		32,807
Series D Preferred Stock [Member]
Adjustments to reconcile net income/(loss) to net cash generated from operating activities
Loss on exchange of warrants	$ (405)
Non cash investing and financing activities
Deemed dividend to preferred shareholders		279
Accretion to preferred shares redemption value		1,870	$ 4,300
Series E Preferred Shares [Member]
Cash flows from financing activities
Issuance of preferred shares		275,314
Issuance of warrants		34,686
Payment of Series E financing expenses		(343)
Non cash investing and financing activities
Accretion to preferred shares redemption value		12,754
Amortization of beneficial conversion feature		4,139
Acceleration of amortization of beneficial conversion feature		$ 49,346
Series C [Member]
Non cash investing and financing activities
Beneficial Conversion Feature of convertible preferred shares from their modifications
Series C To One Series C [Member]
Non cash investing and financing activities
Contingent beneficial conversion feature		$ 57

Organization and nature of operations

12 Months Ended

Dec. 31, 2015

Organization and nature of operations [Abstract]

Organization and nature of operations

1.	Organization and nature of operations

Xunlei Limited, previously known as Giganology Limited, (the “Company”) was incorporated under the law of the Cayman Islands (“Cayman”) as a limited liability company on February 3, 2005. The accompanying consolidated financial statements include the financial statements of the Company, its subsidiaries, its variable interest entity (“VIE”) and the VIE's subsidiaries (collectively referred to as the “Group”) as follows:


Name of entities	Place of incorporation	Date of incorporation	Relationship	% of direct or indirect economic ownership		Principal activities

Shenzhen Xunlei Networking Technologies, Co., Ltd (“Shenzhen Xunlei”).	China	January 2003	VIE	100	%	Development of software, provision of online and related advertising, membership subscription and online game services; as well as sales of software licenses

Giganology (Shenzhen) Co. Ltd (“Giganology Shenzhen”)..	China	June 2005	Subsidiary	100	%	Development of computer software and provision of information technology services to related companies

Shenzhen Fengdong Networking Technologies, Co., Ltd (“Fengdong”)	China	December 2005	VIE's subsidiary	100	%	Development of software for related companies

Shenzhen Xunlei Kankan Information Technologies Co., Ltd (formerly known as “155 Networking (Shenzhen) Co., Ltd”).	China	August 2008	VIE's subsidiary	100	%	Development of software for related companies (note a)

Xunlei Software (Beijing) Co., Ltd (“Xunlei Beijing”).	China	June 2009	VIE's subsidiary	100	%	Development of software for related companies

Xunlei Software (Shenzhen) Co., Ltd (“Xunlei Software”).	China	January 2010	VIE's subsidiary	100	%	Provision of software technology development for related companies


Xunlei Software (Nanjing) Co., Ltd (“Xunlei Nanjing”)	China	January 2010	VIE's subsidiary	100	%	Development of computer software and online games for related companies and provision of advertising services (note b)

Xunlei Games Development (Shenzhen) Co., Ltd.	China	February 2010	VIE's subsidiary	70	%	Development of online game and computer software for related companies and provision of advertising services

Xunlei Network Technologies Limited (“Xunlei BVI”)	British Virgin Islands	February 2011	Subsidiary	100	%	Holding company

Xunlei Network Technologies Limited (“Xunlei HK”)	Hongkong	March 2011	Subsidiary	100	%	Development computer software of related companies and provision of advertising services

Xunlei Computer (Shenzhen) Co., Ltd (“Xunlei Computer”)	China	November 2011	Subsidiary	100	%	Development of computer software and provision of information technology services to related companies

Shenzhen Onething Technologies Co., Ltd (“One Thing”)	China	September 2013	VIE's subsidiary	100	%	Development of computer software and provision of information technology services to related companies

Wangxin Century Technologies (Beijing) Co., Ltd ("Beijin Wangxin")	China	October 2015	VIE's subsidiary	100	%	Development of computer software and provision of information technology services

Note a:	Xunlei Kankan was disposed in 2015, see note 3 for further discussion.

Note b:	In January 2011, the equity owners of Xunlei Nanjing resolved to liquidate the entity. In May 2012, Xunlei Nanjing was approved to be de-registered by the relevant government authorities. There was no significant financial impact to the consolidated financial statements of the Group.

Note c:

The English names of the PRC companies represent management's translation of the Chinese names of these companies as these companies have not adopted formal English names.

The Group engages primarily in the provision of online advertising services on its websites, premium downloading services to its members and online game platforms for game developers and users.

To comply with PRC laws and regulations that prohibit or restrict foreign ownership of companies that provide online advertising services, operate online games, and hold Internet Content Provider (‘‘ICP'') license, the company conducts its business through Shenzhen Xunlei, its consolidated VIE.

Through the various agreements enacted among the Company, Giganology Shenzhen, a wholly owned subsidiary of the Company, Shenzhen Xunlei and legal shareholders of Shenzhen Xunlei (the “Restructuring”), the Company received all of the economic benefits and residual interest and absorbed all of the risks and expected losses from Shenzhen Xunlei.

Details of certain key agreements with the VIE are as follows:

—Loan Agreements between Giganology Shenzhen and the shareholders of Shenzhen Xunlei—Giganology Shenzhen provided interest-free loans of RMB 9 million to the shareholders of Shenzhen Xunlei for them to make contributions as registered capital into Shenzhen Xunlei. The term of these agreements last for two years from the date it was signed, and will be automatically extended afterwards on a yearly basis until each shareholder of Shenzhen Xunlei has repaid the loans in its entirety in accordance with the loan agreement. The shareholders would not be allowed to transfer their interests in Shenzhen Xunlei without prior consent of Giganology Shenzhen. According to the loan agreements, the loans can only be repaid in the form of common shares of Shenzhen Xunlei. At any time during the term of the loan agreements, Giganology Shenzhen may, at their sole discretion, requires any of the shareholders of Shenzhen Xunlei to repay all or any portion of their outstanding loan under the agreement.

Under a separate loan agreement between Giganology Shenzhen and Mr. Sean Shenglong Zou as a shareholder of Shenzhen Xunlei, Giganology Shenzhen made an additional interest-free loan of RMB20 million to Mr. Sean Shenglong Zou, the entire amount of which was contributed to the registered capital of Shenzhen Xunlei, increasing the registered capital of Shenzhen Xunlei to RMB30 million. The term of this agreement last for two years from the date it was signed, and will be automatically extended afterwards on a yearly basis until Mr. Zou has repaid the loan in its entirety in accordance with the loan agreement. This loan will be deemed to be repaid when all equity interest held by the shareholders in Shenzhen Xunlei has been transferred to Giganology Shenzhen or its designated parties. At any time during the term of this loan agreement, the Company may, at their sole discretion, require all or any portion of the outstanding loan under the agreement to be repaid.

—Business Operation Agreements between Giganology Shenzhen and Shenzhen Xunlei—Under these agreements, Giganology Shenzhen has the rights to direct the operating activities of Shenzhen Xunlei, including the appointment of senior management. The shareholders of Shenzhen Xunlei also transferred all their shareholders' rights to Giganology Shenzhen. The term of this agreement will expire in 2016 and may be extended with Giganology Shenzhen's confirmation prior to the expiration date. For instance, in May 2011, Shenzhen Xunlei sought and obtained consent from Giganology Shenzhen and the Company to increase its registered capital by RMB20 million and to revise its articles of association accordingly. The term of this agreement will expire on November 15, 2016, and will be renewed before the expiration according to the requirement of the WFOE (i.e. primary beneficiary of the VIE), as contemplated in the original terms of the VIE arrangements.

—Equity Pledge Agreement between Giganology Shenzhen and the shareholders of Shenzhen Xunlei—Under this agreement, the shareholders of Shenzhen Xunlei pledged all of their equity interests in Shenzhen Xunlei to Giganology Shenzhen. If Shenzhen Xunlei and/or its shareholders breach their contractual obligations under this agreement, Giganology Shenzhen, as pledgee, will be entitled to certain rights, including the right to sell the pledged equity interests.

—Power of Attorney—Each shareholder of Shenzhen Xunlei appointed Giganology Shenzhen as its attorney-in-fact to exercise their shareholders' rights in Shenzhen Xunlei, including shareholders' voting rights. Each power of attorney will remain in force for 10 years unless the business operation agreement among Giganology Shenzhen, Shenzhen Xunlei and the shareholders of Shenzhen Xunlei is terminated in advance. This period may be extended at Giganology Shenzhen's discretion.

—Service Agreements between Giganology Shenzhen and Shenzhen Xunlei—Under various service agreements, Giganology Shenzhen will provide services including technical support, training, as well as consulting services to Shenzhen Xunlei in exchange for a service fee. These service agreements include the Exclusive Technology Support and Services Agreement, the Exclusive Technology Consulting and Training Agreement and the Software and Proprietary Technology License Contract. Giganology Shenzhen is entitled to service fees equal to 20%, 20% and 40% of the pre-tax operating profit of Shenzhen Xunlei according to the terms and provisions of these agreements, respectively (in aggregate 80% of pre-tax operating profit of Shenzhen Xunlei). In addition, these agreements also allow both parties to review and adjust the above mentioned percentage every six months according to the business operation and income of Shenzhen Xunlei so as to enable Giganology Shenzhen to extract substantially all the after tax operating profit of Shenzhen Xunlei. The amount of service fees payable from Shenzhen Xunlei to Giganology Shenzhen for the years ended December 31, 2013, 2014 and 2015 was USD nil, USD 1,228 thousand and USD 1,235 thousand, respectively.

For the Exclusive Technology Support and Services Agreement and the Exclusive Technology Consulting and Training Agreement, the term of these agreements will expire in 2025 and may be extended with Giganology Shenzhen's written confirmation prior to the expiration date. Giganology Shenzhen is entitled to terminate the agreement at any time by providing 30 days' prior written notice to Shenzhen Xunlei.

For the Proprietary Technology License Contract, the term of this contract will expire in 2022 and may be extended with Giganology Shenzhen's written confirmation prior to the expiration date. Giganology Shenzhen grants Shenzhen Xunlei a non-exclusive and non-transferable right to use Giganology Shenzhen's proprietary technology. Shenzhen Xunlei can only use the proprietary technology to conduct business according to its authorized business scope. Giganology Shenzhen or its designated representative(s) owns the rights to any new technology developed due to implementation of this contract.

—Intellectual Properties Purchase Option Agreement between Giganology Shenzhen and Shenzhen Xunlei. Giganology Shenzhen has an option to acquire Shenzhen Xunlei's intellectual properties at the lowest price permissible by the then-applicable PRC laws and regulation. The term of this contract will expire in 2022 and may be automatically extended for an additional 10 years at Giganology Shenzhen's discretion.

—Call Option Agreement—Giganology Shenzhen has an option to acquire all of the outstanding shares of Shenzhen Xunlei at a purchase price equal to RMB 1 or the lowest price permissible by the then-applicable PRC laws and regulation. The term of the agreement will expire in 2022 and may be extended at Giganology Shenzhen's discretion.

As a result of these agreements (collectively defined as “Structured Service Contracts”), Giganology Shenzhen can exercise effective control over Shenzhen Xunlei, receives all of the economic benefits and residual interest and absorbs all of the risks and expected losses from Shenzhen Xunlei as if it were the sole shareholder, and has an exclusive option to purchase all of the equity interest in Shenzhen Xunlei at a minimal price. Therefore, Giganology Shenzhen is considered the primary beneficiary of Shenzhen Xunlei and accordingly Shenzhen Xunlei's results of operations, assets and liabilities have been consolidated in the Company's financial statements.

On December 24, 2013, for purposes of developing the Group's computer software and information technology capability, Shenzhen Xunlei and Xunlei Computer entered into a technology development and software licenses framework agreement. The term of the agreement is two years from the date of its execution. Under this framework agreement, Xunlei Computer provides Shenzhen Xunlei with technology development services according to Shenzhen Xunlei's business needs. Any new intellectual property resulting from the technology development services is owned by Xunlei Computer, and cannot be substituted or sub-licensed to any third party by Shenzhen Xunlei without the prior written consent of Xunlei Computer. The framework agreement signed between Shenzhen Xunlei and Xunlei Computers does not have an impact on the Structured Services Contracts with Shenzhen Xunlei.

VIE-Related Risks

It is possible that the Group's operation of certain of its operations and businesses through VIEs could be found by PRC authorities to be in violation of PRC law and regulations prohibiting or restricting foreign ownership of companies that engage in such operations and businesses. While the Group's management considers the possibility of such a finding by PRC regulatory authorities under current law and regulations to be remote, on January 19, 2015, the Ministry of Commerce of the PRC, or (the “MOFCOM”) released on its Website for public comment a proposed PRC law (the “Draft FIE Law”) that appears to include VIEs within the scope of entities that could be considered to be foreign invested enterprises (or “FIEs”) that would be subject to restrictions under existing PRC law on foreign investment in certain categories of industry. Specifically, the Draft FIE Law introduces the concept of “actual control” for determining whether an entity is considered to be an FIE. In addition to control through direct or indirect ownership or equity, the Draft FIE Law includes control through contractual arrangements within the definition of “actual control.” If the Draft FIE Law is passed by the People's Congress of the PRC and goes into effect in its current form, these provisions regarding control through contractual arrangements could be construed to reach the Group's VIE arrangements, and as a result the Group's VIEs could become explicitly subject to the current restrictions on foreign investment in certain categories of industry. The Draft FIE Law includes provisions that would exempt from the definition of foreign invested enterprises entities where the ultimate controlling shareholders are either entities organized under PRC law or individuals who are PRC citizens. The Draft FIE Law does not make clear how “control” would be determined for such purpose, and is silent as to what type of enforcement action might be taken against existing VIEs that operate in restricted industries and are not controlled by entities organized under PRC law or individuals who are PRC citizens. If a finding were made by PRC authorities, under existing law and regulations or under the Draft FIE Law if it becomes effective, that the Group's operation of certain of its operations and businesses through VIEs, regulatory authorities with jurisdiction over the licensing and operation of such operations and businesses would have broad discretion in dealing with such a violation, including levying fines, confiscating the Group's income, revoking the business or operating licenses of the affected businesses, requiring the Group to restructure its ownership structure or operations, or requiring the Group to discontinue all or any portion of its operations. Any of these actions could cause significant disruption to the Group's business operations, and have a severe adverse impact on the Group's cash flows, financial position and operating performance.

In addition, it is possible that the contracts among the Group, the Group's VIEs and shareholders of its VIEs would not be enforceable in China if PRC government authorities or courts were to find that such contracts contravene PRC law and regulations or are otherwise not enforceable for public policy reasons. In the event that the Group was unable to enforce these contractual arrangements, the Group would not be able to exert effective control over the affected VIEs. Consequently, such VIE's results of operations, assets and liabilities would not be included in the Group's consolidated financial statements. If such were the case, the Group's cash flows, financial position and operating performance would be severely adversely affected. The Group's contractual arrangements with respect to its consolidated VIEs are approved and in place. The Group's management believes that such contracts are enforceable, and considers the possibility remote that PRC regulatory authorities with jurisdiction over the Group's operations and contractual relationships would find the contracts to be unenforceable.

Initial public offering

The Company completed its initial public offering (“IPO”) on June 24, 2014 on the NASDAQ Global Market and the underwriters subsequently exercised their over-allotment option on June 27, 2014. The Company issued and sold a total of 8,412,250 American Depositary Shares (“ADSs”) pursuant to these transactions. Each ADS represents five common shares. The net proceeds received by the Company, after deducting commissions and offering expenses, amounted to approximately US$ 89,665 thousand. Upon the completion of the IPO, all of the Company's outstanding preferred shares were converted into common shares immediately as of the same date.

Summary of significant accounting policies

12 Months Ended

Dec. 31, 2015

Summary of significant accounting policies [Abstract]

Summary of significant accounting policies

2.	Summary of significant accounting policies

(a)

Basis of presentation and use of estimates

The accompanying consolidated financial statements have been prepared in accordance with accounting principles generally accepted in the United States of America (‘‘U.S. GAAP''). Significant accounting policies followed by the Group in the preparation of the accompanying consolidated financial statements are summarized below.

The Restructuring was accounted for at historical costs. The assets and liabilities of Shenzhen Xunlei are consolidated in the Company's financial statements at carryover basis.

The preparation of financial statements in conformity with U.S. GAAP requires management to make estimates and assumptions that affect the amounts reported in the accompanying consolidated financial statements and related disclosures. Actual results could differ materially from these estimates. Significant accounting estimates reflected in the Group's consolidated financial statements mainly include the useful lives of property and equipment, allowance for doubtful accounts, valuation allowance of deferred tax assets, sales rebate to advertising agencies, amortization period of online game revenue, amortization of content copyrights, fair value of content copyrights exchange, impairment assessment of goodwill and impairment assessment of long-lived assets. In addition, the Group uses assumptions in a valuation model to estimate the fair value of share options granted, warrants issued and underlying common shares.

Management bases the estimates on historical experience and on various other assumptions that are believed to be reasonable, the results of which form the basis for making judgments about the carrying values of assets and liabilities. Actual results could differ from these estimates.

(b)

Consolidation

The consolidated financial statements include the financial statements of the Company, its subsidiaries, VIE for which the Company is the primary beneficiary and its subsidiaries. All significant transactions and balances among the Company, its subsidiaries, VIE and its subsidiaries have been eliminated upon consolidation.

A subsidiary is an entity in which the Company, directly or indirectly, controls more than one-half of the voting power, or has the power to appoint or remove the majority of the members of the board of directors to cast majority of votes at meetings of the board of directors or to govern the financial and operating policies of the investee under a statute or agreement among the shareholders or equity holders.

An entity is considered to be a VIE if the entity's equity holders do not have the characteristics of a controlling financial interest or do not have sufficient equity at risk for the entity to finance its activities without additional subordinated financial support from other parties.

The Group consolidates entities for which the Company is the primary beneficiary if the entity's other equity holders do not have the characteristics of a controlling financial interest or do not have sufficient equity at risk for the entity to finance its activities without additional subordinated financial support from other parties.

In determining whether the Company or its subsidiary is the primary beneficiary of a VIE, the Company considered whether it has the power to direct activities that are significant to the VIE's economic performance, including the power to appoint senior management, right to direct company strategy, power to approve capital expenditure budgets, and power to establish and manage ordinary business operation procedures and internal regulations and systems.

Management has evaluated the contractual arrangements among Giganology Shenzhen, Shenzhen Xunlei and its shareholders and concluded that Giganology Shenzhen receives all of the economic benefits and absorbs all of the expected losses from Shenzhen Xunlei and has the power to direct the aforementioned activities that are significant to Shenzhen Xunlei's economic performance, and is the primary beneficiary of Shenzhen Xunlei. Therefore, Shenzhen Xunlei and its subsidiaries' results of operation, assets and liabilities have been included in the Group's consolidated financial statements. Management monitors the regulatory risk associated with these contractual arrangements. See Note 25 for further discussion.

Non-controlling interests represent the portion of the net assets of a subsidiary attributable to interests that are not owned by the Company. The non-controlling interests are presented in the consolidated balance sheets, separately from equity attributable to the shareholders of the Company. Non-controlling interests in the results of the Group is presented on the face of the consolidated statements of comprehensive income as an allocation of the total income or loss for the year/period between non-controlling shareholders and the shareholders of the Company.

(c)

Discontinued operations

When disposals that represent a strategic shift that has (or will have) a major effect on the entity's results and operations would qualify as discontinued operations. Discontinued operations are reported when a component of an entity comprising operations and cash flows that can be clearly distinguished, operationally and for financial reporting purposes, from the rest of the entity is classified as held for disposal or has been disposed of, if the component either (1) represents a strategic shift or (2) have a major impact on an entity's financial results and operations. Examples include a disposal of a major geographical location, line of business, or other significant part of the entity, or disposal of a major equity method investment. In the consolidated income statement, result from discontinued operations is reported separately from the income and expenses from continuing operations and prior periods are presented on a comparative basis. Cash flows for discontinuing operations are presented separately in note 3. In order to present the financial effects of the continuing operations and discontinued operations, revenues and expenses arising from intra-group transactions are eliminated except for those revenues and expenses that are considered to continue after the disposal of the discontinued operations.

Non-current assets or disposal groups are classified as assets held for sale when the carrying amount is to be recovered principally through a sale transaction rather than through continuing use. For this to be the case, the asset or disposal group must be available for immediate sale in its present condition subject only to terms that are usual and customary for sales of such assets or disposal groups and the sale must be highly probable. Non-current assets classified as held for sale and disposal groups are measured at the lower of their carrying or fair value less costs to sell.

(d)

Foreign currency translation

The Company's reporting and functional currency is the United States Dollar (‘‘USD''). Xunlei BVI and Xunlei HK's functional currency is the USD. The functional currency of other subsidiaries, VIE and its subsidiaries located in the PRC is the Renminbi (‘‘RMB''), which is their respective local currency. Transactions denominated in foreign currencies are remeasured into the functional currency at the exchange rates prevailing on the transaction dates. Financial assets and liabilities denominated in foreign currencies are remeasured into the functional currency using the applicable exchange rates prevailing at the balance sheet date. The resulting exchange gains and losses from foreign currency transactions are included in other income (loss) within the consolidated statements of comprehensive income.

The Company uses the monthly average exchange rate for the year and the exchange rates at the balance sheet date to translate the operating results and financial position, respectively, of its subsidiaries whose functional currency is other than the USD. The resulting translation differences are recorded in cumulated translation adjustments, a component of shareholders' equity.

The exchange rate used is released by Chinese State Administration of Foreign Exchange.

(e)

Cash and cash equivalents

Cash and cash equivalents include cash on hand, cash in bank and time deposits placed with banks or other financial institutions, which have original maturities of three months or less and are readily convertible to known amounts of cash.

(f)

Short-term investments

Short-term investments include deposits placed with banks with original maturities of more than three months but less than one year and investments in financial instruments with a variable interest rate indexed to the performance of underlying assets. In accordance with ASC 825 Financial Instruments, for investments in financial instruments with a variable interest rate indexed to performance of underlying assets, the Group elected the fair value method at the date of initial recognition and carried these investments subsequently at fair value. Changes in the fair value are reflected in the consolidated statements of comprehensive income. Interest generated from short term investments are recorded when interest payments are received at the maturity date. It is recorded as “other income” on the statement of comprehensive income and measured based on the actual amount of interest the Group received.

(g)

Fair value of financial instruments

The Group's financial instruments consist principally of cash and cash equivalents, short-term investments, accounts receivable, other receivables, amounts due from/(to) related parties, accounts payable, other payables and warrants liabilities. The carrying value of these balances, with the exception of short-term investments (see note 2 (e)), approximates their fair value due to the current and short term nature of these balances.

(h)

Accounts receivable, net

Accounts receivable are presented net of allowance for doubtful accounts. The Group evaluates the creditworthiness of each customer at the time when services are rendered and continuously monitor the recoverability of the accounts receivable.

The Group uses specific identification method in providing for bad debts when facts and circumstances indicate that collection is doubtful and a loss is probable and estimable. If the financial conditions of its customers were to deteriorate, resulting in an impairment of their ability to make payments, additional allowances might be required. The allowance for doubtful accounts is based on the best facts available and is re-evaluated and adjusted on a regular basis as additional information is received.

Some of the factors that the Group considers in determining whether a bad debt allowance is recorded on an individual customer are:

1) the customer's past payment history and whether it fails to comply with its payment schedule;

2) whether the customer is in financial difficulty due to economic or legal factors;

3) a significant dispute with the customer has occurred;

4) the objective evidence which indicates non-collectability of the accounts receivable.

The allowances provided for Accounts Receivable from continuing operations as of December 31, 2014 and 2015 were USD 0.1 million and USD 0.1 million, respectively.

If the Group determines that an allowance is needed for a customer, the Group will discontinue business with them unless they start to resume payment. The accounts receivable is written-off when the Group ceases pursuing collection. Any changes in the estimates may cause the Group's operating results to fluctuate.

(i)

Inventories

Inventories are stated at the lower of cost or net realizable value. Cost is determined using actual cost on a weighted average basis. Net realizable value is the amount that can be realized from the sale of the inventory in the inventory in the normal course of business after allowing for the costs of realization.

An allowance is recorded for excess inventory and obsolescence based on the lower of cost or net realizable value.

(j)

Long-term investments

The Group holds investments in privately held companies. The Group accounts for these investments over which it has significant influence but does not own a majority equity interest or otherwise control using the equity method of accounting. For investments in an investee over which the Group does not have significant influence and of which the investee has no readily determinable fair value, the Group carries the investment using the cost method. Under the cost method, the investment is measured initially at cost. The investment carried at cost should recognize income when dividends are received from the distribution of the investee's earnings. The Group assesses its long-term investments for other-than-temporary impairment by considering factors including, but not limited to, current economic and market conditions, operating performance of the companies, including current earnings trends and undiscounted cash flows, and other company-specific information. The fair value determination, particularly for investments in privately-held companies, requires significant judgment to determine appropriate estimates and assumptions. Changes in these estimates and assumptions could affect the calculation of the fair value of the investments and determination of whether any identified impairment is other-than-temporary. During the years ended December 31, 2013 and 2014, the Group did not impair any of its long-term investments. In 2015, the Group recognised an impairment of USD 0.8 million.

(k)

Property and equipment

Property and equipment are stated at historical cost less accumulated depreciation and impairment loss, if any. Depreciation is calculated using the straight-line method over their estimated useful lives. Residual rate is determined based on the economic value of the asset at the end of the estimated useful life as a percentage of the original cost.


	Estimated useful lives		Residual rate
Servers and network equipment		5 years		5	%
Computer equipment		5 years		5	%
Furniture, fittings and office equipment		5 years		5	%
Motor vehicles		5 years		5	%
Leasehold improvements		shorter of lease term or 3 years		—

Repair and maintenance costs are expensed as incurred. Expenditures that substantially increase an asset's useful life are capitalized. Upon sale or disposition, gain or loss on the disposal of property and equipment is the difference between the net sales proceeds and the carrying amount of the relevant assets and is recognized in the consolidated statements of operations. The cost and related accumulated depreciation are removed from the financial statements.

(l)

Goodwill

Goodwill represents the excess of the purchase price over the amounts assigned to the fair value of the assets acquired and the liabilities assumed of an acquired business.

(m)

Impairment of goodwill

Impairment of goodwill assessment is performed on at least an annual basis on December 31 or whenever events or changes in circumstances indicate that the carrying value of the asset may not be recoverable. According to ASC 350-20-35, an entity may assess qualitative factors to determine whether it is more likely than not (that is, a likelihood of more than 50 percent) that the fair value of a reporting unit is less than its carrying amount, including goodwill. But the Group selects proceed directly to perform a two-step goodwill impairment test. The first step compares the fair values of a reporting unit to its carrying amount, including goodwill. If the fair value of a reporting unit exceeds its carrying amount, goodwill is not considered impaired and the second step will not be required. If the carrying amount of a reporting unit exceeds its fair value, the second step compares the implied fair value of the affected reporting unit's goodwill to the carrying value of that goodwill. The implied fair value of goodwill is determined in a manner similar to accounting for a business combination with the allocation of the assessed fair value determined in the first step to the assets and liabilities of the reporting unit. The excess of the fair value of the reporting unit over the amounts assigned to the assets and liabilities is the implied fair value of goodwill. This allocation process is only performed for purposes of evaluating goodwill impairment and does not result in an entry to adjust the value of any assets or liabilities. An impairment loss is recognized for any excess in the carrying value of goodwill over the implied fair value of goodwill. The judgment in estimating the fair value of a reporting unit includes estimating future cash flows, determining appropriate discount rates and making other assumptions. Changes in these estimates and assumptions could materially affect the determination of the fair value of a reporting unit. No goodwill impairment losses were recognized for the year ended December 31, 2015.

(n)

Intangible assets

I)	Content copyrights

Licensed copyrights of movies, TV series and variety shows (collectively “Content Copyrights”) are capitalized when 1) the cost of the content is known 2) the content has been accepted by the Group in accordance with the conditions of the license agreement and 3) the content is available for its first showing on the Group's website. Content Copyrights are carried at cost less accumulated amortization and impairment loss, if any.

The Group has two types of Content Copyrights, 1) non- exclusive Content Copyrights and 2) exclusive Content Copyrights. With non-exclusive Content Copyrights, the Group has the right to broadcast the contents on its own websites. While, with exclusive Content Copyrights, besides the broadcasting right, the Group also has the right to sub-license these exclusive Content Copyrights to third parties.

For non-exclusive Content Copyrights, which only generates primarily indirect cash flows, the amortization method is based on the analysis of historical viewership consumption patterns. The Group determines consumption patterns by tracking the number of viewers watching the content throughout its life cycle. This information is then aggregated to come up with a viewership trend that can support an appropriate method to amortize non-exclusive Content Copyrights. The Group generally categorizes its contents in the Xunlei Kankan website into three broad categories, namely movies; TV series; and variety shows and others, which include reality shows, talent shows, talk shows and entertainment news. Prior to April 1, 2011, the Group concluded there was insufficient historical viewership data to support a demonstrative pattern in viewership of the Group's non-exclusive Content Copyrights. Therefore, the Group has determined that a straight line method of amortization over the estimated useful lives of the related non-exclusive Content Copyright provides the right level of expenses attribution. Effective April 1, 2011, based on an accumulation of data gathered on historical viewing patterns of the non-exclusive Content Copyrights, the Group revised the method to amortize new release of non-exclusive Content Copyrights over the shorter of estimated useful lives or their respective licensing periods using an accelerated method based on consumption patterns. Estimates of the consumption patterns for these non-exclusive Content Copyrights are reviewed periodically and revised, if necessary.

Exclusive Content Copyrights generate both direct and indirect cash flows. For the portion of exclusive Content Copyrights that generate indirect cash flows, the Group uses the amortization method based on the analysis of historical viewership consumption patterns, which is the same with that of non-exclusive Content Copyright as discussed above.

For the portion of exclusive Content Copyrights that generates direct cash flows, the Group amortizes the purchase costs using an individual-film-forecast-computation method, which amortizes such costs based on the ratio of sub-licensing revenue and barter transaction gain (details described in Note 2(r)) generated for the current period to the total ultimate direct revenue estimated to be generated by the exclusive Content Copyrights for their whole license period or estimated useful lives. The Group revisits the forecast at each quarter or year end and makes adjustment, when appropriate.

II)	Other intangible assets

Other intangible assets, which include computer software, internal use software development costs, online game licenses, domain names, land use right, trademarks, technology (including right-to-use) and non-compete agreement, are carried at cost less accumulated amortization and impairment loss, if any. Exclusive game licenses are amortized using the straight-line method over their licensing period of three years. Computer software, internal use software and domain name are amortized using the straight-line method over their estimated useful life of five years. Land use right is amortized using the straight-line method over their estimated useful life of thirty years.

(o)

Impairment of long-lived assets

The Group evaluates the program usefulness of non-exclusive Content Copyrights and exclusive Content Copyrights pursuant to the guidance in ASC 920-350 Intangible—Goodwill and Other: Recognition, which provides that such rights be reported at the lower of unamortized cost or estimated net realizable value.

For non-exclusive Content Copyrights which only generate indirect cash flows, the Group evaluates the net realizable value of the content library by its three content categories (i.e. movies, TV series, variety shows and others). If management's expectations of programming usefulness, which represents the expected revenues and related net cash flows derived from the contents, are revised downward, they assess whether it is necessary to write down the unamortized costs to estimated net realizable value. The Group evaluates programming usefulness by category on an annual basis by comparing the unamortized cost to the estimated net realizable value. On a quarterly basis, the Group also monitors whether there are indicators of changes in their expected usage of program materials.

The Group estimates net realizable value using expected net cash flows of the content based on expected future levels of advertising revenues. Such estimates consider historical amounts and anticipated levels of demand. Expected future revenues are reduced by estimated direct costs to provide access to the website and generate the related revenue, including bandwidth costs and server costs. For purposes of estimating revenues for each category of content, the Group considers both expected future advertising revenues sold based on number of impressions delivered as well as advertising sold based on the period of time that it is displayed.

For exclusive Content Copyrights that generate both direct and indirect cash flows, the Group evaluates the net realizable value of the Group's licensed copyright on a content by content basis. Impairment is assessed on an annual basis by comparing the unamortized cost to the Group's estimated net realizable value. The Group estimates the net realizable value using expected net cash flows based on expected future levels of advertising and content sub-licensing revenues. For expected future levels of advertising revenue, the Group uses the same estimation methodology used for the impairment assessment of non-exclusive Content Copyrights.

For both exclusive and non-exclusive Content Copyrights, there were no impairments for the years ended December 31, 2013, 2014 and 2015 because a significant portion of the contents was related to movies and TV series, of which approximately 70% to 90% of the purchase costs of the Content Copyrights had already been amortized during the first year of the licensed period. As such, the unamortized carrying amounts were lower than the respective net realizable values when the impairment assessment was performed.

For other long-lived assets, the Group evaluates its long-lived assets for impairment whenever events or changes in circumstances indicate that the carrying amount of an asset may no longer be recoverable. The Group assesses the recoverability of the long-lived assets by comparing the carrying value of the long-lived assets to the estimated undiscounted future cash flows expected to be received from use of the assets and their eventual disposition at the lowest level of identifiable cash flows. Such assets are considered to be impaired if the sum of the expected undiscounted cash flows is less than the carrying amount of the assets. If the Group identifies an impairment, the carrying value of the asset will be reduced to its estimated fair value based on a discounted cash flow approach or, when available and appropriate, to comparable market values. The impairment of online game license were USD 808 thousand, USD 808 thousand and USD 770 thousand as of December 31, 2013, 2014 and 2015, respectively.

(p)

Commitments and contingencies

In the normal course of business, the Group is subject to contingencies, such as legal proceedings and claims arising out of its business, that cover a wide range of matters. Liabilities for such contingencies are recorded when it is probable that a liability has been incurred and the amount of the assessment can be reasonably estimated. In regards to legal cost, the Group recorded such costs as incurred.

Certain conditions may exist as of the date the financial statements are issued, which may result in a loss to the Group, but which will only be resolved when one or more future events occur or fail to occur. The Group's management and its legal counsel assess such contingent liabilities, and such assessment inherently involves an exercise of judgment. In assessing loss contingencies related to legal proceedings that are pending against the Group or unasserted claims that may result in such proceedings, the Group, in consultation with its legal counsel, evaluates the perceived merits of any legal proceedings or unasserted claims as well as the perceived merits of the amount of relief sought or expected to be sought therein.

If the assessment of a contingency indicates that it is probable that a material loss has been incurred and the amount of the liability can be estimated, then the estimated liability would be accrued in the Group's financial statements. If the assessment indicates that a potentially material loss contingency is not probable, but is reasonably possible, or is probable but cannot be estimated, then the nature of the contingent liability, together with an estimate of the range of possible loss, if determinable and material, would be disclosed.

(q)

Operating leases

Leases in which a significant portion of the risks and rewards of ownership are retained by the lessor are classified as operating leases. Payments made under operating lease are charged to the statements of comprehensive income on a straight-line basis over the period of the lease.

(r)

Revenue recognition

The Group generates revenues from various streams. The Group operates a prepaid virtual items system, under which, prepaid virtual items at fixed face value are sold to third parties. Virtual items purchased can be used to subscribe for membership or purchase of virtual items in online games, as discussed below. Virtual items sold but not yet consumed by the users are recorded as “Receipts in advance from customers” and upon consumption, they are recognized as membership subscription and online game revenue according to the respective prescribed revenue recognition policies addressed below.

I)	Subscription revenues

The Group operates a VIP membership program where VIP members can have access to high speed online acceleration services, online streaming and other access privileges. The membership fee is time-based and is collected up-front from subscribers except in the cases when they elect to pay via their mobile operators. The membership fee is collected when the subscribers pay for the monthly phone bills. The terms of time-based subscriptions range from one month to twelve months, with the subscribers having the option to renew the contract. The receipt of subscription fee is initially recorded as deferred revenue and revenue is recognized ratably over the period of subscription as services are rendered. Unrecognized portion beyond 12 months from balance sheet date is classified as a long-term liability. The Group evaluated the principal versus agent criteria and determined that the Group is the principal in the transaction and accordingly record revenue on a gross basis. In determining whether to report revenues gross for the amount of subscription revenue, the Group assesses whether it maintains the principal relationship with the VIP members, whether it bears the credit risk and whether it establishes prices for the end users. Service fees levied by online system, fixed phone line and mobile payment channels (‘‘Payment Handling Fees'') are recorded as the cost of revenues in the same period as the revenue for the membership fee is recognized.

II)	Advertising revenues

Advertising revenues are derived principally from arrangements where the customers pay to place their advertisements on the Group's platform in different formats over a particular period of time. Such formats generally includes but not limited to videos, banners, links, logos and buttons. Advertisements on the Group's platform are generally charged on the basis of duration, and advertising contracts are signed to establish the fixed price and the advertising services to be provided. The Group enters into advertising contracts with third party advertising agencies that represents advertisers, as well as directly with advertisers. A typical contract term would range from a few days to 3 months. Both third party advertising agencies and direct advertisers are generally billed at the end of the display period and payments are due usually within 3 months.

Where the Group's customers purchase multiple advertising spaces with different display periods in the same contract, the Group allocates the total consideration to the various advertising elements based on their relative fair values and recognizes revenue for the different elements over their respective display periods. The Group determines the fair values of different advertising elements based on the prices charged when these elements were sold on a standalone basis. The Group recognizes revenue on the elements delivered and defers the recognition of revenue for the fair value of the undelivered elements until the remaining obligations have been satisfied. Where all of the elements within an arrangement are delivered uniformly over the agreement period, the revenue is recognized on a straight line basis over the contract period.

Transactions with third party advertising agencies

For contracts entered into with third party advertising agencies, the third party advertising agencies will in turn sell the advertising services to advertisers. Revenue is recognized ratably over the contract period of display based on the following criteria:

—There is persuasive evidence that an arrangement exists—the Group will enter into framework and execution agreements with the advertising agencies, specifying price, advertising content, format and timing

—Price is fixed and determinable—prices charged to the advertising agencies are specified in the agreements, including relevant discount and rebate rates

—Services are rendered—the Group recognizes revenue ratably over the contract period of display

—Collectability is reasonably assured—the Group assesses credit history of each advertising agency before entering into any framework and execution agreements. If the collectability from the agencies is assessed as not reasonably assured, the Group recognizes revenue only when the cash is received and all the other revenue criteria are met.

The Group provides sales incentives in the forms of discounts and rebates to third party advertising agencies based on purchase volume. As the advertising agencies are viewed as the customers in these transactions, revenue is recognized based on the price charged to the agencies, net of sales incentives provided to the agencies. Sales incentives are estimated and recorded at the time of revenue recognition based on the contracted rebate rates and estimated sales volume based on historical experience.

Transactions with advertisers

The Group also enters into advertisement contracts directly with advertisers. Under these contracts, similar to transactions with third party advertising agencies, the Group recognizes revenue ratably over the contract period of display. The terms and conditions, including price, are fixed according to the contract between the Group and the advertisers. The Group also performs credit assessment of all advertisers prior to entering into contracts. Revenue is recognized based on the amount charged to the advertisers, net of discounts.

The Group has estimated and recorded sales rebates provided to the agencies and advertisers of USD 7,207 thousand , USD 5,005 thousand and USD 1,179 thousand for the years ended December 31, 2013, 2014 and 2015, respectively.

III)	Other internet value-added services

i)	Online game revenues

Users play games through the Group's platform free of charge and are charged for purchases of virtual items including consumable and perpetual items, which can be utilized in the online games to enhance their game-playing experience. Consumable items represent virtual items that can be consumed by a specific user within a specified period of time. Perpetual items represent virtual items that are accessible to the users' account over the life of the online game.

Pursuant to contracts signed between the Group and game developers, revenue from the sale of virtual items are shared based on a pre-agreed ratio for each game. The Group enters into both non-exclusive and exclusive licensing contracts with game developers.

Non-exclusive game licensed contracts

The games under non-exclusive licensed contracts are maintained, hosted and updated by the game developers. The Group mainly provides access to the platform and limited after-sale services to the game players. The determination of whether to record these revenues using the gross or net method is based on an assessment of various factors; the primary factors are whether the Group acts as the principal in offering services to the game players or as agent in the transaction, and the specific requirements of each contract. The Group determined that for non-exclusive game licensed arrangements, the third party game developers are the principal given that the game developers design and develop the game services offered, have reasonable latitude to establish prices of game virtual items, and are responsible for maintaining and upgrading the game content and virtual items. Accordingly, the Group records online game revenue, net of the portion remitted to the game developers.

Given that online games are managed and administered by the game developers for non-exclusive licensed games, the Group does not have access to the data on the consumption details and the types of virtual items purchased by the game players. The Group has adopted a policy to recognize revenues relating to both consumable and perpetual items over the shorter of 1) estimated lives of the games and 2) the estimated lives of the user relationship with the Group, which were approximately two to six months for the periods presented.

Adjustments arising from the changes of estimated lives of virtual items are applied prospectively as such changes are resulted from new information indicating a change in the game player behavioral patterns.

Exclusive licensing game contracts

For exclusive licensing contracts with game developers, the games are maintained and hosted by the Group. Accordingly, the Group is determined to be the principal, the Group records online game revenue on a gross basis, with the amount remitted to the game developers reported as cost of revenue. Payment Handling Fees are recognized as cost of revenues when the related revenues are recognized.

For exclusive licensed games which are maintained on the Group's server, the Group has access to the data on the consumption details and types of virtual items purchased by the game players. The Group does not maintain information on consumption details of virtual items, and only have limited information related to the frequency of log-ons. Given that a substantial portion of the virtual items purchased by the game players in exclusive licensed games are perpetual items, management determined that it would be most appropriate to recognize revenue over the shorter of 1) estimated lives of the games and 2) the estimated lives of the user relationship with the Group, which were approximately one to three months for the periods presented. Revenues related to consumable items are recognized immediately upon consumption.

Game players can purchase prepaid virtual items which can be used to purchase virtual items via online channels. The Group incurs service fees levied by those payment channels, and such payment expenses are recorded as the cost of revenues when the related revenues are recognized.

For both non-exclusive and exclusive licensed games, the Group estimates the life of virtual items to be the shorter of the estimated lives of the games and the estimated lives of the user relationship. The estimated user relationship period is based on data collected from those users who have purchased virtual items. To estimate the life of the user relationship, the Group maintains a software system that captures the following information for each user: the date of first log-in, the date of first purchase for a virtual item, the date of last purchase for a virtual item and the date the user ceases to play the game. The Group estimates the life of the user relationship to be the average period from the first purchase of a virtual item to the date the user ceases to play the game. The estimate of the life of the user relationship is based only on the data of those users who have purchased virtual items and is made on a game-by-game basis.

To estimate the life of the games, the Group considers both games that they operate as well as games in the market that are of a similar nature. The Group categorizes these games by their nature, such as simulation games, role playing games and others, which appeal to players belonging to different demographics. The Group estimates that the life of each group of the games to be the average period from the date of launch for such games to the date the games are expected to be removed from the website or terminated altogether. When the Group launches a new game, they estimate the life of the game and user relationship based on lives of other similar games in the market until the new game establishes its own history. The Group also considers the game's profile, attributes, target audience, and its appeal to players of different demographic groups in estimating the user relationship period.

The consideration of user relationship with each online game is based on the Group's best estimate that takes into account all known and relevant information at the time of assessment. Adjustments arising from the changes of estimated lives of virtual items are applied prospectively as such changes are resulted from new information indicating a change in the game player behavioral patterns. Any changes in the estimates of lives of virtual items may result in the Group's revenues being recognized on a basis different from prior periods and may cause the Group's operating result to fluctuate. The Group periodically assesses the estimated lives of the virtual items and any changes from prior estimates are accounted for prospectively. Any adjustments arising from changes in user relationship as a result of new information will be accounted as a change in accounting estimate in accordance with ASC 250 Accounting Changes and Error Corrections.

ii)	Content sub-licensing revenue

With the exclusive Content Copyrights, the Group has the right to sub-license the broadcasting rights to third parties. The Group generates revenue from sub-licensing these broadcasting rights on a recurring basis to third party customers for cash, mainly video streaming internet platforms, for cash payments at a fixed rate for a fixed period of time that falls within the original exclusive license period. Revenue is recognized in full at the later of the delivery of the master copy of the content with acceptance acknowledged by the customers and the commencement of the license period, as the Group is not obliged to provide any other services. The Group performs credit assessment of its customers prior to entering into contracts to ensure that collection of the arrangement fee is reasonably assured. There is no ongoing obligation of the Group after delivery of the master copy of the content. The Group recognized content sub-licensing revenue from discontinued operations of USD 7,369 thousand, USD 9,218 thousand and USD 2,929 thousand for the years ended December 31, 2013, 2014 and 2015, respectively.

iii)	Pay per view subscription revenue

The Group operates a pay per view subscription program in which subscribers pay a monthly fee to watch and have access to a collection of movie contents. The subscription fee is time-based and is collected up-front from subscribers except in the cases where they elect to pay via their mobile operators. The subscription fee is collected when the subscribers pay for their monthly phone fees. The terms of time-based subscriptions range from one month to twelve months, with the subscribers having the option to renew the contract. The receipt of revenue is initially recorded as deferred revenue and revenue is recognized ratably over the period of subscription as services are rendered.

Viewers can also pay to watch individual movies for an unlimited number of times. Revenue is recognized when the movie is broadcasted to the viewer.

iv)	Revenues from traffic referral programs

The Group enters into contracts with certain third party portals/websites to earn revenue by referencing online traffic to these third party portals/websites. On a monthly basis, the Group receives data on the user traffic and the related monthly revenue from these third party portals/ websites. Under these programs, the Group recognizes its share of revenues based on contractual rates applied to user traffic referred to the advertisements of the third parties.

Revenues from ZQB and cloud computing

The Group launched Project Crystal in 2014. Project Crystal is an ongoing project involving technology innovation in crowd-sourcing idle bandwidth and potentially storage from the Group's user base, by providing crowd-sourced bandwidth either for internal use by the Group or by other third parties. Project Crystal, under the trademark Nebula CDN, refers to an ecosystem which allows users to enjoy smooth video viewing experiences in various complex network environments and enables internet content providers to increase the stability and security of their services and to reduce operating costs. These services are mainly used in online game downing, online video and mobile application.

As part of Project Crystal, since 2015 Q2, the Group commenced to sell zhuangqianbao (“ZQB”). ZQB is a hardware which could be worked as a micro-computer based on Linux system, it also contains CPU, RAM, ROM and input/output devices.

In the Group, the consideration, being the crystal points, will only be given to the users when they successfully shared unused bandwidth with the Group in the future. Therefore, the Group receives an identifiable benefit, being the bandwidth, from the users in exchange for the crystal points. Thus, (a) users purchase ZQB from the Group and the Group purchase excess bandwidth from the users is sufficiently separable and (b) the company can reasonably estimate the fair value of this benefit. Therefore, management determined that (i) ZQB sold to users represent identifiable benefit to the users that is separable from the ability to sell bandwidth back to the Group and (ii) the bandwidth purchased from the users represent identifiable benefit to the Group that is separable from ZQB.

The sales of ZQB and future purchase of excess bandwidth by the Group are considered separate transactions. Therefore, sales of ZQB should be reported as revenue, while crystal points given for purchase of bandwidth should be reported as bandwidth cost.

The Group sells to online platforms such as JD.com and Taobao.com. The revenue from ZQB is recognized when the item is dispatched to customers.

The core business principle of cloud computing is to collect idle uplink capacity from individual with compensation, and sells to online video streamers such as Iqiyi and Kankan (which Xunlei sold to Nesound in 2015 Q2). On a monthly basis, the Group records the bandwidth it delivers and recognize revenue from these online video streamers under contractual rates applied (price per GB of bandwidth multiplies total GBs of bandwidth per month). The cost of collecting unused bandwidth is recorded as bandwidth costs within cost of revenue.

(s)

Barter transactions

The Group also enters into agreements with third parties (mainly video streaming internet platform) to exchange content. The exchanged content provides rights for each respective party only to broadcast the content received on its own website; though, each party retains the right to continue broadcasting and or sub-license the rights to the content it surrendered in the exchange. These transactions are non-monetary transactions similar to barter transactions, and the Group follows ASC 845, Non-Monetary Transactions and ASC 360-10, Property, Plant, and Equipment.

Such barter transactions should be recorded at fair value of the surrendered assets in the transaction unless such fair value are not determinable within reasonable limits. The Group estimated the fair value of the content by gathering ‘‘price reference'' of cash sub-licensing transactions of each exclusive content right and categorizing it into two buckets (1) cash transaction prices with established counterparties and (2) cash transaction prices with less established counterparties. With this information, the Group calculates an ‘‘average cash transaction price'' for each category to be used as a reference for the non-monetary transaction. The attributable cost of the related exclusive Content Copyright surrendered is released and recorded as the cost of the barter transaction using the individual-film-forecast computation method. This method calculates such cost based on the ratio of the estimated fair value of the exchanged content over the aggregated estimated fair value to be generated by the exclusive Content Copyrights for their whole license period or estimate useful lives. The Group revisits the forecast at each quarter or year end and make adjustment, when appropriate.

The Group generated net gains amounted to USD 137 thousand (2013:USD1,020 thousand, 2014: USD1,556 thousand) from barter transactions, which is the net amount of proceeds of USD 409 thousand 2013: USD2,059 thousand, 2014: USD4,428 thousand), after deducting related allocation of cost of USD 247 thousand (2013:USD915 thousand, 2014: USD2,606 thousand) and business tax and surcharge of USD 25 thousand (2013:USD124 thousand, 2014: USD266 thousand).

(t)

Sales and marketing expenses

Sales and marketing expenses comprise primarily of salary, commission and benefits of sales and marketing personnel and external advertising and market promotion expenses. The external advertising and market promotion expenses from continuing operations amounted to approximately USD 5,056 thousand, USD 5,978 thousand and USD 8,089 thousand for the years ended December 31, 2013, 2014 and 2015, respectively.

(u)

General and administrative expenses

General and administrative expenses consist primarily of salary and benefits, professional service fees, legal expenses and other administrative expenses.

(v)

Research and development costs

The Group incurred research and development costs to develop its downloading software. Costs incurred during the research phase are expensed as incurred. Costs incurred for the development of the downloading software prior to the establishment of technological feasibility, which is when a working model is available, are expensed when incurred. The development costs qualified for capitalization have been immaterial for the periods presented.

The Group also incurred development costs in connection with an internal-use ERP software to further enhance management to monitor the business. While internal and external costs incurred during the preliminary project stage are expensed as incurred, costs relating to activities during the application development stages have been capitalized. During each of the three years ended December 31, 2015, nil software development costs were capitalized as intangible assets, respectively.

In addition, the Group incurred other research and development costs in relation to software used to support its operations. Any development costs qualified for capitalization have been immaterial for the periods presented.

(w)

Taxation and uncertain tax positions

Income taxes are accounted for under the asset and liability method. Deferred tax assets and liabilities are recognized for the future tax consequences attributable to differences between the financial statements' carrying amounts of existing assets and liabilities and their respective tax bases and tax loss carry forwards. Deferred tax assets and liabilities are measured using enacted tax rates in effect for the year in which the difference is expected to be recovered or settled. The effect on deferred tax assets and liabilities of a change in tax rates is recognized in the consolidated statement of operations in the period that includes the enactment date. A valuation allowance is provided to reduce the carrying amount of deferred tax assets if it is considered more likely than not that some portion, or all, of the deferred tax assets will not be realized. The estimation of future taxable income involves significant judgement and estimates. Based on management's estimated future taxable income, management concluded that it is more likely than not that the net operating losses carried forward can be utilized prior to their respective expiration dates. On January 1, 2007, the Group adopted the guidance regarding uncertain tax positions and evaluated its open tax positions that exist in each jurisdiction for each reporting period. If an uncertain tax position is taken or expected to be taken in a tax return, the tax benefit from that uncertain position is recognized in the Group's consolidated financial statements if it is more likely than not that the position is sustainable upon examination by the relevant taxing authority. The Group did not have any significant uncertain tax position and there was no effect on its financial condition or results of operations as a result of implementing the new guidance. The Group recognizes interest and penalties accrued on any unrecognized tax benefits as a component of income tax expense, if any. Nevertheless, no significant interest and penalties were recorded in the years ended December 31, 2013, 2014 and 2015.

Transition from PRC Business Tax to PRC Value Added Tax

Effective September 1, 2012, the Chinese government has begun a pilot program (the “Pilot Program”) for transition from imposing business tax to imposing of value added tax (“VAT”) for revenues generated in certain industries. The Pilot Program has been expanded from Shanghai to eight other cities and provinces in China, including Beijing and Shenzhen. The Group's advertising and content sub-licensing revenues are subject to the Pilot Program since November 1, 2012, and its subscription revenue, online game revenue and pay per view subscription revenue are subject to the Pilot Program since June 1, 2014. Business Tax has been imposed primarily on revenues from the provision of taxable services, assignments of intangible assets and transfers of real estate.

VAT payable on goods sold or taxable labor services provided by a general VAT taxpayer for a taxable period is the net balance of the output VAT for the period after crediting the input VAT for the period. Before the implementation of the Pilot Program, the Group was mainly subject to a small amount of VAT mainly for revenues of the sale of software. VAT has been imposed on those revenues at a rate of 17%. With the implementation of the Pilot Program, in addition to the revenues currently subject to VAT, the Group's advertising and content sub-licensing revenues, subscription revenue, online game revenue and pay per view subscription revenue are in the scope of the Pilot Program and are now subject to VAT at a rate of 6%.

(x)

Retirement benefits

Full-time employees of the Company's subsidiaries, consolidated VIE and its subsidiaries in the PRC participate in a government mandated multi-employer defined contribution plan pursuant to which certain pension benefits, medical care, unemployment insurance, employee housing fund and other welfare benefits are provided to employees. Chinese labor regulations require that the subsidiaries and VIEs of the Company make contributions to the government for these benefits based on certain percentages of the employees' salaries. The Group has no legal obligation for the benefits beyond the contributions made. The total amounts for such employee benefits, which are expensed as incurred, were USD3,243 thousand, USD3,818 thousand and USD 5,481 thousand for the years ended December 31, 2013, 2014 and 2015, respectively.

(y)

Share-based compensation

The Group measures share-based compensation at the grant date based on the fair value of the award determined using the Black-Scholes option pricing model. As the Group has granted share options and restricted shares with service-only condition, the Group elected to recognize compensation costs net of estimated forfeitures on a straight line basis over the requisite service period, which is generally the same as the vesting period. The amount of compensation cost recognized at any date is at least equal to the portion of the grant-date value of the award that is vested at that date.

(z)

Government subsidies

The Group receives subsidies from the local PRC government for general use or purchase of equipment. General-use subsidies which are not subject to any conditions or specific use requirements are recorded as subsidy income in the consolidated statements of operations. Subsidies for purchase of equipment are recorded as deferred government grant when received, and are recorded as other income over the expected useful life of the assets after the related equipment has been purchased.

(aa)

Segment reporting

The Group's Chief Executive Officer has been identified as the chief operating decision maker (“CODM”), who reviews consolidated operating results of the Group when making decisions about allocating resources and assessing performance of the Group as a whole. The Group has internal reporting of revenue, cost and expenses that does not distinguish between segments, and reports costs and expense by nature as a whole. The Group does not distinguish between markets or segments for the purpose of internal reporting. Management has determined that the Group operates and manages its business as a single segment which is the operation of its online media platform. All revenues of the Group are derived from mainland China.

An analysis of the different types of revenues for the years ended December 31, 2013, 2014 and 2015 are summarized as follows:


Revenue from continuing operations	Years ended December 31,
(In thousands)	2013		2014		2015
Subscription revenue		86,733		98,189		82,435
Advertising revenue		2,951		5,834		4,802
Other internet value-added services (note a)		32,347		31,789		42,759
Total		122,031		135,812		129,996


note a:	Other internet value-added services mainly comprise revenue from online game, traffic referral programs, technical services regarding online acceleration, online sales revenue, sales of software licenses, and revenue from project crystal (including CDN revenue and revenue from ZQB).

(bb)

Net income / (loss) per share

Net basic income / (loss) per share is computed by dividing net income / (loss) attributable to holders of common shares by the weighted-average number of common shares outstanding during the year using the two class method. Using the two class method, net income / (loss) is allocated between common shares and other participating securities based on their participating rights.

Net diluted income / (loss) per share is calculated by dividing net income / (loss) attributable to common shareholders as adjusted for the effect of dilutive common equivalent shares, if any, by the weighted-average number of common and dilutive common equivalents shares outstanding during the year. Dilutive equivalent shares are excluded from the computation of diluted income / (loss) per share if their effects would be anti-dilutive. Common share equivalents consist of the common shares issuable in connection with the Group's convertible non-redeemable and redeemable preferred shares using the if-converted method, and common shares issuable upon the conversion of the stock options, using the treasury stock method.

(cc)

Comprehensive income

Comprehensive income is defined as the change in equity of a Group during the period from transactions and other events and circumstances excluding transactions resulting from investments from shareholders and distributions to shareholders. Accumulated other comprehensive income, as presented on the accompanying consolidated balance sheets, consists of cumulative translation adjustment.

(dd)

Profit appropriation and statutory reserves

The Group's subsidiaries, consolidated VIE and its subsidiaries incorporated in the PRC are required on an annual basis to make appropriations of retained earnings set at certain percentage of after-tax profit determined in accordance with PRC accounting standards and regulations (“PRC GAAP”). Appropriation to the statutory general reserve should be at least 10% of the after-tax net income determined in accordance with the legal requirements in the PRC until the reserve is equal to 50% of the entities' registered capital. The Group is not required to make appropriation to other reserve funds and the Group does not have any intentions to make appropriations to any other reserve funds.

The general reserve fund can only be used for specific purposes, such as setting off the accumulated losses, enterprise expansion or increasing the registered capital. Appropriations to the general reserve funds are classified in the consolidated balance sheets as statutory reserves.

There are no legal requirements in the PRC to fund these reserves by transfer of cash to restricted accounts, and the Group does not do so.

The following table presents the balances of registered capital, additional paid-in-capital and statutory reserves of entities within the Group incorporated in China as of December 31, 2014 and 2015 for the Group's reporting purpose in China as determined under generally accepted accounting principles in China:


(In thousands)	December 31, 2014		December 31, 2015
Registered capital		54,467		112,435
Additional paid-in capital		161		161
Statutory reserves		5,132		5,132
Total		59,760		117,728

Relevant laws and regulations permit payments of dividends by the PRC subsidiaries and affiliated companies only out of their retained earnings, if any, as determined in accordance with respective accounting standards and regulations. Accordingly, the above balances are not allowed to be transferred to the Company in terms of cash dividends, loans or advances (See also Note 25).

(ee)

Dividends

Dividends are recognized when declared. No dividends were declared for the years ended December 31, 2013, 2014 and 2015 respectively. The Group does not have any present plan to pay any dividends on common shares in the foreseeable future. The Group currently intends to retain the available funds and any future earnings to operate and expand its business.

(ff)

Recent accounting pronouncements

In April 2014, the FASB issued ASU 2014-08, “Reporting Discontinued Operations and Disclosures of Disposals of Components of an Entity”, which changes the threshold for reporting discontinued operations and adds new disclosures. The new guidance defines a discontinued operation as a disposal that “represents a strategic shift that has (or will have) a major effect on an entity's operations and financial results.” The standard is required to be adopted by public business entities in annual periods beginning on or after December 15, 2014, and interim periods within those annual periods. Entities may “early adopt” the guidance for new disposals. The adoption of this pronouncement does not have a significant impact on our consolidated financial statements.

On May 28, 2014, the FASB and IASB issued the standard on the recognition of revenue from contracts with customers. The FASB is amending the FASB Accounting Standards Codification and creating a new Topic 606, Revenue from Contracts with Customers, to supersede the revenue recognition requirements in Topic 605, Revenue Recognition, and most industry-specific guidance throughout the Industry Topics of the Codification. Additionally, the amendments supersede some cost guidance included in Subtopic 605-35, Revenue Recognition—Construction-Type and Production-Type Contracts. For a public entity, the amendments are effective for annual reporting periods beginning after December 15, 2016, including interim periods within that reporting period. Early application is not permitted. The Company is currently evaluating the impact on its consolidated financial statements of adopting this guidance. In August 2015, the FASB proposed to defer the effective date of Update 2014-09 for all entities by one year, which means calendar year-end public companies are required to apply the new guidance beginning in 2018.

In June 2014, under ASC 718, Compensation—Stock Compensation, the FASB issued Accounting for Share-Based Payments When the Terms of an Award Provide That a Performance Target Could Be Achieved after the Requisite Service Period. These amendments apply to all reporting entities that grant their employees share-based payments in which the terms of the award provide that a performance target that affects vesting could be achieved after the requisite service period. That is the case when an employee is eligible to retire or otherwise terminate employment before the end of the period in which a performance target could be achieved and still be eligible to vest in the award if and when the performance target is achieved. For all entities, the amendments are effective for annual periods and interim periods within those annual periods beginning after December 15, 2015. Earlier adoption is permitted. The adoption of this guidance is not expected to have significant impact on its consolidated financial statements.

In August 2014, the FASB issued Presentation of Financial Statements – Going Concern. This standard requires management to evaluate for each annual and interim reporting period whether it is probable that the reporting entity will not be able to meet its obligations as they become due within one year after the date that the financial statements are issued. If the entity is in such a position, the standard provides for certain disclosures depending on whether or not the entity will be able to successfully mitigate its going concern status. This guidance is effective for annual periods ending after December 15, 2016 and interim periods within annual periods beginning after December 15, 2016. Early application is permitted. The adoption of this pronouncement is not expected to have significant impact on its consolidated financial statements.

On February 18, 2015, the FASB issued Accounting Standards Update 2015-02, Consolidation (Topic 810) –Amendments to the Consolidation Analysis. The new guidance applies to entities in all industries and provides a new scope exception to registered money market funds and similar unregistered money market funds. It provide new guidance to companies in determining whether an entity is a variable interest entity (VIE), assessing fees paid to a decision maker or a service provider, and consideration of related parties in the economics test. The standard is effective for public business entities for annual periods beginning after December 15, 2015. This new guidance is not expected to have significant impact to the Group's existing structure.

In July 2015, the FASB issued Accounting Standards Update 2015-11, Inventory (Topic 330) –Simplifying the Measurement of Inventory. The amendments apply to inventory that is measured using the first-in, first-out (FIFO) or average cost method. The main change is in the subsequent measurement guidance from the lower of cost or market to the lower of cost and net realizable value for inventory within the scope of this Update. Market could be replacement cost, net realizable value, or net realizable value less an approximately normal profit margin. An entity should measure inventory within the scope of this Update at the lower of cost and net realizable value. Net realizable value is the estimated selling prices in the ordinary course of business, less reasonably predictable costs of completion, disposal, and transportation. The amendments in this Update are effective for public business entities for fiscal years beginning after December 15, 2016, including interim periods within those fiscal years. The amendments in this update should be applied prospectively with earlier application permitted as of the beginning of an interim or annual reporting period. The adoption of this ASU is not expected to have significant impact to the Group's consolidated financial statements.

In November 2015, the FASB issued ASU 2015-17, Income Taxes: Balance Sheet Classification of Deferred Taxes. ASU 2015-17 simplifies the presentation of deferred income taxes, which require the deferred tax liabilities and assets be classified as noncurrent in a classified statement of financial position. ASU 2015-17 is effective for fiscal years and interim periods within those years beginning after December 15, 2016. . The Group believes that this ASU will have an impact on the Group's consolidated balance sheet and related disclosures.

In January 2016, the FASB issued ASU 2016-01, Financial Instruments–Overall: Recognition and Measurement of Financial Assets and Financial Liabilities. The new guidance will impact the accounting for equity investments, financial liabilities under the fair value option, and the presentation and disclosure requirements for financial instruments. In addition, the FASB clarified the need for a valuation allowance on deferred tax assets resulting from unrealized losses on available-for-sale debt securities. The accounting for other financial instruments, such as loans, investments in debt securities, and financial liabilities not under the fair value option is largely unchanged. The standard is effective for public business entities for annual periods (and interim periods within those annual periods) beginning after December 15, 2017. . The adoption of this ASU is not expected to have significant impact to the Group's consolidated financial statements.

In February 2016, the FASB issued ASU 2016-02, Leases (Topic 842). The core principle of Topic 842 is that a lessee should recognise the assets and liabilities that arise from leases. A lessee should recognise in the balance sheet a liability to make lease payments (the lease liability) and a right-of-use asset representing its right to use the underlying asset for the lease term. For leases with a term of 12 months or less, a lessee is permitted to make an accounting policy election by class of underlying asset not to recognise lease assets and lease liabilities. If a lessee makes this election, it should recognize lease expense for such leases generally on a straight-line basis over the lease term. ASU 2016-02 is effective for fiscal years and interim periods within those years beginning after December 15, 2018. Early adoption is permitted. The Group is currently evaluating the impact ASU2016-02 will have on the Group consolidated balance sheet, results of operations, cash flows and related disclosures.

On 30 March 2016, the FASB issued ASU 2016-09, Compensation - Stock Compensation (Topic 718): Improvements to Employee Share-Based Payment Accounting. The amendments in ASU 2016-09 affect all entities that issue share-based payment awards to their employees and involve multiple aspects of the accounting for share-based payment transactions, including income tax consequences, classification of awards as either equity or liabilities, and classification on the statement of cash flows. All excess tax benefits and tax deficiencies (including tax benefits of dividends on share-based payment awards) should be recognized as income tax expense or benefit in the income statement. The tax effects of exercised or vested awards should be treated as discrete items in the reporting period in which they occur. An entity also should recognize excess tax benefits regardless of whether the benefit reduces taxes payable in the current period. Tax benefits should be classified along with other income tax cash flows as an operating activity. An entity can make an entity-wide accounting policy election to either estimate the number of awards that are expected to vest (consistent with current GAAP) or account for forfeitures when they occur. Under current GAAP, one of the requirements for an award to qualify for equity classification is that an entity cannot partially settle the award in cash in excess of the employer's minimum statutory withholding requirements. Under ASU 2016-09, the threshold to qualify for equity classification permits withholding up to the maximum statutory tax rates in the applicable jurisdictions. Cash paid by an employer when directly withholding shares for tax withholding purposes should be classified as a financing activity. For public business entities, ASU 2016-09 is effective for annual periods beginning after 15 December 2016, and interim periods within those annual periods. The Group is currently evaluating the impact ASU2016-09 will have on the Group consolidated balance sheet, results of operations, cash flows and related disclosures.

Discontinued operations

12 Months Ended

Dec. 31, 2015

Discontinued operations [Abstract]

Discontinued operations

Discontinued operations

In July 2015, the Company completed the divesture of the Company's entire stake in its online video streaming platform, Xunlei Kankan to Beijing Nesound International Media Corp., Ltd., an independent third party. The total sales price was RMB 130,000 thousand (USD 21,183 thousand). The disposal is due to a shift of strategy focusing on the Group's most competitive operations.

Assets and liabilities related to Xunlei Kankan were reclassified as assets/liabilities held for sale as of December 31, 2014, while results of operations related to Xunlei Kankan, including comparatives, were reported as loss from discontinued operations.

Results of the discontinued operation

USD (In thousands)	2013			2014			2015
Revenues, net of rebates and discounts		58,213			47,075			15,677
Business taxes and surcharges		(1,746	)		(1,480	)		(447	)
Net revenues		56,467			45,595			15,230
Cost of revenues		(43,002	)		(42,704	)		(13,240	)
Gross profit		13,465			2,891			1,990
Operating expenses
Research and development expenses		(7,092	)		(6,035	)		(3,245	)
Sales and marketing expenses		(16,762	)		(15,726	)		(7,384	)
General and administrative expenses		(4,410	)		(3,016	)		(3,051	)
Total operating expenses		(28,264	)		(24,777	)		(13,680	)
Net gain from exchanges of content copyrights		1,020			1,556			137
Operating loss		(13,779	)		(20,330	)		(11,553	)
Gain on disposal of Kankan		—			—			1,505
Income taxes benefits/(expenses)		1,207			1,923			(2,048	)
Loss from discontinued operations		(12,572	)		(18,407	)		(12,096	)

Assets and liabilities of the discontinued operation

USD (In thousands)	December 31, 2014
Assets
Accounts receivable, net		23,741
Prepayments and other current assets		670
Copyrights related to content-current portion		16,013
Property and equipment, net		1,111
Intangible assets		4,997
Prepayment for content		456
Other long-term prepayments and receivables		57
Total assets held for sale		47,045

Liabilities
Accounts payables		25,267
Deferred revenue, current portion		1,018
Accrued liabilities and other payables		1,082
Total liabilities held for sale		27,367

Cash flows generated from/ (used in) discontinued operations

USD (In thousands)	2013			2014			2015
Net cash generated from/(used in) operating activities		10,439			2,293			(1,554)
Net cash (used in)/generated from investing activities		(16,402	)		(34,661	)		9,135
Net cash used in financing activities		—			—			—
Net cash flow for the year		(5,963)			(32,368	)		7,581

The disposal of the online video streaming platform was completed on 15 July 2015 and a gain of USD 1,505 thousand was recognized.

Cash and cash equivalents [Abstract]

The entire disclosure related to a disposal group. Includes, but is not limited to, a discontinued operation, disposal classified as held-for-sale or disposed of by means other than sale or disposal of an individually significant component.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 205
-SubTopic 20
-Section 45
-Paragraph 11
-URI http://asc.fasb.org/extlink&oid=51716988&loc=SL51721533-107759

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 205
-SubTopic 20
-Section 50
-Paragraph 4B
-URI http://asc.fasb.org/extlink&oid=51717284&loc=SL51721665-107760

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 205
-SubTopic 20
-Section 50
-Paragraph 5C
-URI http://asc.fasb.org/extlink&oid=51717284&loc=SL51721675-107760

Reference 4: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 360
-SubTopic 10
-Section 50
-Paragraph 3A
-URI http://asc.fasb.org/extlink&oid=51719941&loc=SL51724579-110230

Reference 5: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 205
-SubTopic 20
-Section 50
-Paragraph 4A
-URI http://asc.fasb.org/extlink&oid=51717284&loc=SL51721663-107760

Reference 6: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 360
-SubTopic 10
-Section 50
-Paragraph 3
-URI http://asc.fasb.org/extlink&oid=51719941&loc=d3e2941-110230

Reference 7: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 205
-SubTopic 20
-Section 50
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=51717284&loc=d3e1361-107760

Reference 8: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 205
-SubTopic 20
-Section 50
-Paragraph 5B
-URI http://asc.fasb.org/extlink&oid=51717284&loc=SL51721673-107760

Reference 9: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 205
-SubTopic 20
-Section 50
-Paragraph 3A
-URI http://asc.fasb.org/extlink&oid=51717284&loc=SL51721659-107760

Reference 10: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 205
-SubTopic 20
-Section 50
-Paragraph 5A
-URI http://asc.fasb.org/extlink&oid=51717284&loc=SL51721671-107760

Reference 11: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 205
-SubTopic 20
-Section 50
-Paragraph 5D
-URI http://asc.fasb.org/extlink&oid=51717284&loc=SL51721677-107760

Reference 12: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 205
-SubTopic 20
-Section 50
-Paragraph 3
-URI http://asc.fasb.org/extlink&oid=51717284&loc=d3e1474-107760

Reference 13: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 205
-SubTopic 20
-Section 50
-Paragraph 7
-URI http://asc.fasb.org/extlink&oid=51717284&loc=SL51721683-107760

+ Details

Cash and cash equivalents

12 Months Ended

Dec. 31, 2015

4.	Cash and cash equivalents

Cash and cash equivalents represent cash on hand, cash held at bank, and time deposits placed with banks or other financial institutions, which have original maturities of three months or less. Cash on hand and cash held at bank balance as of December 31, 2014 and 2015 primarily consist of the following currencies:


	December 31, 2014				December 31, 2015
(In thousands)	Amount		USD equivalent		Amount		USD equivalent
RMB		674,001		110,149		606,845		93,454
USD		294,036		294,036		268,198		268,198
HKD		697		90		969		125
Total				404,275				361,777

Time deposits with original maturities of three months or less as of December 31, 2014 and 2015 primarily consist of the following currencies:


	December 31, 2014				December 31, 2015
(In thousands)	Amount		USD equivalent		Amount		USD equivalent
RMB		156,749		25,617		349,099		53,760
USD		5,500		5,500		260,597		260,597
Total				31,117				314,357

The entire disclosure for cash and cash equivalent footnotes, which may include the types of deposits and money market instruments, applicable carrying amounts, restricted amounts and compensating balance arrangements. Cash and equivalents include: (1) currency on hand (2) demand deposits with banks or financial institutions (3) other kinds of accounts that have the general characteristics of demand deposits (4) short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates. Generally, only investments maturing within three months from the date of acquisition qualify.

Short-term investments

12 Months Ended

Dec. 31, 2015

Short-term investments [Abstract]

5.	Short-term investments


(In thousands)	December 31, 2014		December 31, 2015
Investments in financial instruments (note)		29,427		70,328


Note:		the investments were issued by commercial banks in China with a variable interest rate indexed to performance of underlying assets. Since these investments' maturity dates are within one year, they are classified as short-term investments.

Time deposits and investments in financial instruments are stated on the balance sheet at the principal amount plus accrued interest. Interest income is recorded in “other income” in the statement of comprehensive income.

Accounts receivable, net

12 Months Ended

Dec. 31, 2015

Accounts receivable, net [Abstract]

Prepayments and other assets [Abstract]

6.	Accounts receivable, net

Continuing operations (In thousands)	December 31, 2014			December 31, 2015
Accounts receivable		5,311			11,392
Less: Allowance for doubtful accounts		(131	)		(126	)
Accounts receivable, net		5,180			11,266

The accounts receivable from continuing operations that was fully reserved as of December 31, 2014 and 2015 was USD 0.1 million and USD 0.1 million, respectively.

The following table presents movement in the allowance for doubtful accounts:


(In thousands)	December 31, 2013		December 31, 2014			December 31, 2015
Balance at beginning of the year		—		—			131
Additions		—		523			4
Reversals		—					—
Write-off		—		(393	)		—
Exchange difference		—		1			(9	)
Balance at end of the year		—		131			126

The top 10 customers accounted for about 37% and 39% of accounts receivable as of December 31, 2014 and 2015, respectively.

Prepayments and other assets

12 Months Ended

Dec. 31, 2015

Prepayments and other assets

7.	Prepayments and other assets


(In thousands)	December 31, 2014		December 31, 2015
Current portion:
Advance to suppliers		520		882
Interest-free loans to employees (note a)		3,625		3,200
Low-interest loans to employees, current portion (note b)		64		—
Advance to employees for business purposes		585		957
Interest receivable		5,380		564
Rental and other deposits		774		224
Prepayment for share repurchase plan (note c)		1,000		712
Prepaid game sharing costs		458		—
Prepaid professional fees		900		—
Prepaid management insurance		179		209
Receivable from Nesound (note d)		—		4,004
Prepayment for taxation		—		2,041
Others		405		275
Total of prepayments and other current assets		13,890		13,068
Non-current portion:
Prepayments for online game licenses		5,346		4,786
Long term receivable		—		1,812
Low-interest loans to employees, non-current portion (note b)		449		833
Total of long-term prepayments and other assets		5,795		7,431


Note a:		The Group had entered into loan contracts with certain employees as at December 31, 2014 and 2015, under which the Group provided interest-free loans to these employees. The loan amounts vary amongst different employees and are repayable on demand.

Note b:		The Group had entered into loan contracts with certain employees as at December 31, 2014 and 2015, under which the Group provided low-interest loans to these employees. The loan amounts vary amongst different employees and are repayable in equal instalments on a monthly basis over the term of 10 years.

Note c:		In December 2014, the Company announced a share repurchase program to purchase up to USD 20 million shares and prepaid USD 1 million to a security broker for this program. In December 2015, the Company announced a share repurchase program to purchase up to USD 20 million shares and prepaid USD 0.7 million to a security broker for this program.

Note d.		The Group sold Kankan to Nesound in July 2015. There is a balance receivable remaining amounted USD 4,004 thousand which would be paid to the Group one year after the closing date.

Property and equipment

12 Months Ended

Dec. 31, 2015

Property and equipment [Abstract]

Property and equipment

8.	Property and equipment

Property and equipment consist of the following:


(In thousands)	December 31, 2014			December 31, 2015
Servers and network equipment		32,109			37,332
Computer equipment		1,947			1,544
Furniture, fixtures and office equipment		651			856
Motor vehicles		339			320
Leasehold improvements		1,692			2,504
Total original costs		36,738			42,556
Less: Accumulated depreciation		(20,330	)		(24,534	)
Construction in progress		—			14
Total		16,408			18,036

Depreciation expense recognized for the years ended December 31, 2013, 2014 and 2015 are summarized as follows:


	December 31,		December 31,		December 31,
(In thousands)	2013		2014		2015
Cost of revenues		4,317		5,652		5,003
General and administrative expenses		690		715		628
Sales and marketing expenses		105		133		15
Total		5,112		6,500		5,646

No impairment loss had been recognized for the years ended December 31, 2013, 2014 and 2015.

Intangible assets, net

12 Months Ended

Dec. 31, 2015

Intangible assets, net [Abstract]

9.	Intangible assets, net

The following table presents the movement in intangible assets:


Continuing operations	December 31, 2014										December 31, 2015
(In thousands)	Cost		Amortization			Impairment			Net book value		Cost		Amortization			Impairment			Net book value

Land use rights		5,279		(253	)		—			5,026		5,123		(409	)		—			4,714
Trademarks		6,168		(167	)		—			6,001		5,812		(1,107	)		—			4,705
Non-compete agreement		1,502		(252	)		—			1,250		1,415		(472	)		—			943
Technology (including right-to-use)		2,399		(100	)		—			2,299		2,261		(377	)		—			1,884
Acquired computer software		1,468		(1,141	)		—			327		619		(255	)		—			364
Internal use software development costs		716		(537	)		—			179		675		(641	)		—			34
Online game licenses (note a)		5,304		(4,478	)		(808	)		18		5,827		(4,268	)		(770	)		789
		22,836		(6,928	)		(808	)		15,100		21,732		(7,529	)		(770	)		13,433

Note a:

In 2013, indicator of possible impairment triggered the Group to perform an impairment test for one online game license. The impairment test was triggered by the significant decline in the revenue generated by online game. For the quarter ended December 31, 2013, this online game only generated revenue amounted to USD 27 thousand as compared to USD 303 thousand for the quarter ended September 30, 2013, which was significantly lower than the Group's expectation. The impairment test was performed using a discounted cash flow analysis that requires certain assumptions and estimates regarding economics and future profitability. As of December 31, 2015, full provision for impairment has been provided for this online game license.

Amortization expense recognized for the years ended December 31, 2013, 2014 and 2015 are summarized as follows:


	Years ended December 31
(In thousands)	2013		2014		2015
Cost of Revenue		1,369		1,141		693
General and administrative expenses		269		372		386
Research and development expenses		—		542		1,589
Total		1,638		2,055		2,668

The estimated aggregate amortization expense for each of the next five years as of December 31, 2015 is:

(In thousands)		Intangible assets
2016		2,234
2017		2,002
2018		1,688
2019		1,321
2020 and thereafter		6,188

The weighted average amortization periods of intangible assets as at December 31, 2014 and 2015 are as below:


(In year)	December 31, 2014		December 31, 2015
Copyrights related to content (i)		2.78		—
Land use right		30		30
Trademarks		7		7
Non-compete agreement		4		4
Technology (including right-to-use)		8		8
Acquired computer software		5		5
Internal use software development costs		5		5
Online game licenses		3		3
Domain name (i)		5		—
Total weighted average amortization periods		3.97		11.08

(i)	Copyrights related to content and domain name are related to the discontinued operation.

Inventories

12 Months Ended

Dec. 31, 2015

Inventories [Abstract]

Deferred revenue and income [Abstract]

10.

Inventories

(In thousands)	December 31, 2014		December 31, 2015
ZQB		—		92
Online shopping mall inventories (note a)		—		229
Others		—		159
Total		—		480

Note a

online shopping mall inventoriesincludeXiaomi TV box, gaming discs etc.

Long-term investments

12 Months Ended

Dec. 31, 2015

Long-term investments [Abstract]

Long-term investments

11.

Long-term investments

	December 31,			December 31,
(In thousands)	2014			2015
Equity method investments:
Balance at beginning of the year		2,785			2,965
Additions		—			—
Share of loss from equity investees		(259	)		(12	)
Dilution gains arising from deemed disposal of investments (ii) (iii)		449			702
Transfer to cost method investments		—			(1,349	)
Exchange differences		(10	)		(144	)
Balance at end of the year		2,965			2,162
Cost method investments:
Balance at beginning of the year		164			2,533
Additions (i)		2,359			6,506
Transfer from equity method investments		—			1,349
Exchange difference		10			(429	)
Less: impairment loss on long-term investments		—			(802	)
Balance at end of the year		2,533			9,157

Total long-term investments		5,498			11,319

Details of the Group's ownership are as follows:


Investee	Percentage of ownership of shares as of December 31,
Investee	2014			2015
Equity method investments:
Zhuhai Qianyou Technology, Co., Ltd. (“Zhuhai Qianyou”),		19.00	%		19.00	%
Guangzhou Yuechuan Network Technology, Co., Ltd. (“Guangzhou Yuechuan”) (ii)		19.13	%		19.13	%
Chengdu Diting Technology, Co., Ltd. (“Chengdu Diting”) (ii)		16.58	%		—
Cost method investments:
Shenzhen Kushiduo Network Science and Technology Co., Ltd. (“Shenzhen Kushiduo”)(i)		10.00	%		12.5	%
Shanghai Guozhi Electronic Technology Co., Ltd. (“Shanghai Guozhi”)		21.00	%		21.00	%
Guangzhou Wucai Information Technology Co., Ltd.(“Guangzhou Wucai”)		10.00	%		10.00	%
Guangzhou Hongsi Network Technology Co., Ltd.(“Guangzhou Hongsi”)		19.90	%		19.90	%
Tianjin Kunzhiyi Network Technology Co., Ltd.(“Tianjin Kunzhiyi”) (iii)		19.99	%		19.99	%
Chengdu Diting Technology, Co., Ltd. (“Chengdu Diting”) (ii)		—			13.27	%
Suzhou Heidisi network technology co., Ltd.("Suzhou Heidisi") (i)		—			19.90	%
Xiamen Diensi network technology co., Ltd.("Xiamen Diensi") (i)		—			15.00	%
Nanjing Qianyi Video information technology co., Ltd.("Nanjing Qianyi") (i)		—			20.00	%
11.2 Capital I, L.P. Ltd. ( "11.2 Capital")(i)		—			2.24	%
Cloudtropy (i)		—			1.13	%

(i)

In 2015, the Group made equity investments in five more unrelated privately-held companies. The shares held by the Group are not in-substance common stock and therefore the Group accounted for these investments according to ASC 320 as equity activities using the cost method. In August 2015, the Group increased investment of USD 39 thousand to purchase 25 thousand shares of Shenzhen Kushiduo. As a result, the Group's ownership interest in Shenzhen Kushiduo increased from 10% to 12.5%.

(ii)

In May of 2014, the Group obtained the right to appoint a director to Chengdu Diting and thus had one out of five seats on the board of directors of this investee. Given the existence of significant influence, the Group started to apply equity method in May 2014 although the Group's ownership interest in Chengdu Diting decreased from 19.9% to 16.58% because Chengdu Diting issued new shares to a third party for a total consideration of RMB 10 million (USD 1,627 thousand). In April of 2015, the new investor of Chengdu Diting injected capital of RMB 39.07 million (USD 6.39 million). As a result of the transaction, the Group 's ownership interest in Chengdu Diting diluted from 16.58% to 13.27%. So the recognition of Chengdu Diting's ownership for the Group transferred from equity method to cost method. The Group recorded a dilution gain of RMB 4.38 million (USD 702 thousand) arising from the sale of shares by the investee to third parties at a price in excess of the per share carrying value of the shares owned by the Group in 2015.

(iii)

In September of 2015, Tianjin Kunzhiyi suffered from financial difficulties and lost most of its core R&D staff. As a result, new games couldn't be promoted as committed in investment agreement with the Group. The Group recognized impairment of RMB 5 million (USD 802 thousand) for ownership interest in Tianjin Kunzhiyi as considered necessary.

Deferred revenue and income

12 Months Ended

Dec. 31, 2015

Deferred revenue and income

12.

Deferred revenue and income


(In thousands)	December 31, 2014			December 31, 2015
Deferred revenue
Membership subscription revenues		27,543			24,502
Online game revenues		1,111			1,120
Pay per view subscription revenues		—			—
Deferred income
Government grants		4,863			4,032
Reimbursement from the depository (i)		1,053			842
Total		34,570			30,496
Less: non-current portion (ii)		(6,825	)		(5,383	)
Deferred revenue and income, current portion		27,745			25,113

(i)	In December of 2014, the Company received from its depositary a reimbursement of USD 1.2 million, net of withholding tax of USD0.3 million. This reimbursement was recognized as deferred income and amortized over the depositary service period of 5 years.

(ii)	As of December 31, 2015, the non-current portion included Membership subscription revenue of USD 719 thousand (2014: USD 1,120 thousand), Government grants of USD 4,032 thousand (2014: USD 4,863 thousand), and Reimbersement from the depositary of USD 632 thousand (2014: 842 thousand).

Accrued liabilities and other payables

12 Months Ended

Dec. 31, 2015

Accrued liabilities and other payables [Abstract]

Redeemable convertible preferred shares [Abstract]

13.

Accrued liabilities and other payables


(In thousands)	December 31, 2014		December 31, 2015
Payroll and welfare		11,800		10,570
Agency commissions and rebates—online advertising		8,017		2,443
Payables for advertisement on exclusive online games		2,515		1,643
Receipts in advance from customers		1,133		—
Tax levies		556		1,605
Payables for purchase of equipment		240		4,999
Legal and litigation related expenses (Note 24)		451		2,601
Professional fees		2,460		908
Staff reimbursements		440		611
Rental expense		382		4
Payables for proceeds from selling exercised stock options		872		177
Advance for exercise of stock options		356		—
Payables for gaming distribution		—		158
Payables to Nesound		—		622
Others		1,111		1,038
Total		30,333		27,379

Cost of revenues

12 Months Ended

Dec. 31, 2015

Cost of revenues [Abstract]

Cost of revenues

14.

Cost of revenues

	Years ended December 31,
Cost of revenue from continuing operations (In thousands)	2013		2014		2015
Bandwidth costs		28,174		33,545		37,218
Content costs, including amortization		1,061		—		338
Payment handling fees		12,097		11,305		9,087
Depreciation of servers and other equipment		3,801		5,102		4,873
Games revenue sharing costs and others (note a)		5,125		5,803		8,518
Total		50,258		55,755		60,034

Note a: gaming revenue share costs and others mainly include gaming sharing costs and cost of ZQB.

Redeemable convertible preferred shares

12 Months Ended

Dec. 31, 2015

Redeemable convertible preferred shares

15.

Redeemable convertible preferred shares

Series D convertible redeemable preferred shares

On January 31, 2012, the Company entered into an agreement to issue Series D preferred shares and warrants to a third-party investor for a total consideration of USD37,500 thousand. Pursuant to the agreement, the company issued 10,580,397 series D preferred shares at USD 3.544 per share; and warrants to purchase 2,218,935 Series D preferred shares at USD 3.38 per share at the option of the holders. In addition, the third-party investor also purchased a total of 5,036,367 existing shares directly from other then existing shareholders and they were entitled to the same rights as attached to the respective classes of existing shares.

The key terms of the Series D preferred shares were as follows:

Dividend rights

The holders of the Series D preferred shares were entitled to participate in any dividend pari passu with common shareholders of the Company on an as-converted basis.

Liquidation preferences

Amount shall be paid to Series D holders before any distribution or payment shall be made to the holders of Series A, Series A-1, Series B and C Preferred Shares. If asset for distribution is insufficient to pay off Series D holders, the assets shall be distributed among the holders of Series D in proportion to the full amounts to which they would otherwise be respectively entitled thereon on an as-converted basis.

Upon issuance of Series E preferred shares, the liquidation preference of Series D preferred shares was amended. Before any distribution or payment shall be made to the Series A, A-1, B and C shareholders (for the purpose of this clause, such holders did not include Skyline Global Company Holdings Limited (‘‘Skyline Holdings'', or ‘‘Series D Investor''), the Series D holder, who also held any Series A, A-1, B and any other Junior Securities) an amount shall be paid with respect to each share held by Skyline Holdings equal to original issue price.

Voting rights

The holders of the Series D preferred shares shall be entitled to such number of votes equal to the whole number of common shares into which such Series D preferred shares are convertible.

Conversion rights

Each share of the Series D preferred shares was convertible at the option of the holder, at any time after the issuance of such shares, and each share can be converted into one common share of the Company. The conversion was subject to adjustments for certain events, including but not limited to additional equity securities issuance, reorganization, mergers, share dividends, distribution, subdivisions, redemptions, combinations, or consolidation of common shares. The conversion price was also subject to adjustment in the event the Company issues additional common shares at a price per share that is less than such conversion price. In such case, the conversion price shall be reduced to adjust for dilution on a weighted average basis.

In addition, each share of the Series D preferred shares would automatically be converted into common shares of the Company (i) upon the closing of an initial public offering of the Company's shares or (ii) upon written notice to convert given to the Company by the holders of a majority of Series D preferred shareholders.

Redemption Right

The Series D preferred shares were redeemable at any time after the 4^th anniversary of the initial closing of February 6, 2012 to request the Company to purchase all Series D preferred shares and shares issuable upon the conversion or exercise of the Series D warrants if an initial public offering is not consummated. This redemption right expires after the 5^th anniversary of the initial closing of the transaction. The redemption price shall be equal to the aggregate amount of price paid at USD3.544, plus all declared but unpaid dividends up to the date of redemption plus interest of 8% per annum compounded annually from the closing of the Series D preferred shares investment(“Initial Closing”) up to and including the date of redemption.

The Company had determined that the Series D preferred shares should be classified as mezzanine equity. The Series D warrant is initially measured at its fair value and the initial carrying value for Series D preference shares is allocated on a residual basis as it was liability classified. The initial carrying value for Series D preference shares was USD 32,481 thousand, and the related capitalized expense was USD2,012 thousand. There were no beneficial conversion features for the Series D preferred shares.

The carrying value of the preferred shares was accreted from its carrying value on the date of issuance to the redemption value using effective interest method from date of issuance to the earliest redemption date. The accretion was recorded against retained earnings, or in the absence of retained earnings, by charging against additional paid-in capital. Once additional paid-in capital had been exhausted, additional charges were recorded by increasing the accumulated deficit. The Company had determined that conversion and redemption features embedded in the Series D convertible redeemable preferred shares were not required to be bifurcated and accounted for as a derivative.

Series D Warrants

The holder of Series D warrants had the right to exercise the warrants at the earlier of (i) 24 months from date of Initial Closing or (ii) automatically exercised immediately prior to the closing of the following transactions: (a) mergers or consolidation of the Company, b) initial public offering, c) transaction in which in excess of 50% of the Company's equity is transferred to any person, d) sale, transfer, lease, assignment conveyance, exchange, mortgage, or other disposition of all or substantially all of the assets of the Company. The warrants were not entitled to dividend rights nor to vote until the warrants were exercised and shares became issuable. Series D warrants was classified as a liability and initially measured at their fair value at USD 3,007 thousand. As of December 31, 2013, the fair value of Series D warrants was USD 2,186 thousand. For the year ended on December 31, 2012 and 2013, the fair value (loss) / gain recorded were USD 710 thousand and USD 1,531 thousand, respectively.

Exchange of Series D warrants and the issuance of Series E warrants

The warrants to purchase 1,952,663 and 266,272 Series D preferred shares at USD3.38 per share expired on February 6, 2014 and March 1, 2014, respectively. On the date of the expiration, the warrant was measured at a fair value of USD2,414 thousand. It was agreed that upon issuance of the Series E preferred shares on March 5, 2014, the Company would issue to the Series D investor warrants to purchase 3,406,824 Series E preferred shares with an exercise price of USD2.82. These warrants are exercisable at the option of the holder, at any time, no later than the earlier of (1) the pricing date of the initial public offering of the Company or (2) March 1, 2015. As the warrants were exercised into mezzanine equity, the warrants are classified as a liability and were initially measured at a fair value of USD2,819 thousand.

Exchange of Series D warrants and the issuance of Series E warrants (Continued)

The exchange of the Series D warrants and the issuance of the Series E warrants were considered to be a related transaction and are accounted for as a single transaction because the holder was willing to allow the Series D warrants to expire in contemplation that they would be issued Series E warrants. A loss of USD405 thousand, which was the difference in value of the Series D warrants on the expiration date and the value of the Series E warrants on the issuance date was charged to the income statement in quarter one of 2014.

The fair value of the Series D warrants and the Series E warrants was estimated by the Company with the assistance of an independent valuation firm based on the Company's estimates and assumptions. The valuation report provided the Group with guidelines in determining the fair value, but the determination was made by the Group. The Group applied the Black-Scholes Option Pricing Model to calculate the fair value of the Series D warrant on the valuation date.

The major assumptions used in calculating the fair value of the Series D warrants include:

	December 31, 2013			February 6, 2014
Spot price⁽¹⁾		4.36			4.47
Risk-free interest rate⁽²⁾		0.05	%		0	%*
Volatility rate⁽³⁾		30.33	%		0	%*
Dividend yield⁽⁴⁾		—			—

Given that the maturity date of Series D warrant was February 6, 2014, the volatility rate and risk-free interest rate did not affect the valuation of the warrant on February 6, 2014.

The major assumptions used in calculating the fair value of the Series E warrants include:

	March 5, 2014
Spot price⁽¹⁾		3.31 - 4.65
Risk-free interest rate⁽²⁾		0.04% - 0.12	%
Volatility rate⁽³⁾		38.39% - 38.81	%
Dividend yield⁽⁴⁾		—

(1)

Spot price – based on the fair value of 100 percent equity interest of the Company which was allocated to preferred shares and common shares of the Company as at the valuation date under different scenarios. For the valuation on March 5, 2014 and March 31, 2014, the probability of the occurrence of an IPO is assumed to be 80%, the probability of the occurrence of a liquidation event is assumed to be 10% and the probability of the occurrence of a redemption event is assumed to be 10%

(2)

Risk-free interest rate – based on the US Treasury Bond & Notes BFV curve from Bloomberg as at the valuation date.

(3)

Volatility – based on the average historical volatility of the comparable companies from Bloomberg as at the valuation date.

(4)

The Company has no history or expectation of paying dividends on its common shares.

Triggering of the anti-dilution clause

Upon issuance of Series E preferred shares in March and April 2014, the Company adjusted the Series D conversion price from USD3.5 to USD2.86 per share for 6,771,454 Series D preferred shares held by the Series D Investor.

The Company concluded that the downward conversion price adjustment is in accordance with the anti-dilution clause in the original Series D financing agreement. As a result of this anti-dilution, the Company would issue a total of 8,391,850 common shares on a fully-converted basis of the original 6,771,454 Series D preferred shares when the conversion right is exercised by the holder. The downward adjustment of the conversion price did not contain a contingent beneficial conversion feature.

For the remaining 3,808,943 Series D preferred shares held by the Series D Investor, the Series D investor agreed to waive the anti-dilution clause as the Series D Investor has planned to sell these shares to the Company upon the issuance of Series E preferred shares in March 2014. The waiver of this anti-dilution clause was accounted for as a modification of the terms of the Series D preferred shares. However, it was determined that the incremental value contributed by the Series D Investor was deemed to be a transfer of value between the preferred shareholders because 1) the change in value of the common shares before and after the modification was deemed to be negligible and 2) the modification of the Series D preferred shares were also made concurrent with the sale of the Series E preferred shares. The Company concluded that this was evidence to suggest that most of the value was transferred from the Series D preferred shareholder to the other existing preferred shareholders. Therefore, no accounting charge was recorded.

Upon the completion of the IPO on 24 June 2014, the Company adjusted the Series D conversion price from USD2.86 to USD2.27 per share relating to 6,771,454 Series D preferred shares held by the Series D Investor. The Company concluded that the downward conversion price adjustment is in accordance with the anti-dilution clause in the latest shareholders agreement. As a result of this anti-dilution, the Company would issue a total of 10,581,726 common shares on a fully-converted basis of the original 6,771,454 Series D preferred shares when the conversion right is exercised by the holder. At the time of this anti-dilution, the Series D preferred shares anti-diluted contained a beneficial conversion feature of USD4,008 thousand as a deemed dividend to Series D Investor and charged against retained earnings, and in the absence of retained earnings, a charge to additional paid-in capital.

Modification of redemption rights

Upon issuance of the Series E preferred shares in March 2014, the Company amended the redemption rights of 6,771,454 Series D preferred shares. The Series D investor shall have the right to request the Company to purchase its shares after February 28, 2017 but no later than February 28, 2018. Prior to the modification, the holder had the right to request the Company to purchase its shares after February 6, 2016 but no later than February 6, 2017. The amendment of the redemption date was accounted for as modification of the terms of Series D preferred shares. The incremental value received by the Series D preferred shareholder amounted to USD279 thousand and was deemed to be a transfer of value between the preferred shareholder and common shareholders and the amount was charged to retained earnings.

In determining the accounting for the modification of the Series D preferred shares, the Company estimated the valuation of the Series D preferred shares with the assistance of an independent valuation firm based on the Company's estimates and assumptions. Option-pricing method was used to allocate enterprise value to preferred and ordinary shares, taking into account the guidance prescribed by the AICPA Audit and Accounting Practice Aid, ‘‘Valuation of Privately-Held Company Equity Securities Issued as Compensation''. The method treats common stock and preferred stock as call options on the enterprise's value, with exercise prices determined based on the liquidation preference of the preferred stock. The option-pricing method involves making estimates of the anticipated timing of a potential liquidity event, such as a sale of the Company or an initial public offering, and estimates of the volatility of the Company's equity securities.

The anticipated timing was based on the plans of management. Estimating the volatility of the share price of a privately held company was complex because there is no readily available market for the shares. The Company estimated the volatility of its shares to range from 38.39% to 43.40% based on the historical volatility of comparable publicly traded shares of companies engaged in similar lines of business.

Modification of liquidation rights

Upon issuance of the Series E preferred shares, the Company amended the liquidation rights of Skyline Holdings' common shares, Series A preferred shares, Series A-1 preferred shares, and Series B preferred shares (collectively, the ‘‘Series D Investor Shares''). As a result of this amendment, the Series D Investor Shares had priority to receive proceeds from the Company upon liquidation over the common shares, Series A preferred shares, Series A-1 preferred shares, Series B preferred shares and Series C preferred shares held by other investors. This right given to the Skyline Holdings was non-transferable to a third party. The amendment of the liquidation rights was accounted for as modification of the terms of Series D Investor Shares. However, the incremental value received by Skyline Holdings is deemed to be negligible. No accounting charge was recorded by the Company. Similar to the modification of the Series D preferred shares as stated above, the fair value of the Series D preferred shares was estimated by the Company with the assistance of an independent valuation firm based on the Company's estimates and assumptions. The Option-pricing method as described above, was also used to account for this modification. The Company estimated the volatility of its shares to range from 38.39% to 43.40% based on the historical volatility of comparable publicly traded shares of companies engaged in similar lines of business.

The Group had determined that there was no beneficial conversion feature attributable to the Series D preferred shares because the initial and adjusted effective conversion prices of these preferred shares were higher than the fair value of the Company's common shares determined by the Group with the assistance from an independent valuation firm.

Initial public offering

Upon the completion of the IPO on 24 June 2014, the Series D Investor did not exercise Series E warrants, and the fair value of Series E warrants was nil. The fair value gain of USD2,922 thousand was recorded for the year ended December 31, 2014 as other income. As a result, 10,581,726 common shares were issued, and the balance of Series D preferred shares was transferred to common shares and additional paid-in capital on that date.

	Years ended December 31,2013		Years ended December 31,2014
Beginning balance		35,990		40,290
Deemed dividend to Series D shareholder from its modification		—		279
Accretion of Series D to convertible redeemable preferred shares redemption value		4,300		1,870
Repurchase of preferred shares		—		(15,003	)
Deemed dividend to preferred shareholders upon IPO		—		4,008
Converted to common shares upon IPO		—		(31,444	)
Ending balance		40,290		—

Series E convertible redeemable preferred shares

On March 5, 2014, the Company entered into an agreement to issue Series E preferred shares (the ‘‘Series E Tranche 1 Preferred Shares'') and warrants to a third-party investor (‘‘Series E Tranche 1 Investor'') for a total consideration of USD 200 million. Pursuant to the agreement, the Company issued 70,975,491 Series E Tranche 1 Preferred Shares at USD 2.82 per share; and warrants to purchase 17,743,873 Series E preferred shares at USD 2.82 per share at the option of the holders. In addition, within 3 months after the closing, the Series E Tranche 1 Investor shall have the right (‘‘Subscription Rights'') to purchase, or designate any other person/party to purchase from the Company an additional 35,487,746 Series E preferred shares, at a price equal to USD 2.82 per share.

The key terms of the Series E preferred shares were as follows:

Dividend rights

The holders of the Series E preferred shares were entitled to participate in any dividend pari passu with common shareholders of the Company on an as-converted basis.

Liquidation preferences

Before any distribution or payment shall be made to the holders of Series A, Series A-1, Series B, Series C and D preferred shares, an amount shall be paid to Series E holders with respect to each Series E preferred share held by the Series E holder equal to 100% of the applicable original issue price.

Voting rights

The holders of the Series E preferred shares shall be entitled to such number of votes equal to the whole number of common shares into which such Series E preferred shares are convertible.

Conversion rights

Each of the Series E preferred shares was convertible at the option of the holder, at any time after the issuance of such shares, and each share could be converted into one common share of the Company. The conversion was subject to adjustments for certain events, including but not limited to additional equity securities issuance, reorganization, mergers, share dividends, distribution, subdivisions, redemptions, combinations, or consolidation of common shares. The conversion price was also subject to adjustment in the event the Company issues additional common shares at a price per share that was less than such conversion price. In such case, the conversion price shall be reduced to adjust for dilution on a weighted average basis.

In addition, each of the Series E preferred shares would automatically be converted into common shares of the Company (i) upon the closing of an initial public offering of the Company's shares or (ii) upon written notice to convert given to the Company by the holders of a majority of Series E preferred shareholders.

Redemption right

The Series E preferred shares were redeemable at the option of the investor any time after March 1, 2018 but not later than March 1, 2019.

The redemption price shall be equal to the aggregate amount of price paid per such share pursuant to the share purchase agreement (i.e. USD 2.82), plus interest on the original issue price applicable to each Series E convertible redeemable preferred share at a rate of 15% per annum compounded annually from the issuance date up to and including the date of redemption, plus all declared but unpaid dividends and distributions on any such Shares; If the Company did not have sufficient funds to redeem all of the redeemable shares, the Company shall redeem a pro rata portion of each holder's redeemable shares out of funds legally available; and redeem the remaining shares as soon as practically after the Company had funds legally available therefor.

The Company had determined that the Series E preferred shares should be classified as mezzanine equity in the unaudited condensed consolidated balance sheets because the preferred shares are only contingently redeemable by the holder four years after the issuance date. The carrying value of the preferred shares is accreted from its carrying value on the date of issuance to the redemption value using the effective interest method from date of issuance to the earliest redemption date. The accretion was recorded against retained earnings, or in the absence of retained earnings, by charging against additional paid-in capital. Once additional paid-in capital has been exhausted, additional charges should be recorded by increasing the accumulated deficit.

The Company assessed beneficial conversion feature attributable to the Series E Tranche 1 Preferred Shares and determined that there was a beneficial conversion feature with an amount of USD52,377 thousand, which was bifurcated from the carrying value of Series E Tranche 1 Preferred Shares as a contribution to additional paid-in capital upon issuance of Series E Tranche 1 Preferred Shares. The discount of USD52,377 thousand resulting from the recognition of the beneficial conversion feature were amortized from the date of the issuance to the first redemption date of the Series E Tranche 1 Preferred Shares as a deemed dividend to preferred shareholders and charged against retained earnings, and in the absence of retained earnings, a charge to additional paid-in capital. The beneficial conversion feature is calculated based on the difference between an adjusted conversion price of USD2.31 and the Company's common share fair value of USD3.05 multiplied by the number of shares into which the preferred shares are convertible into. The conversion price was adjusted from USD2.82 to USD2.31 principally because liability classified instruments, such as the warrants and the subscription rights (see below for further information) were issued with the Series E Tranche 1 Preferred Shares. Since the warrants and the subscription rights are classified as liability, the sales proceeds are first allocated to the warrants and the subscription rights' full fair value (not relative fair value) and the residual amount of the sales process is allocated to the Series E Tranche 1 Preferred Shares to calculate the beneficial conversion feature.

(In thousands)	December 31, 2015
Beginning balance		—
Addition		275,314
Exercise of Series E subsequent sale rights		28,568
BCF upon Series E		(53,486	)
Amortisation of BCF of Series E		4,139
Accretion of Series E to convertible redeemable preferred shares redemption value		12,754
Acceleration of amortization of BCF of Series E upon IPO		49,346
Deemed dividend to preferred shareholders upon IPO		27,396
Converted to common shares upon IPO		(344,031	)
Ending balance		—

Exchange of Series E Tranche 1 Investor options for transfer restrictions

As part of the issuance of the Series E Tranche 1 Preferred Shares, the Series E Tranche 1 Investor and the Company's founders (who are also employees) and two employees (collectively the ‘‘Grantees'') of the Company agreed that (i) Series E Tranche 1 Investor will grant to the Grantees the right to purchase certain number of restricted shares of the Series E Tranche 1 Investor's own shares with a total subscription consideration of not more than USD20 million at a subscription price subscription price per share that reflects the valuation of the Series E Tranche 1 Investor being USD10 billion (the ‘‘Series E Tranche 1 Investor Options''); and (ii) the Grantees agreed to impose a transfer restriction (the ‘‘Transfer Restrictions'') on 39,934,162 common shares, 3,394,564 unvested restricted shares, 180,000 unvested options and 180,000 vested options (the ‘‘Shares'') owned by the Grantees. The Transfer Restrictions prohibit the Grantees from transferring their shares to another person/party until April 24, 2018 or April 24, 2019 as appropriate without the prior written consent of the holders of at least 75% of the Series E Tranche 1 Preferred Shares holders The Series E Tranche 1 Investor Options and the Transfer Restrictions are not tied to the Grantees' future employment with the Company.

The value of the Transfer Restrictions was determined to be significantly greater than the value of Series E Tranche 1 Investor Options. In determining the value of the Transfer Restrictions, the Company was assisted by an independent valuation firm based on data provided by the Company. The valuation of the Transfer Restrictions is estimated to be USD43.3 million (refer to the valuation methodology below). For the valuation of the Series E Tranche 1 Investor Options, the Company was only able to obtain limited financial information from the Series E Tranche 1 Investor, a private company, to perform a valuation analysis. This information includes high level 2013 revenue data and information of a third party investment transaction that valued the Series E Tranche 1 Investor at USD10 billion in August of 2013. Given the lack of financial information, the Company is unable to determine a more precise estimate of the fair value of the Series E Tranche 1 Investor Options on the exchange date. If the fair value of the Series E Tranche 1 Investor Options were worth USD43.3 million, the estimated value of the Transfer Restrictions, the Series E Tranche 1 Investor itself would need to be estimated at a valuation in excess of USD30 billion on March 5, 2014. The Company does not expect the valuation of the Series E Tranche 1 Investor to increase by 200% from USD 10 billion in August 2013 to USD 30 billion in March 2014. Hence, no incremental benefit was given to the Grantees and no compensation expense was recognized.

To determine the fair value of the Transfer Restrictions, the Company valued the common shares with the Transfer Restrictions and compared this value to the value of the common shares without the restriction. The difference was determined to be the value of the Transfer Restrictions. A put option pricing model was used to determine the discount to be applied to the common shares to arrive at the value of common shares with the Transfer Restrictions. Pursuant to that model, the Company used the cost of a put option, which can be used to hedge the price change before a share subject to transfer restriction can be sold, as the basis to determine the discount for transfer restrictions. A put option was used because it incorporates certain company-specific factors, including timing of the expected initial public offering or duration of the Transfer Restriction and the volatility of the share price companies engaged in the same industry.

Series E Warrants

The Series E warrants (‘‘Series E warrants'') granted to the Series E Tranche 1 Investor is exercisable at the option of the Series E Tranche 1 Investor, at any time, on or after January 1, 2015 and no later than March 1, 2015. The warrants are not exercisable if the Company has completed the initial public offering in the United States by December 31, 2014. The exercise price shall be adjusted from time to time as provided below: proportionate adjustment for issuance of additional common shares, share split and combination, dividend and distributions, reclassification, reorganization, merger, and consolidations.

Series E Warrants (Continued)

The warrants are not entitled to dividend rights nor to vote until the warrants are exercised and shares become issuable. The Series E warrants are initially measured at its fair value and the initial carrying value for Series E Tranche 1 Preferred Shares is allocated on a residual basis as the warrant is liability classified. The Series E warrants are initially measured at their fair value of USD 6,477 thousand.

The fair value of the Series E warrants were estimated by the Company with the assistance from an independent valuation firm based on data provided by the Company. The valuation report provided by the Company with guidelines in determining the fair value, but the determination was made by the Company. The Company applied the Black-Scholes Option Pricing Model to calculate the fair value of the Series E warrants on the valuation date.

The major assumptions used in calculating the fair value of the Series E warrants include:

	March 5, 2014
Spot price⁽¹⁾		4.50 - 4.65
Risk-free interest rate⁽²⁾		0.12	%
Volatility rate⁽³⁾		38.81	%
Dividend yield⁽⁴⁾		—

(1)

Spot price – based on the fair value of 100 percent equity interest of the Company which is allocated to preferred shares and common shares of the Company as at the valuation date under different scenarios. For the valuation on March 5, 2014 and March 31, 2014, the probability of the occurrence of an IPO is assumed to be 80%, the probability of the occurrence of a liquidation event is assumed to be 10% and the probability of the occurrence of a redemption event is assumed to be 10% .

(2)

Risk-free interest rate – based on the US Treasury Bond & Notes BFV curve from Bloomberg as at the valuation date.

(3)

Volatility – based on the average historical volatility of the comparable companies from Bloomberg as at the valuation date.

(4)

The Company has no history or expectation of paying dividends on its common shares.

Subscription Rights

Within 3 months after March 5, 2014, the Series E Tranche 1 Investor shall have Subscription Rights to purchase, or designate any other person/party to purchase from the Company an additional number of 35,487,746 Series E preferred shares, at a price equal to the purchase price per share (USD 2.82) of the Series E issuance. The exercise price shall be adjusted from time to time as provided below: proportionate adjustment for issuance of additional common shares, share split and combination, dividend and distributions, reclassification, reorganization, merger, and consolidations. The Subscription Rights are not entitled to dividend rights nor to vote until the Subscription Rights have been exercised and shares are issuable.

On April 24, 2014, two of the three Series E Tranche 2 Investors exercised the Subscription Rights assigned to them by the Series E Tranche 1 Investor to purchase USD100 million while the third Series E Tranche 2 investor purchased the remaining USD10 million. Upon the exercise of the Subscription Rights, the fair value of the warrant liability of USD 29,223 thousand was derecognized and credited to carrying amount of the Series E Tranche 2 Preferred Shares.

Subscription Rights (Continued)

The fair value of the Subscription Rights was estimated by the Company with the assistance from an independent valuation firm based on data provided by the Company. The valuation report provided by the Company with guidelines in determining the fair value, but the determination was made by the Company. The Company applied the Black-Scholes Option Pricing Model to calculate the fair value of the Subscription Rights on the valuation date. The Subscription Rights are initially measured at their fair value of USD 28,208 thousand. As of April 24, 2014, the fair value of Subscription Rights was USD 29,223 thousand.

The major assumptions used in calculating the fair value of the Subscription Rights include:

	March 5, 2014			April 24, 2014
Spot price⁽¹⁾		3.31 - 4.65			3.39 - 4.64
Risk-free interest rate⁽²⁾		0.04	%		0.02	%
Volatility rate⁽³⁾		38.12	%		42.74	%
Dividend yield⁽⁴⁾		—			—

(1)

Spot price – based on the fair value of 100 percent equity interest of the Company which is allocated to preferred shares and common shares of the Company as at the valuation date under different scenarios. The probability of the occurrence of an IPO is assumed to be 80%, the probability of the occurrence of a liquidation event is assumed to be 10% and the probability of the occurrence of a redemption event is assumed to be 10%.

(2)

Risk-free interest rate – based on the US Treasury Bond & Notes BFV curve from Bloomberg as at the valuation date.

(3)

Volatility – based on the average historical volatility of the comparable companies from Bloomberg as at the valuation date.

(4)

The Company has no history or expectation of paying dividends on its common shares.

Issuance of Series E Tranche 2 Preferred Shares

On April 24, 2014, the Company issued Series E convertible redeemable preferred shares (the ‘‘Series E Tranche 2 Preferred Shares'') to three investors (the ‘‘Series E Tranche 2 Investors'') to subscribe 39,037,382 Series E Tranche 2 Preferred Shares for a total consideration of USD110 million.

The Company assessed the beneficial conversion feature attributable to the Series E Tranche 2 Preferred Shares and determined that there was a beneficial conversion feature with an amount of USD1,109 thousand for the Series E Tranche 2 Preferred Shares of USD10 million issued to one investor. For the remaining Series E Tranche 2 Preferred Shares of USD100 million issued to another two investors, there was no beneficial conversion feature attributable to them.

Initial public offering

Upon the completion of the IPO on 24 June 2014, the Company adjusted the Series E conversion price from USD2.82 to USD2.4 per share relating to 110,014,440 Series E preferred shares held by the Series E investors. The Company concluded that the downward conversion price adjustment is in accordance with the anti-dilution clause in the latest shareholders agreement. As a result of this anti-dilution, the Company issued a total of 129,166,667 common shares on a fully-converted basis when the conversion right is exercised by the Series E shareholders. The triggering of the anti-dilution clause resulted in a beneficial conversion feature amounted to USD 27,396 thousand which was charged to retained earnings in 2014 as a deemed dividend to Series E shareholders. And the unamortized beneficial conversion features of Series E preferred shares of USD49,346 thousand were recognized upon the completion of the IPO as a deemed dividend to Series E investors and charged against retained earnings, and in the absence of retained earnings, a charge to additional paid-in capital.

Upon the completion of the IPO on 24 June 2014, the Series E warrants are not exercisable in future. As a result, the fair value of Series E warrants liability of USD6,381 thousand was derecognized and the related fair value gain was recognized as other income.

Convertible preferred shares

12 Months Ended

Dec. 31, 2015

Convertible preferred shares [Abstract]

Convertible preferred shares

16.

Convertible preferred shares

The key terms of the Series A, Series A-1, Series B and Series C preferred shares are as follows:

Dividend rights

The holders of the Series A, Series A-1, Series B and Series C preferred shares are entitled to participate in any dividend pari passu with common shareholders of the Company on an as-converted basis.

Liquidation preferences

In the event of a liquidation, dissolution or winding up of the Company, available assets and funds of the Company are distributed to the holders of the preferred shares in order of 1) Series C and Series B which are grouped as one class for the purpose of liquidation preference, 2) Series A-1 and then 3) Series A, at their respective original issuance price per share plus any declared but unpaid dividends adjusted for share splits, share dividends, recapitalizations, and other adjustments. In the event that available assets and funds are insufficient to permit payment to the holders of the less senior class of preferred shares, the assets and funds will be distributed ratably to that class of preferred shareholders based on their proportional share ownership. After the distribution to the holders of Series C and Series B, Series A-1, Series A preferred shares and common shares are made, any remaining legally available assets and funds shall be distributed to the holders of common shares and Series C and Series B, Series A-1 and Series A preferred shares pro rata on an as-converted basis.

In addition, the following events are deemed liquidation events in which case any proceeds derived from such deemed liquidation events will be distributed in the order discussed above. If no proceeds are derived from such deemed liquidation events, the Series B preferred shareholders shall have the right to require the Company to repurchase all or any of the outstanding Series B preferred shares at the original issue price.

Any consolidation or merger of the Company or other corporate reorganization, in which the shareholders of Company own less than a majority of the voting power of the Company or surviving company, after such consolidation, merger or reorganization

A sale of other disposition of all or substantially all of the assets of the Company or the Group

A transfer or an exclusive licensing of all or substantially all of the intellectual property of the Company

However, all liquidation events or deemed liquidation event have to be approved by a special resolution passed by a duly convened general meeting of the Company, which require presence of a representative from the common shareholders, a representative from Series A-1 preferred shareholders and a representative from Series B preferred shareholders. Accordingly, the Company determined that the deemed liquidation events are within the control of the Company and the Series B preferred shareholders do not have control of the Company. Therefore, the deemed liquidation events do not preclude the Series B preferred shares from being classified within permanent equity.

Voting rights

The holders of the Series A, Series A-1, Series B and Series C preferred shares shall be entitled to such number of votes equal to the whole number of common shares into which such Series A, Series A-1, Series B and Series C preferred shares are convertible.

Conversion rights

Each share of the Series A, Series A-1, Series B and Series C preferred shares is convertible at the option of the holder, at any time after the issuance of such shares, and each share can be converted into one common share of the Company. In addition, each share of the Series A, Series A-1, Series B and Series C preferred shares would automatically be converted into common shares of the Company upon (i) an underwritten public offering of the company's shares on major stock exchanges, including Nasdaq Global Market that results in proceeds to the Company of at least USD 50 million (“QIPO”) or (ii) upon written notice to convert given to the Company by the holders of a majority of such class or series of preferred shares in issue, in each case voting as a separate class on an as converted basis, as applicable.

At the time of issuance, the Series A preferred shares issued to one of the shareholders in 2005 contained a beneficial conversion feature of USD 54 thousand and the amount was charged to retained earnings in 2005 as a deemed dividend.

At the time of anti-dilution, the Series C preferred shares anti-diluted in 2012 contained a beneficial conversion feature of USD 286 thousand and the amount was charged to retained earnings in 2012 as a deemed dividend. There were no beneficial conversion features for the other issuance.

In April, 2011, the Company removed the USD 50 million threshold from the definition of QIPO. The removal of the threshold is not expected to have a significant impact to the financial statements of the Company.

None of the preferred shares are redeemable at the holders' option.

Modification in 2012

Upon issuance of Series D preferred shares in January 2012 as discussed in note 13, the Company adjusted the Series C conversion price from USD5.24 to USD4.14 per share; and obtained an exclusive option to purchase at any time within 12 months after the date of the conversion for all, but not less than all, of Series C preferred shares at the purchase price of USD4.607 per common share. The Series C conversion price could be adjusted for any share dividends, sub-division and consolidation, and unpaid dividend. As a result of this modification, the Company would issue a total of 7,248,293 common shares on a fully-converted basis of the original 5,728,264 Series C preferred shares when the conversion right is exercised by the holder. Other terms of the Series C preferred shares including the original liquidation rights remained unchanged.

The Company concluded that the downward conversion price adjustment from USD 5.24 to USD 5.13 is in accordance with the anti-dilution clause in the original Series C financing agreement. The incremental downward price adjustment from USD 5.13 to USD 4.14 and the right to an exclusive purchase option are accounted for as modifications of the terms of Series C preferred shares. The incremental value contributed by the Series C preferred shareholder amounted to USD 2,905 thousand and was deemed to be a wealth transfer between the preferred shareholder and common shareholders and the amount was charged to additional paid-in capital.

In determining the accounting for the modification of the Series C preferred shares, the Group also relied on, in part, a valuation report retrospectively prepared by an independent valuer based on data provided by the Group. The valuation report provided the Group with guidelines in determining the fair value, but the determination was made by the Group. Option-pricing method was used to allocate enterprise value to preferred and ordinary shares, taking into account the guidance prescribed by the AICPA Audit and Accounting Practice Aid, “Valuation of Privately-Held Company Equity Securities Issued as Compensation”. The method treats common stock and preferred stock as call options on the enterprise's value, with exercise prices determined based on the liquidation preference of the preferred stock.

The option-pricing method involves making estimates of the anticipated timing of a potential liquidity event, such as a sale of the Company or an initial public offering, and estimates of the volatility of the Group's equity securities. The anticipated timing is based on the plans of management. Estimating the volatility of the share price of a privately held company is complex because there is no readily available market for the shares. The Group estimated the volatility of its shares to range from 55.36% to 59.91% based on the historical volatility of comparable publicly traded shares of companies engaged in similar lines of business.

Modification in 2014

In January of 2014, the Company modified the anti-dilution terms relating to 5,613,699 Series C preferred shares held by one investor (‘‘Series C Investor 1''). The modification effectively amended the anti-dilution triggering price from USD4.14 to USD2.81 per share. The incremental downward trigger price adjustment from USD 4.14 to USD 2.81 is accounted for as modifications of the terms of Series C preferred shares. The incremental value contributed by the Series C preferred shareholder was deemed to be a transfer of value between the preferred shareholders because the change in the value of the common shares before and after the modification was deemed to be negligible. The Company concluded that this was evidence to suggest that most of the value was transferred from this Series C preferred shareholder to the other existing preferred shareholders. No accounting charge was recorded by the Company.

Triggering of the anti-dilution clause

Upon issuance of Series E preferred shares in March and April 2014, the Company adjusted the Series C conversion price from USD4.14 to USD3.64 and from USD3.64 to USD3.63 per share relating to 114,565 Series C preferred shares held by one investor (‘‘Series C Investor 2''), respectively. The Company concluded that the downward conversion price adjustment is in accordance with the anti-dilution clause in the original Series C financing agreement. As a result of this anti-dilution, the Company would issue a total of 165,236 common shares on a fully-converted basis of the original 114,565 Series C preferred shares when the conversion right is exercised by the holder. At the time of this anti-dilution, the Series C preferred shares anti-diluted in 2014 contained a beneficial conversion feature of USD 58 thousand and the amount was charged to retained earnings in 2014 as a deemed dividend. The issuance of the Series E Tranche 1 Preferred Shares did not triggered the anti-dilution term of Series C Investor 1 as their shares were modified as described above.

Upon the completion of the IPO on 24 June 2014, the Company adjusted the Series C conversion price from USD4.14 to USD3.89 and from USD3.63 to USD3.45 per share relating to 5,613,699 Series C preferred shares held by Series C Investor 1 and 114,565 Series C preferred shares held by Series C Investor 2, respectively. The Company concluded that the downward conversion price adjustment is in accordance with the anti-dilution clause in the latest shareholders agreement. As a result of this anti-dilution, the Company issued a total of 7,724,419 common shares on a fully-converted basis when the conversion right is exercised by the Series C shareholders. The triggering of the anti-dilution clause resulted in a beneficial conversion feature amounted to USD 1,403 thousand as a deemed dividend to Series C shareholders and charged against retained earnings, and in the absence of retained earnings, a charge to additional paid-in capital.

As a result, 96,024,567 common shares were issued, and the balance of Series A, Series A-1, Series B and Series C preferred shares was transferred to common shares and additional paid-in capital on the same date.

Common shares

12 Months Ended

Dec. 31, 2015

Common shares [Abstract]

Common shares

17.

Common shares

The Company's Memorandum and Articles of Association authorizes the Company to issue 1,000,000,000 shares of USD0.00025 par value per common share as of December 31, 2015. Each common share is entitled to one vote. The holders of common shares are also entitled to receive dividends whenever funds are legally available and when declared by the Board of Directors, which is subject to the approval by the holders of the common shares representing a majority of the aggregate voting power of all outstanding shares. As of December 31, 2014 and 2015, there were 327,611,487 and 339,319,115 common shares outstanding, respectively.

Basic and diluted net (loss) / income per share [Abstract]

The entire disclosure for shareholders' equity comprised of portions attributable to the parent entity and noncontrolling interest, including other comprehensive income. Includes, but is not limited to, balances of common stock, preferred stock, additional paid-in capital, other capital and retained earnings, accumulated balance for each classification of other comprehensive income and amount of comprehensive income.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 235
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.4-08.(d),(e))
-URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-SubTopic 10
-Section 50
-Paragraph 4
-URI http://asc.fasb.org/extlink&oid=6928386&loc=d3e21484-112644

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section S99
-Paragraph 2
-Subparagraph (SAB TOPIC 4.E)
-URI http://asc.fasb.org/extlink&oid=27010918&loc=d3e74512-122707

Reference 4: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-SubTopic 10
-Section 50
-Paragraph 5
-URI http://asc.fasb.org/extlink&oid=6928386&loc=d3e21488-112644

Reference 5: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.29-31)
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

Reference 6: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-SubTopic 10
-Section S99
-Paragraph 4
-Subparagraph (SAB TOPIC 4.C)
-URI http://asc.fasb.org/extlink&oid=27012166&loc=d3e187143-122770

Reference 7: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-SubTopic 10
-Section 50
-Paragraph 6
-URI http://asc.fasb.org/extlink&oid=6928386&loc=d3e21506-112644

Reference 8: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.3-04)
-URI http://asc.fasb.org/extlink&oid=27012166&loc=d3e187085-122770

Reference 9: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-SubTopic 30
-Section 50
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=6405834&loc=d3e23285-112656

Reference 10: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-SubTopic 10
-Section 50
-Paragraph 3
-URI http://asc.fasb.org/extlink&oid=6928386&loc=d3e21475-112644

Reference 11: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Glossary Preferred Stock
-URI http://asc.fasb.org/extlink&oid=6521494

Reference 12: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-SubTopic 10
-Section 50
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=6928386&loc=d3e21463-112644

Reference 13: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-SubTopic 10
-Section 50
-Paragraph 11
-URI http://asc.fasb.org/extlink&oid=6928386&loc=d3e21564-112644

Reference 14: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Staff Accounting Bulletin (SAB)
-Number Topic 4
-Section E

Reference 15: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Staff Accounting Bulletin (SAB)
-Number Topic 4
-Section C

+ Details

Repurchase of shares

12 Months Ended

Dec. 31, 2015

Repurchase of shares [Abstract]

Repurchase of shares

18.

Repurchase of shares

The following table is a summary of the shares repurchased by the Company during 2015 under the Repurchase Program. No shares were repurchased during 2015 except during the month indicated and all shares were purchased through privately negotiated transactions as a mean of exercising share options from Xunlei's employees pursuant to the Repurchase Program (in thousands, except per share and per ADS amounts):

Periods	Total Number of ADS Purchased		Average Price Paid Per ADS		Total Number of ADSs Purchased as Part of the Publicly Announced Plan		Approximate Dollar Value of ADSs that May Yet Be Purchased Under the Plan(note b)
March 12 - March 31 (note a)		192,803		6.44		192,803		2,814,715
April 7 – April 7		1,000		6.65		1,000		2,813,715
September 29 – September 30		2,940		7.13		2,940		2,810,775
December 18 – December 30		16,876		6.94		16,876		2,793,899
Total		213,619		—		213,619		2,793,899

Note a

In December 2014, our board of directors authorized a share repurchase program, or the Repurchase Program, whereby our company may repurchase up to US$20 million of our common shares or ADSs from December 22, 2014 to December 31, 2015. The share repurchases may be made in accordance with applicable laws and regulations through open market transactions, privately negotiated transactions or other legally permissible means as determined by our management, including through Rule 10b5-1 share repurchase plans. We publicly announced the Repurchase Program on December 22, 2014.

Note b

Due to the expiration of the Repurchase Program, such amount is no longer available for repurchase after December 31, 2015.

Note c

In January 2016, our board of directors authorized a second share repurchase program, whereby our company may repurchase up to US$20 million of our common shares or ADSs from January 27, 2016 to December 31, 2016 through the same means as the Repurchase Program.

Non-controlling interest

12 Months Ended

Dec. 31, 2015

Non-controlling interest [Abstract]

Non-controlling interest

19.

Non-controlling interest

Non-controlling interest includes the interest owned by a shareholder of the Company in a subsidiary of the consolidated VIE.

In February 2010, Shenzhen Xunlei set up a new subsidiary named Xunlei Games Development (Shenzhen) Co., Ltd (“Xunlei Games”) and holds 70% of its equity interest. A shareholder of the Company contributed RMB 3,000 thousand (equivalent to USD439 thousand) and holds 30% equity interest in Xunlei Games, which was accounted for as a non-controlling interest of the Group.

Share-based compensation

12 Months Ended

Dec. 31, 2015

Share-based compensation [Abstract]

Share-based compensation

20.

Share-based compensation

2010 share incentive plan

During the years presented, the Company granted share options to employees, officers and directors of the Group.

These options were granted with exercise prices denominated in the USD, which is the functional currency of the Company. The maximum term of any issued stock option is seven or ten years from the grant date. Stock options granted to employees and officers vest over a four-year schedule as stated below:

(1)	One-fourth of the options shall be vested upon the first anniversary of the grant date;

(2)	The remaining three quarters of the options shall be vested on monthly basis over the next thirty-six months. (¹/₄₈ of options shall be vested per month subsequently)

Stock options granted to directors were subject to a vesting schedule of approximately 32 months.

All share-based payments to employees are measured based on their grant-date fair values. Compensation expense is recognized on a straight-line basis over the requisite service period.

In December 2010, the Group adopted a share incentive plan, which is referred to as the 2010 Share Option Plan (“the 2010 Plan”). The purpose of the plan is to attract and retain the best available personnel by linking the personal interests of the members of the board, employees, and consultants to the success of the Group's business and by providing such individuals with an incentive for outstanding performance to generate superior returns for our shareholders. Under the 2010 Plan, the maximum number of shares in respect of which options, restricted shares, or restricted share units may be granted is 26,822,828 shares (excluding the share options previously granted to the directors who are the founders of the Company). The amount of shares available for such grants as of December 31, 2015 is 5,847,465.

On June 11, 2014, our board of directors decided to extended the contractual life for certain vested share options to June 11, 2015, because the maturity date of these options was from June to December in 2014, whereas, the lock-up period for the shares was 6 months from the IPO closing date, i.e. June 24, 2014, which would result in the expiration of these options before the exercise. The incremental share-based compensation of USD768 thousand is recognized at the time of modification.

In the business combination of personal cloud storage business completed on September 5, 2014, the Group granted share options under the 2010 Plan to replace the unvested awards owned by the employees who are transferred to the Group, the portion of the fair-value-based measure of the replacement award attribute to pre-combination service of USD 303 thousand was allocated to the consideration, while the portion attribute to post-combination service of USD44 thousand was recorded as share based compensation expense over the remaining vesting period.

On December 1, 2014, our board of directors approved the conversion of certain vested and unvested share options with relatively high exercise price into restricted shares. In this conversion, 3,776,711 share options were cancelled and 1,505,787 restricted shares were granted. The incremental share-based compensation of USD 2,214 thousand is recorded over the remaining vesting period of 2 to 4.5 years.

In November 2014, the Company issued to a depositary bank for American Depositary Shares, 10,000,000 common shares, which were reserved for the future exercise of share options or vesting of restricted shares.

The following table summarizes the share option activity for the years ended December 31, 2013, 2014 and 2015:


	Number of share options			Weighted average exercise price (USD)		Weighted- average grant-date fair value (USD)		Weighted average remaining contractual life (years)		Aggregate intrinsic value (in thousands)
Outstanding, December 31, 2012		20,222,662			1.30				2.82		40,788
Granted		1,076,761			3.33		1.27
Forfeited		(326,647	)		3.32
Outstanding, December 31, 2013		20,972,776			1.37		—		2.03		39,420
Vested and expected to vest at December 31, 2013		20,701,286			1.32		0.40		1.89		41,014
Exercisable at December 31, 2013		19,382,156			1.17		0.31		1.67		40,771
Granted		1,566,381			3.23		1.01
Forfeited		(371,989	)		3.96
Expired		(1,116,531	)		0.26
Converted to restricted shares		(3,776,711	)		3.14
Exercised		(7,333,641	)		0.18
Outstanding, December 31, 2014		9,940,285			1.88				1.95		3,067
Vested and expected to vest at December 31, 2014		9,642,307			1.86		0.49		1.87		3,057
Exercisable at December 31, 2014		9,129,958			1.81		0.41		1.49		3,042
Granted		561,705			0.88		0.76
Forfeited		(1,494,922	)		3.22
Expired		(3,606,304	)		1.78
Converted to restricted shares		(80,000	)		2.40
Exercised		(3,189,944	)		0.25				4.46		556
Outstanding, December 31, 2015		2,130,820			2.13
Vested and expected to vest at December 31, 2015		1,008,645			1.76		0.73		4.62		464
Exercisable at December 31, 2015		1,430,870			2.16		0.86		4.03		406

A summary of the restricted shares activities under the 2010 Plan for the years ended December 31, 2015 is presented below:


	Number of restricted shares			Weighted-Average Grant-Date Fair Value
Unvested at January 1, 2014:		—
Converted from share options		1,505,787			1.71
Vested		—
Forfeited		—
Unvested at January 1, 2015:		1,505,787
Converted from share options		80,000			1.71
Vested		(390,560	)
Forfeited		(763,010	)
Unvested at December 31, 2015		432,217
Vested and expected to vest at December 31, 2015		367,384

Forfeitures are estimated at the time of grant. If necessary, forfeitures are revised in subsequent periods if actual forfeitures differ from those estimates. Based upon the Company's historical and expected forfeitures for stock options granted, the directors of the Company estimated that its future forfeiture rate would be 20% for employees and nil for directors and advisors.

The aggregate intrinsic value in the table above represents the difference between the estimated fair value of the Company's common shares as of December 31, 2014 and 2015 and the exercise price.

Total fair values of share options vested as of December 31, 2014 and 2015 were USD 7,923 thousand and USD 6,297 thousand, respectively.

As of December 31, 2014 and 2015, there were USD 1,462 thousand and USD 1,147 thousand of unrecognized share-based compensation costs related to share options, which were expected to be recognized over a weighted-average vesting period of 2.84 and 4.03 years, respectively. To the extent the actual forfeiture rate is different from the Company's estimate, the actual share-based compensation related to these awards may be different from the expectation.

The Black-Scholes option pricing model is used to determine the fair value of the stock options granted to employees. The fair values of stock options granted during the years ended December 31, 2013, 2014 and 2015 were estimated using the following assumptions:

Options granted to employees


Years ended December 31,	2013	2014	2015
Risk-free interest rate(1)	0.77% to 1.76%	0.77% to 1.76%	0.77% to 1.76%
Dividend yield(2)	—	—	—
Volatility rate(3)	43.8% to 51.3%	40.07% to 43.3%	40.07% to 43.3%
Expected term (in years)(4)	4.58	4.13 to 4.58	4.07 to 5.57

(1)	The risk-free interest rate of periods within the contractual life of the share option is based on the USD denominated China Government Bond yield as at the valuation dates.

(2)	The Company has no history or expectation of paying dividends on its common shares.

(3)	Expected volatility is estimated based on the average of historical volatilities of the comparable companies in the same industry as at the valuation dates.

(4)	The expected term is developed by assuming the share options will be exercised in the middle point between the vesting dates and maturity dates.

2013 share incentive plan

In November 2013, the Group adopted a share incentive plan, which is referred to as the 2013 Share Incentive Plan (“the 2013 Plan”). The purpose of the plan is to motivate, attract and retain the best available personnel by linking the personal interests of senior management to the success of the Group's business. The Group appointed Leading Advice Holdings Limited (“Leading Advice”), a BVI company owned by the Group's chairman and chief executive officer for no consideration, to administer the plan and as the Administrator. Leading Advice has no activities other than administering the plan and does not have employees. The Group has considered whether Leading Advice is a variable interest entity and, if so, whether the Group is the primary beneficiary. The Group concluded that it is not the primary beneficiary of Leading Advice.

On behalf of the Group, the Administrator has the authority to select the eligible participants to whom awards will be granted: determine the types of awards and the number of shares covered: establish the terms, conditions and provisions of such awards; cancel or suspend awards; and, under certain conditions to accelerate the exercisability of awards. The Administrator is authorized to interpret the 2013 Plan; to establish, amend, and rescind any rules and regulations relating to the 2013 Plan; to determine the terms of agreements entered into with recipients under the 2013 Plan; and, to make all other determinations that may be necessary or advisable for the administration of the 2013 Plan. In the event of any disagreement between the Group and Leading Advice, the Group's decision shall be final and binding.

In November 2013, the Company issued 9,073,732 common shares to Leading Advice. Although the shares were legally issued to Leading Advice, Leading Advice does not have any of the rights of a typical common share holder. Leading Advice 1) is not entitled to dividends 2) does not have the right to vote prior to vesting and 3) does not have the right to sell the unvested portion of the awards or awards that have not been granted. In addition, upon 1) the liquidation of Leading Advice 2) the dissolution of Leading Advice and 3) the expiration of the 2013 Plan, common shares not granted as awards shall be transferred back to the Group at no consideration. Given the structure of this arrangement, while the common shares have been legally issued, the common shares issued to Leading Advice do not have the attributes of unrestricted, issued and outstanding shares. Therefore, the 9,073,732 common shares issued to Leading Advice are accounted as treasury shares until these common shares are earned by the senior management or employees for service provided to the Group.

For the awards that have been granted and become vested, Leading Advice held shares for the grantees' benefit and exercise the voting rights on their behalf. The grantees will be entitled to dividends and have the right to request Leading Advice to transfer vested award to a transferee designated by the grantees. Shares that have been granted and vested continued to be held by and voting rights exercised by Leading Advice on behalf of the grantee at the closing of a QIPO.

Before the closing of a QIPO, the Company would have a “right of first refusal” with respect to any proposed transfer of vested restricted shares. After the closing of a QIPO, vested restricted shares may not be sold or transferred for a period of six months or a period of time determined by the underwriter (the ‘‘lock up period''). If the grantee terminates its employment prior to the closing date of a QIPO and a trade sale, the Group would have the right to acquire the vested restricted shares from the senior officer at a market price as determined by third-party valuation experts.

Upon the closing of IPO, the administrator of the 2013 Plan was changed from Leading Advice to the Company's compensation committee.

Under the 2013 Plan, the maximum number of restricted shares that may be granted is 9,073,732 shares.

As of December 31, 2015, 7,987,435 restricted shares were granted to a few senior officers.

(1)	6,209,809 of these restricted shares will vest over a four-year schedule in which one-fourth of the restricted shares shall be vested upon the first, second, third, and fourth anniversary of the grant date, respectively.

(2)	1,037,894 of these restricted shares will vest over a five-year schedule in which one-fifth of the restricted shares shall be vested upon the first, second, third, fourth and fifth anniversary of the grant date, respectively.

(3)	The remaining 649,732 restricted shares granted will vest over a three-year schedule in equal instalments on a monthly basis over a thirty-six month vesting period.

A summary of the restricted shares activities under the 2013 Plan for the years ended December 31, 2013, 2014 and 2015 is presented below:


	Number of restricted shares			Weighted-Average Grant-Date Fair Value
Unvested at January 1, 2014:		8,095,238
Granted		4,233,558			2.89
Vested		(1,563,222	)
Forfeited		(3,564,796	)
Unvested at December 31, 2014		7,200,778
Vested		(2,627,815	)
Forfeited		(776,565	)
Unvested at December 31, 2015		3,796,398
Vested and expected to vest at December 31, 2015		3,226,939

Forfeitures are estimated at the time of grant. If necessary, forfeitures are revised in subsequent periods if actual forfeitures differ from those estimates.

All restricted shares granted to senior officers are measured based on their grant-date fair values. Compensation expense is recognized on a straight-line basis over the requisite service period. As of December 31, 2015, total unrecognized compensation expense relating to the restricted shares was USD 13,866 thousand. No restricted shares were issued to non-employees.

2014 share incentive plan

In April 2014, the Group adopted a share incentive plan, which is referred to as the 2014 Share Incentive Plan (“the 2014 Plan”). The purpose of the plan is to motivate, attract and retain the best available personnel by linking the personal interests of senior management to the success of the Group's business. Under the 2014 Plan, the maximum number of restricted shares that may be granted is 14,195,412 shares to certain officers, directors or employees of, or advisors or consultants to the Company and its subsidiaries and consolidated affiliated entities. The company issued 14,195,412 common shares to Leading Advice, a company owned by the Group's chairman and chief executive officer. The issuance of common shares was to facilitate the administration of the 2014 plan. The 2014 Plan was administered by the Company's compensation committee.

As of December 31, 2015, 6,620,500 restricted shares were granted to certain officers and employees of the Group:

(1)	5,270,500 of these restricted shares will vest over a five-year schedule in which one-fifth of the restricted shares shall be vested upon the first, second, third, fourth and fifth anniversary of the grant date, respectively.

(2)	The remaining 1,350,000 restricted shares will vest over a four-year schedule in which one-fourth of the restricted shares shall be vested upon the first, second, third and fourth anniversary of the grant date, respectively.

A summary of the restricted shares activities under the 2014 Plan for the years ended December 31, 2015 is presented below:


	Number of restricted shares			Weighted-Average Grant-Date Fair Value
Unvested at January 1,2014		—
Granted		3,896,500			1.77
Unvested at January 1, 2015		3,896,500
Granted		3,890,500			1.53
Vested		(859,100	)
Forfeited		(1,166,500	)
Unvested at December 31, 2015		5,761,400
Vested and expected to vest at December 31, 2015		4,897,100

Forfeitures are estimated at the time of grant. If necessary, forfeitures are revised in subsequent periods if actual forfeitures differ from those estimates.

All restricted shares granted are measured based on their grant-date fair values. Compensation expense is recognized on a straight-line basis over the requisite service period. As of December 31, 2015, the total unrecognized compensation expense relating to the restricted shares was USD 9,683 thousand. No restricted shares were issued to non-employees.

Total compensation costs recognized for the years ended December 31, 2013, 2014and 2015 are as follows:


	Years ended December 31,
(In thousands)	2013		2014		2015
Sales and marketing expenses		43		66		131
General and administrative expenses		1,080		6,407		6,701
Research and development expenses		973		1,171		2,896
Total		2,096		7,644		9,728

Basic and diluted net income / (loss) per share

12 Months Ended

Dec. 31, 2015

Basic and diluted net (loss) / income per share

21.

Basic and diluted net income/ (loss) per share

Basic and diluted net income/ (loss) per share for the years ended December 31, 2013, 2014 and 2015 are calculated as follows:

(Amounts expressed in thousands of United States dollars (“USD”), except for number of shares and per share data)	Years ended December 31,
	2013			2014			2015
Numerator:
Net income/(loss) from continuing operations		22,951			28,269			(2,370	)
Net loss from discontinued operations		(12,572	)		(18,407	)		(12,096	)
Net income / (loss)		10,379			9,862			(14,466	)
Less: Net (loss) attributable to the non-controlling interest		(283	)		(950	)		(1,299	)
Net income/(loss) attributable to Xunlei Limited		10,662			10,812			(13,167	)
Accretion of Series D to convertible redeemable preferred shares redemption value		(4,300	)		(1,870	)		—
Contingent beneficial conversion feature of series C to one Series C shareholder		—			(57	)		—
Deemed dividend to Series D shareholder from its modification		—			(279	)		—
Accretion of Series E to convertible redeemable preferred shares redemption value		—			(12,754	)		—
Amortization of beneficial conversion feature of Series E		—			(4,139	)		—
Deemed dividend to certain shareholders from repurchase of shares		—			(14,926	)		—
Acceleration of amortization of beneficial conversion feature of Series E upon initial public offering		—			(49,346	)		—
Deemed dividend to preferred shareholders upon IPO		—			(32,807	)		—
Allocation of net income to participating preferred shareholders		(4,094	)		—			—
Net income/(loss) attributable to Xunlei Limited's common shareholders		2,268			(105,366	)		(13,167	)
Numerator of basic net income/(loss) per share from continuing operations		14,840			(86,959	)		(1,071	)
Numerator of basic net loss per share from discontinued operations		(12,572	)		(18,407	)		(12,096	)
Dilutive effect of warrant		(1,531	)		—			—
Numerator for diluted income/(loss) per share from continuing operations		13,309			(86,959	)		(1,071	)
Numerator for diluted loss per share from discontinued operations		(12,572	)		(18,407	)		(12,096	)
Denominator:
Denominator for basic net income/(loss) per share-weighted average shares outstanding		61,447,372			194,711,227			335,987,595
Dilutive effect of warrants		2,218,935			—			—
Dilutive effect of share options and restricted shares		12,399,591			—			—
Denominator for diluted net income/(loss) per share		76,065,898			194,711,227			335,987,595
Basic net income/(loss) per share from continuing operations		0.24			(0.45	)		(0.00	)
Basic net loss per share from discontinued operations		(0.20	)		(0.09	)		(0.04	)
Diluted net income/(loss) per share from continuing operations		0.18			(0.45	)		(0.00	)
Diluted net loss per share from discontinued operations		(0.17	)		(0.09	)		(0.04	)

The following common shares equivalents were excluded from the computation of diluted net income per common share for the periods presented because including them would have had an anti-dilutive effect:


	Years ended December 31,
	2013		2014		2015
Preferred shares—weighted average		110,953,534		93,213,683		—
Share options and restricted shares —weighted average		2,513,017		9,041,434		1,673,342

Related party transactions

12 Months Ended

Dec. 31, 2015

Related party transactions

22.

Related party transactions

The table below sets forth the related parties and their relationships with the Group:


Related Party		Relationship with the Group
Zhuhai Qianyou		Equity investment of the Group
Hao Cheng		Co-founder and shareholder of the Group
Chuan Wang		Director of the Company
Shenglong Zou		Co-founder and shareholder of the Group
Beijing Millet technology Co., LTD (“Beijing Xiaomi”)		Company owned by a shareholder of the Group
Leading Advice Holdings Limited		Company owned by a Co-founder and shareholder of the Group
Vantage Point Global Limited		Shareholder of the Company
Aiden & Lasmine Limited		Shareholder of the Company
Kingsoft Corporation Limited		Shareholder of the Company

During the years ended December 31, 2013, 2014 and 2015, significant related party transactions were as follows:


	Years ended December 31,
(In thousands)	2013		2014		2015
Game sharing costs paid and payable to Zhuhai Qianyou (note a)		1,760		402		127
Advance to Hao Cheng		85		—		—
Repayment from Hao Cheng		—		85		—
Technology service revenue from Beijing Xiaomi		—		303		344
Advertisement revenue from Beijing Xiaomi		—		871		—
Advance to Shenglong Zou		—		10		—
Advance to Chuan Wang		—		7		—
Accrued to Aiden & Jasmine Limited (note b)		—		1,125		54
Accrued to Vantage Point Global Limited (note b)		—		3,012		146

note a – The Company obtained an exclusive game operation right from Zhuhai Qianyou, which is specialized in developing online games. According to the agreement, the Company will share revenues derived by the licensed games with Zhuhai Qianyou.

note b – In 2014, the Group repurchased 3,860,733 common shares from Aiden & Jasmine Limited (Co founder's company) for USD10,879 thousand and 10,334,679 common shares from Vantage Point Global Limited (Founder's company) for USD29,121 thousand. According to the repurchase contract, the Company was entitled to an amount (the “Withheld Price”) to withhold any taxes with respect to this repurchase as required under the applicable laws. If the Seller has not been specifically required by the applicable governmental or regulatory authority to pay any taxes as required under the applicable laws in connection with the repurchase, after the fifth anniversary of the Closing Date, the Company will pay to the Seller the Withheld Price with a simple interest thereon at the rate of five percent (5%) per annum (the “repayment price”) from the Closing Date. Therefore, the Withheld Price for Aiden & Jasmine Limited and Vantage Point Global Limited was USD 1,125 thousand (including interest of USD 37 thousand) and USD 3,012 thousand (including interest of USD 100 thousand) respectively. The interest accrued in 2015 was USD 54 thousand and 146 thousand for Aiden & Lasmine Limited and Vantage Point Global Limited respectively.

As of December 31, 2013, 2014 and 2015, the amounts due to / from related parties were as follows:


(In thousands)	December 31, 2013		December 31, 2014		December 31, 2015
Amounts due to related parties
Accounts payable to Zhuhai Qianyou		225		84		38
Long-term payable to Aiden & Lasmine Limited (note 16)		—		1,125		1,179
Long-term payable to Vantage Point Global Limited (note 16)		—		3,012		3,158

(In thousands)	December 31, 2013		December 31, 2014		December 31, 2015
Amounts due from related parties
Accounts receivable from Beijing Xiaomi		—		5		30
Other receivable from Hao Cheng		85		—		—
Other receivable from Shenglong Zou		—		10		9
Other receivable from Chuan Wang		—		7		6

The entire disclosure for related party transactions. Examples of related party transactions include transactions between (a) a parent company and its subsidiary; (b) subsidiaries of a common parent; (c) and entity and its principal owners; and (d) affiliates.

Taxation

12 Months Ended

Dec. 31, 2015

Taxation [Abstract]

Taxation

23.

Taxation

(i)	Cayman Islands

Under the current laws of the Cayman Islands, the Company is not subject to tax on income or capital gains. Additionally, upon payment of dividends by the Company to its shareholders, no Cayman Islands withholding tax will be imposed.

(ii)	PRC Enterprise Income Tax (“EIT”)

Giganology Shenzhen, the VIE and its subsidiaries which were established in the Shenzhen Special Economic Zone of the PRC were all subject to EIT at a rate of 15% before 2008. On March 16, 2007, the PRC National People's Congress promulgated the New Enterprise Income Tax Law (the ”New EIT Law”), which became effective on January 1, 2008, adopting a unified EIT rate of 25%. In addition, the New EIT Law also provides a five-year transitional period starting from its effective date for those enterprises that were established before the date of promulgation of the New EIT Law and that were entitled to preferential income tax rates under the then effective tax laws or regulations. On December 26, 2007, the State Council issued the “Circular to Implementation of the Transitional Preferential Policies for the Enterprise Income Tax”. Pursuant to this Circular, the transitional income tax rates for enterprises established in the Shenzhen Special Economic Zone before March 16, 2007 were 18%, 20%, 22%, 24% and 25% for 2008, 2009, 2010, 2011 and 2012, respectively. Thus, the applicable EIT rate for Giganology Shenzhen, the VIE and its subsidiaries, which were established in the Shenzhen Special Economic Zone before March 16, 2007, was 25%, 25% and 25% for the years 2013, 2014 and 2015, respectively.

As approved by the local tax authority, Giganology Shenzhen was further exempt from EIT for two years commencing from its first year of profitable operation after offsetting prior years' tax losses, followed by a 50% reduction for the next three years (“2-year Exemption and 3-year 50% Reduction”) as a software enterprise. The first year of profit operation of Giganology Shenzhen was 2006. According to new EIT Law, Giganology Shenzhen could still enjoy the tax holidays which were grandfathered by the New EIT Law.

Accordingly, the applicable EIT rates for Giganology Shenzhen were 25%, 25% and 25% for the years ended December 31, 2013, 2014 and 2015, respectively.

On April 14, 2008, relevant governmental regulatory authorities released further qualification criteria, application procedures and assessment processes for meeting the High and New Technology Enterprise (“HNTE”) status under the New EIT Law which would entitle qualified and approved entities to a favorable statutory tax rate of 15%.

In April 2009, the State Administration for Taxation (“SAT”) issued Circular Guoshuihan [2009] No. 203 (“Circular 203”) stipulating that entities which qualified for the HNTE status should apply with in-charge tax authorities to enjoy the reduced EIT rate of 15% provided under the New EIT Law starting from the year when the new HNTE certificate becomes effective. In addition, an entity which qualified for the HNTE status can continue to enjoy its remaining tax holiday from January 1, 2008 provided that it has obtained the HNTE certificate according to the new recognition criteria set by the New EIT Law and the relevant regulations.

In February 2011, Shenzhen Xunlei obtained the HNTE certificate with effect from January 1, 2011.

According to a policy promulgated by the State tax bureau of the PRC and effective from 2008 onwards, enterprises engage in research and development activities are entitled to claim 150% of the research and development expenses so incurred in a year as tax deductible expenses in determining its tax assessable profits for that year (“Super Deduction”). Shenzhen Xunlei has been claiming such Super Deduction in ascertaining its tax assessable profits from 2009 onwards. In addition, approved by the relevant local tax authority in July 2010, Shenzhen Xunlei was recognized as an enterprise engaged in software development activities, accordingly, it is entitled to a tax holiday of 2-year Exemption and 3-year 50% Reduction from 2010 onwards.

In December 2013, Shenzhen Xunlei obtained the certificate of Key Software Enterprise for the years ended December 31, 2013 and 2014, which enabled Shenzhen Xunlei to enjoy the preferential tax rate of 10% for the years 2013 and 2014. In 2015, Shenzhen Xunlei obtained the certificate of the Hi-Tech Enterprise for the years ended December 31, 2015, 2016 and 2017, which enables Shenzhen Xunlei to enjoy the preferential tax rate of 15% for the years of 2015, 2016 and 2017. As a result, the applicable tax rate of Shenzhen Xunlei for the years ended December 31, 2013, 2014 and 2015 were 10%, 10% and 15% respectively.

The subsidiaries and VIE's subsidiaries, which were established after January 1, 2008, were subject to EIT at a rate of 25%.

Xunlei Computer was established in 2011 in the Shenzhen Special Economic Zone, the PRC. As approved by the relevant tax authority in June 2013, Xunlei Computer was further exempted from EIT for two years commencing from its first year of profitable operation after offsetting prior years' tax losses, followed by a 50% reduction for the next three years (“2-year Exemption and 3-year 50% Reduction”). The first year of profit operation of Xunlei Computer is 2013.

Shenzhen Onething was established in 2013 in the Shenzhen Special Economic Zone, the PRC. In 2015, Shenzhen Onething filed for the Qianhai Enterprise, which enables Shenzhen Onething to enjoy the preferential tax rate of 15% as long as it continues to file for Qianhai Enterprise in subsequent years until December 31, 2020. As a result, the applicable tax rate of Shenzhen Onething for the years ended December 31, 2015 was 15%.

Dividends paid by the PRC subsidiaries of the Group out of the profits earned after December 31, 2007 to non-PRC tax resident investors are subject to PRC withholding tax. The withholding tax (“WHT”) on dividends is 10%, unless a foreign investor's tax jurisdiction has a tax treaty with the PRC that provides for a lower withholding tax rate and the foreign investor is recognized as the beneficial owner of the income under the relevant tax rules. The 10% WHT is applicable to any dividends to be distributed from Giganology Shenzhen and Xunlei Computer to the Company out of any profits of these two companies derived after January 1, 2008. Up to December 31, 2015, both Giganology Shenzhen and Xunlei Computer did not declare any dividend to the parent company and have determined that it has no present plan to declare and pay any dividends. The Group currently plans to continue to reinvest its subsidiaries' undistributed earnings, if any, in its operations in China indefinitely. Accordingly, no withholding income tax was accrued or required to be accrued as of December 31, 2014 and 2015. The undistributed earnings from the Group's PRC entities as of December 31, 2014 and 2015 amounted to USD38,393 thousand and USD 34,313 thousand, respectively. An estimated foreign withholding taxes of USD3,839 thousand and USD 3,431 thousand would be due if these earnings were remitted as dividends as of December 31, 2014 and 2015, respectively.

Moreover, the current EIT Law treats enterprises established outside of China with “effective management and control” located in the PRC as PRC resident enterprises for tax purposes. The term “effective management and control” is generally defined as exercising overall management and control over the business, personnel, accounting, properties, etc. of an enterprise. The Company, if considered a PRC resident enterprise for tax purposes, would be subject to the PRC Enterprise Income Tax at the rate of 25% on its worldwide income for the period after January 1, 2008. As of December 31, 2015, the Company has not accrued for PRC tax on such basis. The Company will continue to monitor its tax status.

The current and deferred portions of income tax expense included in the consolidated statements of operations are as follows:


Continuing operations	Years ended December 31,
(In thousands)	2013		2014		2015
Current income tax expenses		175		397		289
Deferred income tax benefits		385		66		(1,175	)
Taxation for the year		560		463		(886	)

The aggregate amount and per share effect of the tax holiday are as follows:


	Years ended December 31,
	2013		2014		2015
Aggregate dollar effect (in thousands)		4,638		2,784		(830	)
Per share effect—basic		0.08		0.01		0.00
Per share effect—diluted		0.06		0.01		0.00

The reconciliation of total tax expense/(benefit) computed by applying the respective statutory income tax rates to pre-tax income/(loss) is as follows:


Continuing operations	Years ended December 31,
(In thousands)	2013			2014			2015
Income tax expense/(benefit) at PRC statutory rate (based on statutory tax rate applicable to enterprises in Shenzhen, China)		5,878			7,211			(438	)
Effects of differences in tax rates in different jurisdictions applicable to entities of the Group outside of the PRC		667			(838	)		2,400
Non-deductible expenses		102			714			14
Effect of Super Deduction available to Shenzhen Xunlei		(1,763	)		(1,365	)		-
Effect of tax holiday		(5,270	)		(4,613	)		(369	)
Change in valuation allowance of deferred tax assets		—			291			4,750
Effect on deferred tax assets due to change in tax rates		1,764			(103	)		(8)
Outside basis difference arising from VIE and its subsidiaries in the PRC		713			478			(2,174	)
Expiration of tax loss		31			51			290
Others		(1,562	)		(1,363	)		(5,351	)
Income tax expense/ (benefit)		560			463			(886	)

The tax effects of temporary differences that give rise to the deferred tax asset and liability balances at December 31, 2014 and 2015 are as follows:


(In thousands)	December 31, 2014			December 31, 2015
Deferred tax assets, current portion:
Net operating loss carried forward (Note a)		315			417
Amortization of intangible assets arising from intragroup transactions (Note b)		69			95
Amortization of content copyrights (Note c)		1,675			—
Impairment of online game licenses		32			23
Impairment of long-term equity investment		—			115
Allowance for advance to suppliers		—			120
Valuation allowance		—			(81	)
Deferred tax assets, current portion, net		2,091			689
Deferred tax assets, non-current portion:
Net operating loss carried forward (Note a)		6,103			13,016
Allowance for doubtful accounts		796			—
Amortization of intangible assets arising from intragroup transactions (Note b)		105			54
Impairment of online game licenses		16			—
Amortization of Content Copyrights (Note c)		4,133			—
Valuation allowance		(291	)		(4,477	)
Deferred tax assets, non-current portion, net		10,862			8,593

Deferred tax liability, non-current portion:
Outside basis difference (Note d)		(8,552	)		(6,378	)

Note a:

As of December 31, 2015, the Group had tax loss carryforwards of USD 53,161 thousand, which can be carried forward to offset future taxable income. The net operating tax loss carryforwards will begin to expire as follows:


(In thousands)
2016			1,398
2017			889
2018			6,191
2019			3,647
2020 and thereafter			41,036
			53,161

Note b:

Before 2008, Giganology Shenzhen sold several self-developed software at a market valuation of approximately RMB42 million to Shenzhen Xunlei. Shenzhen Xunlei was entitled to capitalize the amounts as intangible assets for tax purposes and the respective amortization charges could be entitled to claim tax deduction. As a result, this transaction had created a temporary difference between the accounting base (on a group basis) and the tax base (on Shenzhen Xunlei standalone basis) and led to origination of a deferred tax asset.

Note c:

As mentioned in Note 2(n), the Group adopts certain accelerated amortization methods for amortization of certain Content Copyrights for accounting purposes, while straight- line method is adopted for PRC tax reporting. Accordingly, the differences have led to origination of temporary differences.

Note d:

The deferred tax liabilities arising from the aggregate retained earnings and reserves of the VIE and its subsidiaries that are expected to be recovered by Giganology Shenzhen and other affiliates of the Group in the future periods, amounted to USD 34,210 thousand and USD 25,512 thousand as of December 31, 2014 and 2015, respectively.

Movement of valuation allowance is as follows:


	Years ended December 31,
(In thousands)	2013			2014			2015
Beginning balance		(43	)		—			(291	)
Additions		—			(291	)		(4,268	)
Write-off		43			—			—
Ending balance		—			(291	)		(4,559	)

Valuation allowances had been provided against the net deferred tax assets because it is more likely than not that all of the deferred tax asset will not be realized. In 2013, valuation allowance was written off due to the termination of the business of Xunlei Nanjing. In 2014, valuation allowance was provided for net operating loss carry forward of Onething because it was more likely than not that such deferred tax assets will not be realized based on the Group's estimate of Onething's future taxable income. In 2015, valuation allowance was provided for net operating loss carry forward of Xunlei Beijing, Xunlei Youxi and Onething because it was more likely than not that such deferred tax assets will not be realized based on the Group's estimate of their future taxable income, and the fact that the three entities were not included in the tax strategy plan.

As of December 31, 2015, the tax returns of the Group's subsidiaries, VIE and its subsidiaries since their respective dates of incorporation are still open to examination.

Fair value measurements

12 Months Ended

Dec. 31, 2015

Fair value measurements [Abstract]

Fair value measurements

24.

Fair value measurements

Effective January 1, 2008, the Group adopted ASC 820-10, Fair Value Measurements and Disclosures, which defines fair value, establishes a framework for measuring fair value and expands financial statement disclosures about fair value measurements. Although adoption did not impact the Group's consolidated financial statements, ASC 820-10 requires additional disclosures to be provided on fair value measurements.

ASC 820-10 establishes a three-tier fair value hierarchy, which prioritizes the inputs used in measuring fair value as follows:

Level 1—Observable inputs that reflect quoted prices (unadjusted) for identical assets or liabilities in active markets

Level 2—Include other inputs that are directly or indirectly observable in the marketplace or based on quoted price in markets that are not active

Level 3—Unobservable inputs which are supported by little or no market activity and are significant to the overall fair value measurement

ASC 820-10 describes three main approaches to measuring the fair value of assets and liabilities: (1) market approach; (2) income approach and (3) cost approach. The market approach uses prices and other relevant information generated from market transactions involving identical or comparable assets or liabilities. The income approach uses valuation techniques to convert future amounts to a single present value amount. The measurement is based on the value indicated by current market expectations about those future amounts. The cost approach is based on the amount that would currently be required to replace an asset.

The following table sets forth the financial instruments, measured at fair value, by level within the fair value hierarchy as of December 31, 2014 and 2015.


	Fair value measurements as at December 31, 2014
(In thousands)	Total		Quoted prices in active market for indentifical assets (Level 1)		Significant other observable inputs (Level 2)		Significant observable inputs (Level 3)
Cash equivalent: time deposits with original maturities less than three months		31,117		—		31,117		—
Short term investments:
Investments in financial instruments		29,427		—		29,427		—
		60,544		—		60,544		—

	Fair value measurements as at December 31, 2015
(In thousands)	Total		Quoted prices in active market for indentifical assets (Level 1)		Significant other observable inputs (Level 2)		Significant observable inputs (Level 3)
Cash equivalent: time deposits with original maturities less than three months		314,357		—		314,357		—
Short term investments:
Investments in financial instruments		70,328		—		70,328		—
		384,685		—		384,685		—

The entire disclosure for the fair value of financial instruments (as defined), including financial assets and financial liabilities (collectively, as defined), and the measurements of those instruments as well as disclosures related to the fair value of non-financial assets and liabilities. Such disclosures about the financial instruments, assets, and liabilities would include: (1) the fair value of the required items together with their carrying amounts (as appropriate); (2) for items for which it is not practicable to estimate fair value, disclosure would include: (a) information pertinent to estimating fair value (including, carrying amount, effective interest rate, and maturity, and (b) the reasons why it is not practicable to estimate fair value; (3) significant concentrations of credit risk including: (a) information about the activity, region, or economic characteristics identifying a concentration, (b) the maximum amount of loss the entity is exposed to based on the gross fair value of the related item, (c) policy for requiring collateral or other security and information as to accessing such collateral or security, and (d) the nature and brief description of such collateral or security; (4) quantitative information about market risks and how such risks are managed; (5) for items measured on both a recurring and nonrecurring basis information regarding the inputs used to develop the fair value measurement; and (6) for items presented in the financial statement for which fair value measurement is elected: (a) information necessary to understand the reasons for the election, (b) discussion of the effect of fair value changes on earnings, (c) a description of [similar groups] items for which the election is made and the relation thereof to the balance sheet, the aggregate carrying value of items included in the balance sheet that are not eligible for the election; (7) all other required (as defined) and desired information.

Commitments and contingencies [Abstract]

Other income, net

12 Months Ended

Dec. 31, 2015

Other income, net [Abstract]

Other income, net

25.

Other income, net


Continuing Operations	Years ended December 31,
(In thousands)	2013			2014			2015
Subsidy income		1,393			2,236			1,902
Fair value changes of warrants liabilities		1,531			8,054			—
Investment income from short-term investments		1,847			3,471			3,666
Dilution gains arising from deemed disposal of investment (Note 11)		—			449			702
Investment loss impairment of long-term investment		—			—			(802	)
Exchange losses		(252	)		(176	)		(2,771	)
Settlement income		249			489			755
Others		(89	)		(557	)		175
		4,679			13,966			3,627

Commitments and contingencies

12 Months Ended

Dec. 31, 2015

Certain risks and concentration [Abstract]

26.

Commitments and contingencies

Rental commitments

The Group leases facilities in the PRC under non-cancellable operating leases expiring on different dates. Payments under operating leases are expensed on a straight-line basis over the periods of the respective leases, including any free rental periods.

Total office rental expenses under all operating leases were USD 2,786 thousand, USD 3,068 thousand and USD 2,751 thousand for the years ended December 31, 2013, 2014 and 2015, respectively.

Future minimum payments under non-cancellable operating leases of office rental consist of the following as of December 31, 2015:


(In thousands)
2016			751
2017			174
2018			—
			925

Bandwidth lease commitments

The Group leases bandwidth in the PRC under non-cancellable operating leases expiring on different dates. Payments under bandwidth leases are expensed on a straight-line basis over the duration of the respective lease periods, including any lease free periods.

Total bandwidth leasing costs for continuing operations under all operating leases were USD 28,174 thousand, USD 33,545 thousand and USD 37,218 thousand for the years ended December 31, 2013, 2014 and 2015. Total bandwidth leasing costs for discontinued operations under all operating leases were USD 7,279 thousand, USD 6,828 thousand and USD 2,983 thousand for the years ended December 31, 2013, 2014 and 2015.

Future minimum payments under non-cancellable bandwidth leases consist of the following as of December 31, 2015:


(In thousands)
2016			15,715
2017			9,965
			25,680

Capital commitments

As at December 31, 2015, the Group had irrevocable purchase obligations for certain copyrights and online game licenses that had not been recognized in the amount of USD nil and USD 5,844 thousand, respectively.

Litigation

The Group is involved in a number of cases pending in various courts. These cases are substantially related to alleged copyright infringement as well as routine and incidental matters to its business, among others. Adverse results in these lawsuits may include awards of damages and may also result in, or even compel, a change in the Group's business practices, which could impact the Group's future financial results. The Group had incurred USD 263 thousand, USD 1,073 thousand and USD 3,307 thousand legal and litigation related expenses for the years ended December 31, 2013, 2014 and 2015, respectively.

Up to April 21, 2016, which is the date when the consolidated financial statements were issued, the Group had 65 lawsuits pending against the Group with an aggregate amount of claimed damages of approximately RMB 6.96 million (USD 1.07 million) which occurred before December 31, 2015. Of the 65 pending lawsuits, 53 lawsuits were relating to the alleged copyright infringement in the PRC. The Group had accrued for USD 2,601 thousand litigation related expenses in ‘‘Accrued expenses and other liabilities'' in the consolidated balance sheet as of December 31, 2015, which is the most probable and reasonably estimable outcome.

The Group estimated the litigation compensation based on judgments handed down by the court, out-of-court settlements of similar cases as well as advices from the Group's legal counsel. The Group is in the process of appealing certain judgments for which the losses had been accrued. Although the results of unsettled litigation and claims cannot be predicted with certainty, the Group does not expect that the outcome of the 65 lawsuits will result in the amounts accrued materially different from the range of reasonably possible losses. In the opinion of management, there was not at least a reasonable possibility the Company may have incurred a material loss, or a material loss in excess of a recorded accrual, with respect to loss contingencies for asserted legal and other claims. However, the outcome of litigation is inherently uncertain. Therefore, although management considers the likelihood of such an outcome to be remote, if one or more of these legal matters were resolved against the Company in a reporting period for amounts in excess of management's expectations, the Company's consolidated financial statements for that reporting period could be materially adversely affected.

In May 2014, the Group entered into a content protection agreement with the Motion Picture Association of America, Inc., or MPAA, and six major U.S. entertainment content providers, which are the members of MPAA. In January 2015, a number of MPAA member studios filed copyright infringement lawsuits against the Group with an aggregate amount of claimed damages of RMB 8.40 million (USD 1.37 million), and the cases are awaiting trial as of April 21, 2016. As the litigations remain in their preliminary stages, the Group is unable to express any opinion on the likelihood of an unfavorable outcome or any estimate of the amount or range of any potential loss. Subsequent to December 31, 2015, there were additional claims mainly related to alleged copyright infringement made in the ordinary course of business against the Group. The Group has assessed that none of these claims that occurred between January 1, 2016 and April 21, 2016 will result in the amount accrued materially different from the range of reasonably possible losses in the consolidated financial statements of the Group.

Certain risks and concentration

12 Months Ended

Dec. 31, 2015

Certain risks and concentration

27.

Certain risks and concentration

PRC regulations

Current PRC laws and regulations place certain restrictions on foreign ownership of companies that engage in internet businesses, including the provision of online video and online advertising services. Specifically, foreign ownership in an internet content provider or other value-added telecommunication service providers may not exceed 50%. The Group conducts its operations in China principally through contractual arrangements among Giganology Shenzhen, its wholly-owned PRC subsidiary, and Shenzhen Xunlei and its shareholders. Shenzhen Xunlei holds the licenses and permits necessary to conduct its resource discovery network, online video, online advertising, online games and related businesses in China and hold various operating subsidiaries that conduct a majority of its operations in China. The Company conducts all of its operations in China through, Shenzhen Xunlei, a variable interest entity, which it consolidates as a result of a series contractual arrangements enacted. If the Company had direct ownership of Shenzhen Xunlei, it would be able to exercise its rights as a shareholder to effect changes in the board of directors of Shenzhen Xunlei, which in turn could effect changes at the management level, subject to any applicable fiduciary obligations. However, under the current contractual arrangements, it relies on Shenzhen Xunlei and its shareholders' performance of their contractual obligations to exercise effective control. In addition, its operating contract with Shenzhen Xunlei has a term of ten years, which is subject to Giganology Shenzhen's unilateral termination right. None of Shenzhen Xunlei or its shareholders may terminate the contracts prior to the expiration date.

Further, the Group believes that the contractual arrangements among Giganology Shenzhen, Shenzhen Xunlei and its shareholders are in compliance with PRC law and are legally enforceable. However, the Chinese government may issue from time to time new laws or new interpretations on existing laws to regulate this industry. Regulatory risk also encompasses the interpretation by the tax authorities of current tax laws, and the Group's legal structure and scope of operations in the PRC, which could be subject to further restrictions resulting in limitations on the Company's ability to conduct business in the PRC. The PRC government may also require the Company to restructure the Group's operations entirely if it finds that its contractual arrangements do not comply with applicable laws and regulations. Furthermore, it could revoke the Group's business and operating licenses, require it to discontinue or restrict its operations, restrict its right to collect revenues, block its website, require it to restructure its operations, impose additional conditions or requirements with which the Group may not be able to comply, or take other regulatory or enforcement actions against the Group that could be harmful to its business. The imposition of any of these penalties may result in a material and adverse effect on the Group's ability to conduct the Group's business. In addition, if the imposition of any of these penalties causes the Group to lose the rights to direct the activities of the VIE and its subsidiaries or the right to receive their economic benefits, the Group would no longer be able to consolidate the VIE. The Group does not believe that any penalties imposed or actions taken by the PRC Government would result in the liquidation of the Company, Giganology Shenzhen or Shenzhen Xunlei.

As of December 31, 2015, the aggregate retained earnings and distributable reserves of VIE and VIE's subsidiaries amounted to approximately USD 25,512 thousand (2014: USD 34,210 thousand), which has been included in the consolidated financial statements.

As stated above, Shenzhen Xunlei holds assets that are important to the operation of the Group's business, including patents for proprietary technology, related domain names and trademarks. If Shenzhen Xunlei or its subsidiaries falls into bankruptcy and all or part of its assets become subject to liens or rights of third-party creditors, the Group may be unable to conduct its business activities in China, which could have a material adverse effect on the Group's future financial position, results of operations or cash flows. However, the Group believes this is a normal business risk many companies face. The Group will continue to closely monitor the financial conditions of Shenzhen Xunlei and its subsidiaries.

Shenzhen Xunlei and its subsidiaries' assets comprise both recognized and unrecognized revenue-producing assets. The recognized revenue-producing assets include intangible assets, purchased property and equipment. The balances of these assets held by the VIE and its subsidiaries are included in “copyrights related to content, current portion”, “property and equipment, net” and “intangible assets, net” in the consolidated balance sheet and specifically in the VIE table on the following page. The unrecognized revenue-producing assets mainly consist of license, patents, trademarks, and domain names which are not recorded in the financial statement as they didn't meet the recognition criteria set in ASC 350-30-25. The licenses stated above primarily consist of licenses that grant the VIE and its subsidiaries the right to produce and broadcast internet, radio, and television programs. One of them is the ICP licenses as described in note 1.

As of December 31, 2015, Shenzhen Xunlei and its subsidiaries held patents granted in the PRC and in the United States. Presently, patent applications are being examined by the State Intellectual Property Office of the PRC and also patent application is being reviewed by the United States Patent and Trademark Office.

As of December 31, 2015, Shenzhen Xunlei and its subsidiaries have applied to register trademarks, of which the Company has received registered trademarks in different applicable trademark categories including trademark registered with the United States Patent and Trademark Office and trademark registered with World Intellectual Property Organization.

As of December 31, 2015, Shenzhen Xunlei held one domain name that was recognized as an intangible asset and other domain names that are not recorded in the financial statements.

The following consolidated financial information of the Group's VIE and its subsidiaries from continuing operations was included in the accompanying consolidated financial statements as of and for the years ended:


	As of December 31,
(In thousands)	2014		2015
Current assets:
Cash and cash equivalents		43,849		32,461
Short-term investments		28,575		69,522
Accounts receivable, net		5,508		11,573
Due from related parties		6		30
Deferred tax assets		1,358		351
Inventories				480
Prepayments and other current assets		10,147		31,659
Held for sale assets		46,325		—
Total current assets		135,768		146,076
Non-current assets:
Equity method investments		5,498		9,884
Deferred tax assets		8,262		6,791
Property and equipment, net		16,370		17,991
Construction in progress		—		14
Intangible assets, net		16,635		14,297
Goodwill		23,237		21,896
Prepayments for content copyrights		1,239		—
Other long-term prepayments		5,795		7,430
Total non-current assets		77,076		78,303
Total assets		212,844		224,379
Current liabilities:
Accounts payables		24,504		33,262
Due to a related party		84		38
Deferred revenue and income, current portion		27,534		24,902
Income tax payable		2,554		2,407
Accrued liabilities and other payables		85,701		131,312
Held for sale liabilities		26,438		-
Total current liabilities		166,815		191,921
Non-current liabilities:
Deferred revenue and income, non-current portion		6,452		4,751
Total non-current liabilities		6,452		4,751
Total liabilities		173,267		196,672


	Years ended December 31,
(In thousands)	2013		2014		2015
Net revenue from continuing operations		116,381		132,515		129,198
Net income / (loss) attributable to Xunlei Limited		13,940		12,677		(6,408	)


	Years ended December 31,
(In thousands)	2013			2014			2015
Net cash provided by operating activities		92,580			70,822			41,723
Net cash used in investing activities		(66,243	)		(78,335	)		(51,721	)
Net cash provided by financing activities		2,487			856			1,055
		28,824			(6,657	)		(8,943	)

Foreign exchange risk

The Group's financing activities are denominated mainly in the USD. The RMB is not freely convertible into foreign currencies. Remittances of foreign currencies into the PRC and exchange of foreign currencies into the RMB require approval by foreign exchange administrative authorities and certain supporting documentation. The State Administration for Foreign Exchange, under the authority of the People's Bank of China, controls the conversion of the RMB into other currencies. The revenues and expenses of the Company's subsidiaries, consolidated VIE and its subsidiaries are generally denominated in the RMB and their assets and liabilities are denominated in the RMB.

Concentration of customer risk

The top 10 customers accounted for 14%, 16% and 26% of the net revenues for the years ended December 31, 2013, 2014 and 2015, respectively. Prior to entering into sales agreements, the Group performs credit assessments of its customers to assess the credit history of its customers. Further, the Group has not experienced any significant bad debts with respect to its accounts receivable.

Credit risk

As of December 31, 2014 and 2015, substantially all of the Group's cash and cash equivalents were held at reputable financial institutions in the jurisdictions where the Group and its subsidiaries are located. The Group believes that it is not exposed to unusual risks as these financial institutions have high credit quality. The Group has not experienced any losses on its deposits of cash and cash equivalents.

Prior to entering into sales agreements, the Group performs credit assessments of its customers to assess the credit history of its customers. Further, the Group has not experienced any significant bad debts with respect to its accounts receivable.

Subsequent events

12 Months Ended

Dec. 31, 2015

Subsequent events [Abstract]

Subsequent events

28.

Subsequent events

Restricted shares grant

In March 2016, 1,018,500 restricted shares had been granted to certain executive officers or employees of the Group.

Repurchase of shares

In January 2016, our board of directors authorized a second share repurchase program, whereby our company may repurchase up to US$20 million of our common shares or ADSs from January 26, 2016 to January 26, 2017 through the same means as the Repurchase Program. We publicly announced this second repurchase program on January 27, 2016.

Investments

In March 2016, the Group paid USD 12.7 million as the consideration to acquired 10% equity interests in Shanghai Lexiang Technologies Co., Ltd (Lexiang), a company in Shanghai, the PRC which invests in research and development of virtual reality. This acquisition was closed in March, 2016.

Restricted net assets

12 Months Ended

Dec. 31, 2015

Restricted net assets [Abstract]

Restricted net assets

29.

Restricted net assets

Relevant PRC laws and regulations permit payments of dividends by the Company's subsidiaries, VIE and VIE's subsidiaries in China only out of their retained earnings, if any, as determined in accordance with PRC accounting standards and regulations. In addition, the Company's subsidiaries, VIE and VIE's subsidiaries in China are required to make certain appropriation of net after-tax profits or increase in net assets to the statutory surplus fund (see Note 2(cc)) prior to payment of any dividends. As a result of these and other restrictions under PRC laws and regulations, the Company's subsidiaries, VIE and VIE's subsidiaries in China are restricted in their ability to transfer their net assets to the Company in terms of cash dividends, loans or advances, which restricted portion amounted to USD 59,760 thousand and USD 117,728 thousand as of December 31, 2014 and 2015, respectively. Even though the Company currently does not require any such dividends, loans or advances from the PRC subsidiaries, VIE and VIE's subsidiaries for working capital and other funding purposes, the Company may in the future require additional cash resources from the Company's subsidiaries, VIE and a VIE's subsidiaries in China due to changes in business conditions, to fund future acquisitions and development, or merely to declare and pay dividends to make distributions to shareholders.

Additional information: condensed financial statements of the Company

12 Months Ended

Dec. 31, 2015

Additional information: condensed financial statements of the Company [Abstract]

Additional information: condensed financial statements of the Company

30.

Additional information: condensed financial statements of the Company

Regulation S-X require condensed financial information as to financial position, changes in financial position and results of operations of a parent company as of the same dates and for the same periods for which audited consolidated financial statements have been presented when the restricted net assets of consolidated and unconsolidated subsidiaries together exceed 25 percent of consolidated net assets as of the end of the most recently completed fiscal year.

The Company records its investment in its subsidiaries, VIE and VIE's subsidiaries under the equity method of accounting.

Such investments are presented on the separate condensed balance sheets of the Company as “Long-term investments”.

The subsidiaries did not pay any dividends to the Company for the periods presented. Certain information and footnote disclosures generally included in financial statements prepared in accordance with U.S. GAAP have been condensed and omitted. The footnote disclosures represent supplemental information relating to the operations of the Company, as such, these statements should be read in conjunction with the notes to the consolidated financial statements of the Group.

The Company did not have significant other commitments, long-term obligations, or guarantees as of December 31, 2015.

Condensed balance sheets


(In thousands)	December 31, 2014		December 31, 2015
Assets
Current assets:
Cash and cash equivalents		309,457		292,175
Due from subsidiaries and consolidated VIEs		67,397		92,864
Prepayments and other current assets		6,709		1,090
Total current assets		383,563		386,129
Non-current assets:
Intangible assets, net		394		—
Investments in subsidiaries and consolidated VIEs		82,360		68,481
Total assets		466,317		454,610
Liabilities
Current liabilities:
Accounts payable		101		101
Deferred revenue and income, current portion		211		211
Accrued liabilities and other payables		2,328		1,735
Total current liabilities		2,640		2,047
Non-current liabilities:
Deferred revenue and income, non-current		842		632
Warrants liabilities		—		—
Due to related parties, non-current portion		4,137		4,337
Other long-term payable		807		845
Total liabilities		8,426		7,861
Commitments and contingencies
Shareholders' equity
Common shares		82		85
Treasury shares 30,274,602 shares as at December 31, 2014 and 29,558,094 shares as at December 31, 2015		7		7
Other shareholders' equity		457,802		446,657
Total Xunlei Limited's shareholders' equity		457,891		446,749
Total liabilities, mezzanine equity and shareholders' equity		466,317		454,610

Condensed statements of operations


	Years ended December 31,
(In thousands)	2013			2014			2015
Revenues		—			—			—
Cost of revenues		(2,264	)		(1,673	)		(131	)
Gross profit		(2,264	)		(1,673	)		(131	)
Operating expenses
Research and development expenses		—			—			—
Sales and marketing expenses		(241	)		—			—
General and administrative expenses		(972	)		(996	)		(1,314	)
Total operating expenses		(1,213	)		(996	)		(1,314	)
Operating loss		(3,477	)		(2,669	)		(1,445	)
Interest income		706			6,171			5,318
Interest expense		—			(163	)		(239	)
Other income, net		1,651			7,602			(3,261)
Income / (loss) from subsidiaries and consolidated VIEs		11,782			(129	)		(13,540	)
Income / (loss) before income tax		10,662			10,812			(13,167	)
Income tax		—			—			—
Net income / (loss)		10,662			10,812			(13,167	)
Net income attributable to the non-controlling interest		—			—			—
Net income / (loss) attributable to Xunlei Limited's common shareholders		10,662			10,812			(13,167	)

Condensed statement of cash flows


	Years ended December 31,
(In thousands)	2013			2014			2015
Cash flows from operating activities
Net cash generated from/(used in) operating activities		4,708			(41,485	)		(26,069	)
Cash flows from investing activities
Net cash used in investing activities		(3,843	)		(10,333	)		3,812
Cash flows from financing activities
Net cash generated from/(used in) financing activities		(2,242	)		332,412			4,975
Net (decrease) / increase in cash and cash equivalents		(1,377	)		280,594			(17,282	)
Cash and cash equivalents at beginning of year		30,240			28,863			309,457
Effect of exchange rates on cash and cash equivalents		—			—			—
Cash and cash equivalents at end of year		28,863			309,457			292,175

Summary of significant accounting policies (Policies)

12 Months Ended

Dec. 31, 2015

Summary of significant accounting policies [Abstract]

Basis of presentation and use of estimates

(a)

Basis of presentation and use of estimates

The Restructuring was accounted for at historical costs. The assets and liabilities of Shenzhen Xunlei are consolidated in the Company's financial statements at carryover basis.

Consolidation

(b)

Consolidation

Discontinued operations

(c)

Discontinued operations

Foreign currency translation

(d)

Foreign currency translation

The exchange rate used is released by Chinese State Administration of Foreign Exchange.

(e)

Cash and cash equivalents

Fair value of financial instruments

(f)

Short-term investments

(g)

Fair value of financial instruments

(h)

Accounts receivable, net

Some of the factors that the Group considers in determining whether a bad debt allowance is recorded on an individual customer are:

1) the customer's past payment history and whether it fails to comply with its payment schedule;

2) whether the customer is in financial difficulty due to economic or legal factors;

3) a significant dispute with the customer has occurred;

4) the objective evidence which indicates non-collectability of the accounts receivable.

The allowances provided for Accounts Receivable from continuing operations as of December 31, 2014 and 2015 were USD 0.1 million and USD 0.1 million, respectively.

(i)

Inventories

An allowance is recorded for excess inventory and obsolescence based on the lower of cost or net realizable value.

Long-term investments

(j)

Long-term investments

Property and equipment

(k)

Property and equipment


	Estimated useful lives		Residual rate
Servers and network equipment		5 years		5	%
Computer equipment		5 years		5	%
Furniture, fittings and office equipment		5 years		5	%
Motor vehicles		5 years		5	%
Leasehold improvements		shorter of lease term or 3 years		—

Impairment of long-lived assets

(l)

Goodwill

Goodwill represents the excess of the purchase price over the amounts assigned to the fair value of the assets acquired and the liabilities assumed of an acquired business.

Impairment of goodwill

(m)

Impairment of goodwill

Intangible assets

(n)

Intangible assets

I)	Content copyrights

II)	Other intangible assets

(o)

Impairment of long-lived assets

Sales and marketing expenses

(p)

Commitments and contingencies

Operating leases

(q)

Operating leases

Revenue recognition

(r)

Revenue recognition

I)	Subscription revenues

II)	Advertising revenues

Transactions with third party advertising agencies

—Price is fixed and determinable—prices charged to the advertising agencies are specified in the agreements, including relevant discount and rebate rates

—Services are rendered—the Group recognizes revenue ratably over the contract period of display

Transactions with advertisers

III)	Other internet value-added services

i)	Online game revenues

Non-exclusive game licensed contracts

Exclusive licensing game contracts

ii)	Content sub-licensing revenue

iii)	Pay per view subscription revenue

Viewers can also pay to watch individual movies for an unlimited number of times. Revenue is recognized when the movie is broadcasted to the viewer.

iv)	Revenues from traffic referral programs

Revenues from ZQB and cloud computing

The Group sells to online platforms such as JD.com and Taobao.com. The revenue from ZQB is recognized when the item is dispatched to customers.

Barter transactions

(s)

Barter transactions

(t)

Sales and marketing expenses

General and administrative expenses

(u)

General and administrative expenses

General and administrative expenses consist primarily of salary and benefits, professional service fees, legal expenses and other administrative expenses.

Research and development costs

(v)

Research and development costs

Taxation and uncertain tax positions

(w)

Taxation and uncertain tax positions

Transition from PRC Business Tax to PRC Value Added Tax

Retirement benefits

(x)

Retirement benefits

Share-based compensation

(y)

Share-based compensation

Government subsidies

(z)

Government subsidies

Segment reporting

(aa)

Segment reporting

An analysis of the different types of revenues for the years ended December 31, 2013, 2014 and 2015 are summarized as follows:


Revenue from continuing operations	Years ended December 31,
(In thousands)	2013		2014		2015
Subscription revenue		86,733		98,189		82,435
Advertising revenue		2,951		5,834		4,802
Other internet value-added services (note a)		32,347		31,789		42,759
Total		122,031		135,812		129,996


note a:	Other internet value-added services mainly comprise revenue from online game, traffic referral programs, technical services regarding online acceleration, online sales revenue, sales of software licenses, and revenue from project crystal (including CDN revenue and revenue from ZQB).

Net income / (loss) per share

(bb)

Net income / (loss) per share

Comprehensive income

(cc)

Comprehensive income

Profit appropriation and statutory reserves

(dd)

Profit appropriation and statutory reserves

There are no legal requirements in the PRC to fund these reserves by transfer of cash to restricted accounts, and the Group does not do so.


(In thousands)	December 31, 2014		December 31, 2015
Registered capital		54,467		112,435
Additional paid-in capital		161		161
Statutory reserves		5,132		5,132
Total		59,760		117,728

Dividends

(ee)

Dividends

Recent accounting pronouncements

(ff)

Recent accounting pronouncements

Organization and nature of operations (Tables)

12 Months Ended

Dec. 31, 2015

Organization and nature of operations [Abstract]

Accompanying Consolidated Financial Statements Include Financial Statements of Company, Subsidiaries, Variable Interest Entity ("VIE") and VIE's Subsidiaries


Name of entities	Place of incorporation	Date of incorporation	Relationship	% of direct or indirect economic ownership		Principal activities

Shenzhen Xunlei Networking Technologies, Co., Ltd (“Shenzhen Xunlei”).	China	January 2003	VIE	100	%	Development of software, provision of online and related advertising, membership subscription and online game services; as well as sales of software licenses

Giganology (Shenzhen) Co. Ltd (“Giganology Shenzhen”)..	China	June 2005	Subsidiary	100	%	Development of computer software and provision of information technology services to related companies

Shenzhen Fengdong Networking Technologies, Co., Ltd (“Fengdong”)	China	December 2005	VIE's subsidiary	100	%	Development of software for related companies

Shenzhen Xunlei Kankan Information Technologies Co., Ltd (formerly known as “155 Networking (Shenzhen) Co., Ltd”).	China	August 2008	VIE's subsidiary	100	%	Development of software for related companies (note a)

Xunlei Software (Beijing) Co., Ltd (“Xunlei Beijing”).	China	June 2009	VIE's subsidiary	100	%	Development of software for related companies

Xunlei Software (Shenzhen) Co., Ltd (“Xunlei Software”).	China	January 2010	VIE's subsidiary	100	%	Provision of software technology development for related companies


Xunlei Software (Nanjing) Co., Ltd (“Xunlei Nanjing”)	China	January 2010	VIE's subsidiary	100	%	Development of computer software and online games for related companies and provision of advertising services (note b)

Xunlei Games Development (Shenzhen) Co., Ltd.	China	February 2010	VIE's subsidiary	70	%	Development of online game and computer software for related companies and provision of advertising services

Xunlei Network Technologies Limited (“Xunlei BVI”)	British Virgin Islands	February 2011	Subsidiary	100	%	Holding company

Xunlei Network Technologies Limited (“Xunlei HK”)	Hongkong	March 2011	Subsidiary	100	%	Development computer software of related companies and provision of advertising services

Xunlei Computer (Shenzhen) Co., Ltd (“Xunlei Computer”)	China	November 2011	Subsidiary	100	%	Development of computer software and provision of information technology services to related companies

Shenzhen Onething Technologies Co., Ltd (“One Thing”)	China	September 2013	VIE's subsidiary	100	%	Development of computer software and provision of information technology services to related companies

Wangxin Century Technologies (Beijing) Co., Ltd ("Beijin Wangxin")	China	October 2015	VIE's subsidiary	100	%	Development of computer software and provision of information technology services

Note a:	Xunlei Kankan was disposed in 2015, see note 3 for further discussion.

Note b:	In January 2011, the equity owners of Xunlei Nanjing resolved to liquidate the entity. In May 2012, Xunlei Nanjing was approved to be de-registered by the relevant government authorities. There was no significant financial impact to the consolidated financial statements of the Group.

Note c:

The English names of the PRC companies represent management's translation of the Chinese names of these companies as these companies have not adopted formal English names.

Summary of significant accounting policies (Tables)

12 Months Ended

Dec. 31, 2015

Summary of significant accounting policies [Abstract]

Schedule of Property and Equipment Estimated Useful Life


	Estimated useful lives		Residual rate
Servers and network equipment		5 years		5	%
Computer equipment		5 years		5	%
Furniture, fittings and office equipment		5 years		5	%
Motor vehicles		5 years		5	%
Leasehold improvements		shorter of lease term or 3 years		—

Analysis of Different Types of Revenues


Revenue from continuing operations	Years ended December 31,
(In thousands)	2013		2014		2015
Subscription revenue		86,733		98,189		82,435
Advertising revenue		2,951		5,834		4,802
Other internet value-added services (note a)		32,347		31,789		42,759
Total		122,031		135,812		129,996


note a:	Other internet value-added services mainly comprise revenue from online game, traffic referral programs, technical services regarding online acceleration, online sales revenue, sales of software licenses, and revenue from project crystal (including CDN revenue and revenue from ZQB).

Schedule of Balances of Registered Capital, Additional Paid-in-Capital and Statutory Reserves


(In thousands)	December 31, 2014		December 31, 2015
Registered capital		54,467		112,435
Additional paid-in capital		161		161
Statutory reserves		5,132		5,132
Total		59,760		117,728

Discontinued operations (Tables)

12 Months Ended

Dec. 31, 2015

Discontinued operations [Abstract]

Schedule of results of the discontinued operation, assets and liabilities of the discontinued operation and cash flows (used in) discontinued operations

Results of the discontinued operation

USD (In thousands)	2013			2014			2015
Revenues, net of rebates and discounts		58,213			47,075			15,677
Business taxes and surcharges		(1,746	)		(1,480	)		(447	)
Net revenues		56,467			45,595			15,230
Cost of revenues		(43,002	)		(42,704	)		(13,240	)
Gross profit		13,465			2,891			1,990
Operating expenses
Research and development expenses		(7,092	)		(6,035	)		(3,245	)
Sales and marketing expenses		(16,762	)		(15,726	)		(7,384	)
General and administrative expenses		(4,410	)		(3,016	)		(3,051	)
Total operating expenses		(28,264	)		(24,777	)		(13,680	)
Net gain from exchanges of content copyrights		1,020			1,556			137
Operating loss		(13,779	)		(20,330	)		(11,553	)
Gain on disposal of Kankan		—			—			1,505
Income taxes benefits/(expenses)		1,207			1,923			(2,048	)
Loss from discontinued operations		(12,572	)		(18,407	)		(12,096	)

Assets and liabilities of the discontinued operation

USD (In thousands)	December 31, 2014
Assets
Accounts receivable, net		23,741
Prepayments and other current assets		670
Copyrights related to content-current portion		16,013
Property and equipment, net		1,111
Intangible assets		4,997
Prepayment for content		456
Other long-term prepayments and receivables		57
Total assets held for sale		47,045

Liabilities
Accounts payables		25,267
Deferred revenue, current portion		1,018
Accrued liabilities and other payables		1,082
Total liabilities held for sale		27,367

Cash flows generated from/ (used in) discontinued operations

USD (In thousands)	2013			2014			2015
Net cash generated from/(used in) operating activities		10,439			2,293			(1,554)
Net cash (used in)/generated from investing activities		(16,402	)		(34,661	)		9,135
Net cash used in financing activities		—			—			—
Net cash flow for the year		(5,963)			(32,368	)		7,581

Cash and cash equivalents [Abstract]

Tabular disclosure of information related to a disposal group. Includes, but is not limited to, a discontinued operation, disposal classified as held-for-sale or disposed of by means other than sale or disposal of an individually significant component.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 205
-SubTopic 20
-Section 45
-Paragraph 11
-URI http://asc.fasb.org/extlink&oid=51716988&loc=SL51721533-107759

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 205
-SubTopic 20
-Section 50
-Paragraph 4B
-URI http://asc.fasb.org/extlink&oid=51717284&loc=SL51721665-107760

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 205
-SubTopic 20
-Section 50
-Paragraph 3
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+ Details

Cash and cash equivalents (Tables)

12 Months Ended

Dec. 31, 2015

Summary of Cash on Hand and Cash Held at Bank


	December 31, 2014				December 31, 2015
(In thousands)	Amount		USD equivalent		Amount		USD equivalent
RMB		674,001		110,149		606,845		93,454
USD		294,036		294,036		268,198		268,198
HKD		697		90		969		125
Total				404,275				361,777

Summary of Time Deposits


	December 31, 2014				December 31, 2015
(In thousands)	Amount		USD equivalent		Amount		USD equivalent
RMB		156,749		25,617		349,099		53,760
USD		5,500		5,500		260,597		260,597
Total				31,117				314,357

Accounts receivable, net (Tables)

12 Months Ended

Dec. 31, 2015

Accounts receivable, net [Abstract]

Schedule of Accounts Receivable

Continuing operations (In thousands)	December 31, 2014			December 31, 2015
Accounts receivable		5,311			11,392
Less: Allowance for doubtful accounts		(131	)		(126	)
Accounts receivable, net		5,180			11,266

Schedule of Allowance for Doubtful Accounts


(In thousands)	December 31, 2013		December 31, 2014			December 31, 2015
Balance at beginning of the year		—		—			131
Additions		—		523			4
Reversals		—					—
Write-off		—		(393	)		—
Exchange difference		—		1			(9	)
Balance at end of the year		—		131			126

Prepayments and other assets (Tables)

12 Months Ended

Dec. 31, 2015

Prepayments and other assets [Abstract]

Schedule of Prepayments and Other Assets


(In thousands)	December 31, 2014		December 31, 2015
Current portion:
Advance to suppliers		520		882
Interest-free loans to employees (note a)		3,625		3,200
Low-interest loans to employees, current portion (note b)		64		—
Advance to employees for business purposes		585		957
Interest receivable		5,380		564
Rental and other deposits		774		224
Prepayment for share repurchase plan (note c)		1,000		712
Prepaid game sharing costs		458		—
Prepaid professional fees		900		—
Prepaid management insurance		179		209
Receivable from Nesound (note d)		—		4,004
Prepayment for taxation		—		2,041
Others		405		275
Total of prepayments and other current assets		13,890		13,068
Non-current portion:
Prepayments for online game licenses		5,346		4,786
Long term receivable		—		1,812
Low-interest loans to employees, non-current portion (note b)		449		833
Total of long-term prepayments and other assets		5,795		7,431


Note a:		The Group had entered into loan contracts with certain employees as at December 31, 2014 and 2015, under which the Group provided interest-free loans to these employees. The loan amounts vary amongst different employees and are repayable on demand.

Note b:		The Group had entered into loan contracts with certain employees as at December 31, 2014 and 2015, under which the Group provided low-interest loans to these employees. The loan amounts vary amongst different employees and are repayable in equal instalments on a monthly basis over the term of 10 years.

Note c:		In December 2014, the Company announced a share repurchase program to purchase up to USD 20 million shares and prepaid USD 1 million to a security broker for this program. In December 2015, the Company announced a share repurchase program to purchase up to USD 20 million shares and prepaid USD 0.7 million to a security broker for this program.

Note d.		The Group sold Kankan to Nesound in July 2015. There is a balance receivable remaining amounted USD 4,004 thousand which would be paid to the Group one year after the closing date.

Property and equipment (Tables)

12 Months Ended

Dec. 31, 2015

Property and equipment [Abstract]

Schedule of Property and Equipment


(In thousands)	December 31, 2014			December 31, 2015
Servers and network equipment		32,109			37,332
Computer equipment		1,947			1,544
Furniture, fixtures and office equipment		651			856
Motor vehicles		339			320
Leasehold improvements		1,692			2,504
Total original costs		36,738			42,556
Less: Accumulated depreciation		(20,330	)		(24,534	)
Construction in progress		—			14
Total		16,408			18,036

Summary of Depreciation Expense


	December 31,		December 31,		December 31,
(In thousands)	2013		2014		2015
Cost of revenues		4,317		5,652		5,003
General and administrative expenses		690		715		628
Sales and marketing expenses		105		133		15
Total		5,112		6,500		5,646

Intangible assets, net (Tables)

12 Months Ended

Dec. 31, 2015

Intangible assets, net [Abstract]

Schedule of Intangible Assets


Continuing operations	December 31, 2014										December 31, 2015
(In thousands)	Cost		Amortization			Impairment			Net book value		Cost		Amortization			Impairment			Net book value

Land use rights		5,279		(253	)		—			5,026		5,123		(409	)		—			4,714
Trademarks		6,168		(167	)		—			6,001		5,812		(1,107	)		—			4,705
Non-compete agreement		1,502		(252	)		—			1,250		1,415		(472	)		—			943
Technology (including right-to-use)		2,399		(100	)		—			2,299		2,261		(377	)		—			1,884
Acquired computer software		1,468		(1,141	)		—			327		619		(255	)		—			364
Internal use software development costs		716		(537	)		—			179		675		(641	)		—			34
Online game licenses (note a)		5,304		(4,478	)		(808	)		18		5,827		(4,268	)		(770	)		789
		22,836		(6,928	)		(808	)		15,100		21,732		(7,529	)		(770	)		13,433

Note a:

Schedule of Amortization Expense Recognized


	Years ended December 31
(In thousands)	2013		2014		2015
Cost of Revenue		1,369		1,141		693
General and administrative expenses		269		372		386
Research and development expenses		—		542		1,589
Total		1,638		2,055		2,668

Schedule of Estimated Aggregate Amortization Expense

(In thousands)		Intangible assets
2016		2,234
2017		2,002
2018		1,688
2019		1,321
2020 and thereafter		6,188

Schedule of Weighted Average Amortization Periods of Intangible Assets


(In year)	December 31, 2014		December 31, 2015
Copyrights related to content (i)		2.78		—
Land use right		30		30
Trademarks		7		7
Non-compete agreement		4		4
Technology (including right-to-use)		8		8
Acquired computer software		5		5
Internal use software development costs		5		5
Online game licenses		3		3
Domain name (i)		5		—
Total weighted average amortization periods		3.97		11.08

(i)	Copyrights related to content and domain name are related to the discontinued operation.

Inventories (Tables)

12 Months Ended

Dec. 31, 2015

Inventories [Abstract]

Schedule of inventories

(In thousands)	December 31, 2014		December 31, 2015
ZQB		—		92
Online shopping mall inventories (note a)		—		229
Others		—		159
Total		—		480

Note a

online shopping mall inventoriesincludeXiaomi TV box, gaming discs etc.

Long-term investments (Tables)

12 Months Ended

Dec. 31, 2015

Long-term investments [Abstract]

Schedule of Long-Term Investments

	December 31,			December 31,
(In thousands)	2014			2015
Equity method investments:
Balance at beginning of the year		2,785			2,965
Additions		—			—
Share of loss from equity investees		(259	)		(12	)
Dilution gains arising from deemed disposal of investments (ii) (iii)		449			702
Transfer to cost method investments		—			(1,349	)
Exchange differences		(10	)		(144	)
Balance at end of the year		2,965			2,162
Cost method investments:
Balance at beginning of the year		164			2,533
Additions (i)		2,359			6,506
Transfer from equity method investments		—			1,349
Exchange difference		10			(429	)
Less: impairment loss on long-term investments		—			(802	)
Balance at end of the year		2,533			9,157

Total long-term investments		5,498			11,319

Schedule of Equity Investments, Percentage of Ownership of Common Share


Investee	Percentage of ownership of shares as of December 31,
Investee	2014			2015
Equity method investments:
Zhuhai Qianyou Technology, Co., Ltd. (“Zhuhai Qianyou”),		19.00	%		19.00	%
Guangzhou Yuechuan Network Technology, Co., Ltd. (“Guangzhou Yuechuan”) (ii)		19.13	%		19.13	%
Chengdu Diting Technology, Co., Ltd. (“Chengdu Diting”) (ii)		16.58	%		—
Cost method investments:
Shenzhen Kushiduo Network Science and Technology Co., Ltd. (“Shenzhen Kushiduo”)(i)		10.00	%		12.5	%
Shanghai Guozhi Electronic Technology Co., Ltd. (“Shanghai Guozhi”)		21.00	%		21.00	%
Guangzhou Wucai Information Technology Co., Ltd.(“Guangzhou Wucai”)		10.00	%		10.00	%
Guangzhou Hongsi Network Technology Co., Ltd.(“Guangzhou Hongsi”)		19.90	%		19.90	%
Tianjin Kunzhiyi Network Technology Co., Ltd.(“Tianjin Kunzhiyi”) (iii)		19.99	%		19.99	%
Chengdu Diting Technology, Co., Ltd. (“Chengdu Diting”) (ii)		—			13.27	%
Suzhou Heidisi network technology co., Ltd.("Suzhou Heidisi") (i)		—			19.90	%
Xiamen Diensi network technology co., Ltd.("Xiamen Diensi") (i)		—			15.00	%
Nanjing Qianyi Video information technology co., Ltd.("Nanjing Qianyi") (i)		—			20.00	%
11.2 Capital I, L.P. Ltd. ( "11.2 Capital")(i)		—			2.24	%
Cloudtropy (i)		—			1.13	%

(i)

(ii)

(iii)

Deferred revenue and income (Tables)

12 Months Ended

Dec. 31, 2015

Deferred revenue and income [Abstract]

Schedule of Deferred Revenue and Income


(In thousands)	December 31, 2014			December 31, 2015
Deferred revenue
Membership subscription revenues		27,543			24,502
Online game revenues		1,111			1,120
Pay per view subscription revenues		—			—
Deferred income
Government grants		4,863			4,032
Reimbursement from the depository (i)		1,053			842
Total		34,570			30,496
Less: non-current portion (ii)		(6,825	)		(5,383	)
Deferred revenue and income, current portion		27,745			25,113

(i)	In December of 2014, the Company received from its depositary a reimbursement of USD 1.2 million, net of withholding tax of USD0.3 million. This reimbursement was recognized as deferred income and amortized over the depositary service period of 5 years.

(ii)	As of December 31, 2015, the non-current portion included Membership subscription revenue of USD 719 thousand (2014: USD 1,120 thousand), Government grants of USD 4,032 thousand (2014: USD 4,863 thousand), and Reimbersement from the depositary of USD 632 thousand (2014: 842 thousand).

Accrued liabilities and other payables (Tables)

12 Months Ended

Dec. 31, 2015

Accrued liabilities and other payables [Abstract]

Schedule of Accrued Liabilities and Other Payables


(In thousands)	December 31, 2014		December 31, 2015
Payroll and welfare		11,800		10,570
Agency commissions and rebates—online advertising		8,017		2,443
Payables for advertisement on exclusive online games		2,515		1,643
Receipts in advance from customers		1,133		—
Tax levies		556		1,605
Payables for purchase of equipment		240		4,999
Legal and litigation related expenses (Note 24)		451		2,601
Professional fees		2,460		908
Staff reimbursements		440		611
Rental expense		382		4
Payables for proceeds from selling exercised stock options		872		177
Advance for exercise of stock options		356		—
Payables for gaming distribution		—		158
Payables to Nesound		—		622
Others		1,111		1,038
Total		30,333		27,379

Cost of revenues (Tables)

12 Months Ended

Dec. 31, 2015

Cost of revenues [Abstract]

Schedule of Cost of Revenues

	Years ended December 31,
Cost of revenue from continuing operations (In thousands)	2013		2014		2015
Bandwidth costs		28,174		33,545		37,218
Content costs, including amortization		1,061		—		338
Payment handling fees		12,097		11,305		9,087
Depreciation of servers and other equipment		3,801		5,102		4,873
Games revenue sharing costs and others (note a)		5,125		5,803		8,518
Total		50,258		55,755		60,034

Note a: gaming revenue share costs and others mainly include gaming sharing costs and cost of ZQB.

Redeemable convertible preferred shares (Tables)

12 Months Ended

Dec. 31, 2015

Subscription Rights [Member]

Series E Preferred Shares [Member] | Convertible Redeemable Preferred Shares [Member]

	March 5, 2014			April 24, 2014
Spot price⁽¹⁾		3.31 - 4.65			3.39 - 4.64
Risk-free interest rate⁽²⁾		0.04	%		0.02	%
Volatility rate⁽³⁾		38.12	%		42.74	%
Dividend yield⁽⁴⁾		—			—

(1)

Spot price – based on the fair value of 100 percent equity interest of the Company which is allocated to preferred shares and common shares of the Company as at the valuation date under different scenarios. The probability of the occurrence of an IPO is assumed to be 80%, the probability of the occurrence of a liquidation event is assumed to be 10% and the probability of the occurrence of a redemption event is assumed to be 10%.

(2)

Risk-free interest rate – based on the US Treasury Bond & Notes BFV curve from Bloomberg as at the valuation date.

(3)

Volatility – based on the average historical volatility of the comparable companies from Bloomberg as at the valuation date.

(4)

The Company has no history or expectation of paying dividends on its common shares.

Summary of Redeemable Convertible Preferred Shares

(In thousands)	December 31, 2015
Beginning balance		—
Addition		275,314
Exercise of Series E subsequent sale rights		28,568
BCF upon Series E		(53,486	)
Amortisation of BCF of Series E		4,139
Accretion of Series E to convertible redeemable preferred shares redemption value		12,754
Acceleration of amortization of BCF of Series E upon IPO		49,346
Deemed dividend to preferred shareholders upon IPO		27,396
Converted to common shares upon IPO		(344,031	)
Ending balance		—

Series D Preferred Stock [Member] | Convertible Redeemable Preferred Shares [Member]

Summary of Redeemable Convertible Preferred Shares

	Years ended December 31,2013		Years ended December 31,2014
Beginning balance		35,990		40,290
Deemed dividend to Series D shareholder from its modification		—		279
Accretion of Series D to convertible redeemable preferred shares redemption value		4,300		1,870
Repurchase of preferred shares		—		(15,003	)
Deemed dividend to preferred shareholders upon IPO		—		4,008
Converted to common shares upon IPO		—		(31,444	)
Ending balance		40,290		—

Series D Warrants [Member]

Series E Warrants [Member]

	December 31, 2013			February 6, 2014
Spot price⁽¹⁾		4.36			4.47
Risk-free interest rate⁽²⁾		0.05	%		0	%*
Volatility rate⁽³⁾		30.33	%		0	%*
Dividend yield⁽⁴⁾		—			—

Given that the maturity date of Series D warrant was February 6, 2014, the volatility rate and risk-free interest rate did not affect the valuation of the warrant on February 6, 2014.

(1)

(2)

Risk-free interest rate – based on the US Treasury Bond & Notes BFV curve from Bloomberg as at the valuation date.

(3)

Volatility – based on the average historical volatility of the comparable companies from Bloomberg as at the valuation date.

(4)

The Company has no history or expectation of paying dividends on its common shares.

Series E Warrants [Member] | Convertible Redeemable Preferred Shares [Member]

	March 5, 2014
Spot price⁽¹⁾		3.31 - 4.65
Risk-free interest rate⁽²⁾		0.04% - 0.12	%
Volatility rate⁽³⁾		38.39% - 38.81	%
Dividend yield⁽⁴⁾		—

(1)

(2)

Risk-free interest rate – based on the US Treasury Bond & Notes BFV curve from Bloomberg as at the valuation date.

(3)

Volatility – based on the average historical volatility of the comparable companies from Bloomberg as at the valuation date.

(4)

The Company has no history or expectation of paying dividends on its common shares.

Schedule of share repurchase activity

	March 5, 2014
Spot price⁽¹⁾		4.50 - 4.65
Risk-free interest rate⁽²⁾		0.12	%
Volatility rate⁽³⁾		38.81	%
Dividend yield⁽⁴⁾		—

(1)

(2)

Risk-free interest rate – based on the US Treasury Bond & Notes BFV curve from Bloomberg as at the valuation date.

(3)

Volatility – based on the average historical volatility of the comparable companies from Bloomberg as at the valuation date.

(4)

The Company has no history or expectation of paying dividends on its common shares.

Repurchase of shares (Tables)

12 Months Ended

Dec. 31, 2015

Repurchase of shares [Abstract]

Periods	Total Number of ADS Purchased		Average Price Paid Per ADS		Total Number of ADSs Purchased as Part of the Publicly Announced Plan		Approximate Dollar Value of ADSs that May Yet Be Purchased Under the Plan(note b)
March 12 - March 31 (note a)		192,803		6.44		192,803		2,814,715
April 7 – April 7		1,000		6.65		1,000		2,813,715
September 29 – September 30		2,940		7.13		2,940		2,810,775
December 18 – December 30		16,876		6.94		16,876		2,793,899
Total		213,619		—		213,619		2,793,899

Note a

Note b

Due to the expiration of the Repurchase Program, such amount is no longer available for repurchase after December 31, 2015.

Share-based compensation (Tables)

12 Months Ended

Dec. 31, 2015

Summary of Share Option Activity


	Number of share options			Weighted average exercise price (USD)		Weighted- average grant-date fair value (USD)		Weighted average remaining contractual life (years)		Aggregate intrinsic value (in thousands)
Outstanding, December 31, 2012		20,222,662			1.30				2.82		40,788
Granted		1,076,761			3.33		1.27
Forfeited		(326,647	)		3.32
Outstanding, December 31, 2013		20,972,776			1.37		—		2.03		39,420
Vested and expected to vest at December 31, 2013		20,701,286			1.32		0.40		1.89		41,014
Exercisable at December 31, 2013		19,382,156			1.17		0.31		1.67		40,771
Granted		1,566,381			3.23		1.01
Forfeited		(371,989	)		3.96
Expired		(1,116,531	)		0.26
Converted to restricted shares		(3,776,711	)		3.14
Exercised		(7,333,641	)		0.18
Outstanding, December 31, 2014		9,940,285			1.88				1.95		3,067
Vested and expected to vest at December 31, 2014		9,642,307			1.86		0.49		1.87		3,057
Exercisable at December 31, 2014		9,129,958			1.81		0.41		1.49		3,042
Granted		561,705			0.88		0.76
Forfeited		(1,494,922	)		3.22
Expired		(3,606,304	)		1.78
Converted to restricted shares		(80,000	)		2.40
Exercised		(3,189,944	)		0.25				4.46		556
Outstanding, December 31, 2015		2,130,820			2.13
Vested and expected to vest at December 31, 2015		1,008,645			1.76		0.73		4.62		464
Exercisable at December 31, 2015		1,430,870			2.16		0.86		4.03		406

Schedule of Fair Values of Stock Options Granted


Years ended December 31,	2013	2014	2015
Risk-free interest rate(1)	0.77% to 1.76%	0.77% to 1.76%	0.77% to 1.76%
Dividend yield(2)	—	—	—
Volatility rate(3)	43.8% to 51.3%	40.07% to 43.3%	40.07% to 43.3%
Expected term (in years)(4)	4.58	4.13 to 4.58	4.07 to 5.57

(1)	The risk-free interest rate of periods within the contractual life of the share option is based on the USD denominated China Government Bond yield as at the valuation dates.

(2)	The Company has no history or expectation of paying dividends on its common shares.

(3)	Expected volatility is estimated based on the average of historical volatilities of the comparable companies in the same industry as at the valuation dates.

(4)	The expected term is developed by assuming the share options will be exercised in the middle point between the vesting dates and maturity dates.

Schedule of Recognized Compensation Costs


	Years ended December 31,
(In thousands)	2013		2014		2015
Sales and marketing expenses		43		66		131
General and administrative expenses		1,080		6,407		6,701
Research and development expenses		973		1,171		2,896
Total		2,096		7,644		9,728

2013 Plan [Member]

Summary of Restricted Shares Activities


	Number of restricted shares			Weighted-Average Grant-Date Fair Value
Unvested at January 1, 2014:		8,095,238
Granted		4,233,558			2.89
Vested		(1,563,222	)
Forfeited		(3,564,796	)
Unvested at December 31, 2014		7,200,778
Vested		(2,627,815	)
Forfeited		(776,565	)
Unvested at December 31, 2015		3,796,398
Vested and expected to vest at December 31, 2015		3,226,939

2010 share incentive plan [Member]

Summary of Restricted Shares Activities


	Number of restricted shares			Weighted-Average Grant-Date Fair Value
Unvested at January 1, 2014:		—
Converted from share options		1,505,787			1.71
Vested		—
Forfeited		—
Unvested at January 1, 2015:		1,505,787
Converted from share options		80,000			1.71
Vested		(390,560	)
Forfeited		(763,010	)
Unvested at December 31, 2015		432,217
Vested and expected to vest at December 31, 2015		367,384

2014 Plan [Member]

Summary of Restricted Shares Activities


	Number of restricted shares			Weighted-Average Grant-Date Fair Value
Unvested at January 1,2014		—
Granted		3,896,500			1.77
Unvested at January 1, 2015		3,896,500
Granted		3,890,500			1.53
Vested		(859,100	)
Forfeited		(1,166,500	)
Unvested at December 31, 2015		5,761,400
Vested and expected to vest at December 31, 2015		4,897,100

Basic and diluted net income / (loss) per share (Tables)

12 Months Ended

Dec. 31, 2015

Basic and diluted net (loss) / income per share [Abstract]

Schedule of Basic and Diluted Net (Loss) / Income Per Share

(Amounts expressed in thousands of United States dollars (“USD”), except for number of shares and per share data)	Years ended December 31,
	2013			2014			2015
Numerator:
Net income/(loss) from continuing operations		22,951			28,269			(2,370	)
Net loss from discontinued operations		(12,572	)		(18,407	)		(12,096	)
Net income / (loss)		10,379			9,862			(14,466	)
Less: Net (loss) attributable to the non-controlling interest		(283	)		(950	)		(1,299	)
Net income/(loss) attributable to Xunlei Limited		10,662			10,812			(13,167	)
Accretion of Series D to convertible redeemable preferred shares redemption value		(4,300	)		(1,870	)		—
Contingent beneficial conversion feature of series C to one Series C shareholder		—			(57	)		—
Deemed dividend to Series D shareholder from its modification		—			(279	)		—
Accretion of Series E to convertible redeemable preferred shares redemption value		—			(12,754	)		—
Amortization of beneficial conversion feature of Series E		—			(4,139	)		—
Deemed dividend to certain shareholders from repurchase of shares		—			(14,926	)		—
Acceleration of amortization of beneficial conversion feature of Series E upon initial public offering		—			(49,346	)		—
Deemed dividend to preferred shareholders upon IPO		—			(32,807	)		—
Allocation of net income to participating preferred shareholders		(4,094	)		—			—
Net income/(loss) attributable to Xunlei Limited's common shareholders		2,268			(105,366	)		(13,167	)
Numerator of basic net income/(loss) per share from continuing operations		14,840			(86,959	)		(1,071	)
Numerator of basic net loss per share from discontinued operations		(12,572	)		(18,407	)		(12,096	)
Dilutive effect of warrant		(1,531	)		—			—
Numerator for diluted income/(loss) per share from continuing operations		13,309			(86,959	)		(1,071	)
Numerator for diluted loss per share from discontinued operations		(12,572	)		(18,407	)		(12,096	)
Denominator:
Denominator for basic net income/(loss) per share-weighted average shares outstanding		61,447,372			194,711,227			335,987,595
Dilutive effect of warrants		2,218,935			—			—
Dilutive effect of share options and restricted shares		12,399,591			—			—
Denominator for diluted net income/(loss) per share		76,065,898			194,711,227			335,987,595
Basic net income/(loss) per share from continuing operations		0.24			(0.45	)		(0.00	)
Basic net loss per share from discontinued operations		(0.20	)		(0.09	)		(0.04	)
Diluted net income/(loss) per share from continuing operations		0.18			(0.45	)		(0.00	)
Diluted net loss per share from discontinued operations		(0.17	)		(0.09	)		(0.04	)

Schedule of Anti-dilutive Shares Excluded from Computation of Diluted Net Income per Common Share


	Years ended December 31,
	2013		2014		2015
Preferred shares—weighted average		110,953,534		93,213,683		—
Share options and restricted shares —weighted average		2,513,017		9,041,434		1,673,342

Related party transactions (Tables)

12 Months Ended

Dec. 31, 2015

Schedule of Relationship Between Related Parties with their Groups


Related Party		Relationship with the Group
Zhuhai Qianyou		Equity investment of the Group
Hao Cheng		Co-founder and shareholder of the Group
Chuan Wang		Director of the Company
Shenglong Zou		Co-founder and shareholder of the Group
Beijing Millet technology Co., LTD (“Beijing Xiaomi”)		Company owned by a shareholder of the Group
Leading Advice Holdings Limited		Company owned by a Co-founder and shareholder of the Group
Vantage Point Global Limited		Shareholder of the Company
Aiden & Lasmine Limited		Shareholder of the Company
Kingsoft Corporation Limited		Shareholder of the Company

Schedule of Significant Related Party Transactions


	Years ended December 31,
(In thousands)	2013		2014		2015
Game sharing costs paid and payable to Zhuhai Qianyou (note a)		1,760		402		127
Advance to Hao Cheng		85		—		—
Repayment from Hao Cheng		—		85		—
Technology service revenue from Beijing Xiaomi		—		303		344
Advertisement revenue from Beijing Xiaomi		—		871		—
Advance to Shenglong Zou		—		10		—
Advance to Chuan Wang		—		7		—
Accrued to Aiden & Jasmine Limited (note b)		—		1,125		54
Accrued to Vantage Point Global Limited (note b)		—		3,012		146

Schedule of Amount Due to from Related Party


(In thousands)	December 31, 2013		December 31, 2014		December 31, 2015
Amounts due to related parties
Accounts payable to Zhuhai Qianyou		225		84		38
Long-term payable to Aiden & Lasmine Limited (note 16)		—		1,125		1,179
Long-term payable to Vantage Point Global Limited (note 16)		—		3,012		3,158

(In thousands)	December 31, 2013		December 31, 2014		December 31, 2015
Amounts due from related parties
Accounts receivable from Beijing Xiaomi		—		5		30
Other receivable from Hao Cheng		85		—		—
Other receivable from Shenglong Zou		—		10		9
Other receivable from Chuan Wang		—		7		6

Taxation (Tables)

12 Months Ended

Dec. 31, 2015

Taxation [Abstract]

Schedule of Current and Deferred Portions of Income Tax Expense


Continuing operations	Years ended December 31,
(In thousands)	2013		2014		2015
Current income tax expenses		175		397		289
Deferred income tax benefits		385		66		(1,175	)
Taxation for the year		560		463		(886	)

Summary of Aggregate Amount and Per Share Effect of Tax Holiday


	Years ended December 31,
	2013		2014		2015
Aggregate dollar effect (in thousands)		4,638		2,784		(830	)
Per share effect—basic		0.08		0.01		0.00
Per share effect—diluted		0.06		0.01		0.00

Reconciliation of Total Tax Expense (Benefit)


Continuing operations	Years ended December 31,
(In thousands)	2013			2014			2015
Income tax expense/(benefit) at PRC statutory rate (based on statutory tax rate applicable to enterprises in Shenzhen, China)		5,878			7,211			(438	)
Effects of differences in tax rates in different jurisdictions applicable to entities of the Group outside of the PRC		667			(838	)		2,400
Non-deductible expenses		102			714			14
Effect of Super Deduction available to Shenzhen Xunlei		(1,763	)		(1,365	)		-
Effect of tax holiday		(5,270	)		(4,613	)		(369	)
Change in valuation allowance of deferred tax assets		—			291			4,750
Effect on deferred tax assets due to change in tax rates		1,764			(103	)		(8)
Outside basis difference arising from VIE and its subsidiaries in the PRC		713			478			(2,174	)
Expiration of tax loss		31			51			290
Others		(1,562	)		(1,363	)		(5,351	)
Income tax expense/ (benefit)		560			463			(886	)

Summary of Changes in Deferred Tax Asset and Liability Balances


(In thousands)	December 31, 2014			December 31, 2015
Deferred tax assets, current portion:
Net operating loss carried forward (Note a)		315			417
Amortization of intangible assets arising from intragroup transactions (Note b)		69			95
Amortization of content copyrights (Note c)		1,675			—
Impairment of online game licenses		32			23
Impairment of long-term equity investment		—			115
Allowance for advance to suppliers		—			120
Valuation allowance		—			(81	)
Deferred tax assets, current portion, net		2,091			689
Deferred tax assets, non-current portion:
Net operating loss carried forward (Note a)		6,103			13,016
Allowance for doubtful accounts		796			—
Amortization of intangible assets arising from intragroup transactions (Note b)		105			54
Impairment of online game licenses		16			—
Amortization of Content Copyrights (Note c)		4,133			—
Valuation allowance		(291	)		(4,477	)
Deferred tax assets, non-current portion, net		10,862			8,593

Deferred tax liability, non-current portion:
Outside basis difference (Note d)		(8,552	)		(6,378	)

Note a:


(In thousands)
2016			1,398
2017			889
2018			6,191
2019			3,647
2020 and thereafter			41,036
			53,161

Note b:

Note c:

Note d:

Summary of Net Operating Tax Loss Carryforwards


(In thousands)
2016			1,398
2017			889
2018			6,191
2019			3,647
2020 and thereafter			41,036
			53,161

Schedule of Movement of Valuation Allowance


	Years ended December 31,
(In thousands)	2013			2014			2015
Beginning balance		(43	)		—			(291	)
Additions		—			(291	)		(4,268	)
Write-off		43			—			—
Ending balance		—			(291	)		(4,559	)

Fair value measurements (Tables)

12 Months Ended

Dec. 31, 2015

Fair value measurements [Abstract]

Schedule of Financial Instruments Measured at Fair Value


	Fair value measurements as at December 31, 2014
(In thousands)	Total		Quoted prices in active market for indentifical assets (Level 1)		Significant other observable inputs (Level 2)		Significant observable inputs (Level 3)
Cash equivalent: time deposits with original maturities less than three months		31,117		—		31,117		—
Short term investments:
Investments in financial instruments		29,427		—		29,427		—
		60,544		—		60,544		—

	Fair value measurements as at December 31, 2015
(In thousands)	Total		Quoted prices in active market for indentifical assets (Level 1)		Significant other observable inputs (Level 2)		Significant observable inputs (Level 3)
Cash equivalent: time deposits with original maturities less than three months		314,357		—		314,357		—
Short term investments:
Investments in financial instruments		70,328		—		70,328		—
		384,685		—		384,685		—

Other income, net (Tables)

12 Months Ended

Dec. 31, 2015

Other income, net [Abstract]

Schedule of Other Income, Net


Continuing Operations	Years ended December 31,
(In thousands)	2013			2014			2015
Subsidy income		1,393			2,236			1,902
Fair value changes of warrants liabilities		1,531			8,054			—
Investment income from short-term investments		1,847			3,471			3,666
Dilution gains arising from deemed disposal of investment (Note 11)		—			449			702
Investment loss impairment of long-term investment		—			—			(802	)
Exchange losses		(252	)		(176	)		(2,771	)
Settlement income		249			489			755
Others		(89	)		(557	)		175
		4,679			13,966			3,627

Commitments and contingencies (Tables)

12 Months Ended

Dec. 31, 2015

Rental commitments [Member]

Future Minimum Payments under Non-Cancellable Leases


(In thousands)
2016			751
2017			174
2018			—
			925

Bandwidth Lease Commitments [Member]

Future Minimum Payments under Non-Cancellable Leases


(In thousands)
2016			15,715
2017			9,965
			25,680

Certain risks and concentration (Tables)

12 Months Ended

Dec. 31, 2015

Certain risks and concentration [Abstract]

Schedule of Consolidated Financial Information of VIEs and VIE's Subsidiaries


	As of December 31,
(In thousands)	2014		2015
Current assets:
Cash and cash equivalents		43,849		32,461
Short-term investments		28,575		69,522
Accounts receivable, net		5,508		11,573
Due from related parties		6		30
Deferred tax assets		1,358		351
Inventories				480
Prepayments and other current assets		10,147		31,659
Held for sale assets		46,325		—
Total current assets		135,768		146,076
Non-current assets:
Equity method investments		5,498		9,884
Deferred tax assets		8,262		6,791
Property and equipment, net		16,370		17,991
Construction in progress		—		14
Intangible assets, net		16,635		14,297
Goodwill		23,237		21,896
Prepayments for content copyrights		1,239		—
Other long-term prepayments		5,795		7,430
Total non-current assets		77,076		78,303
Total assets		212,844		224,379
Current liabilities:
Accounts payables		24,504		33,262
Due to a related party		84		38
Deferred revenue and income, current portion		27,534		24,902
Income tax payable		2,554		2,407
Accrued liabilities and other payables		85,701		131,312
Held for sale liabilities		26,438		-
Total current liabilities		166,815		191,921
Non-current liabilities:
Deferred revenue and income, non-current portion		6,452		4,751
Total non-current liabilities		6,452		4,751
Total liabilities		173,267		196,672


	Years ended December 31,
(In thousands)	2013		2014		2015
Net revenue from continuing operations		116,381		132,515		129,198
Net income / (loss) attributable to Xunlei Limited		13,940		12,677		(6,408	)


	Years ended December 31,
(In thousands)	2013			2014			2015
Net cash provided by operating activities		92,580			70,822			41,723
Net cash used in investing activities		(66,243	)		(78,335	)		(51,721	)
Net cash provided by financing activities		2,487			856			1,055
		28,824			(6,657	)		(8,943	)

Tabular disclosure of the significant judgments and assumptions made in determining whether a variable interest (as defined) held by the entity requires the variable interest entity (VIE) (as defined) to be consolidated and (or) disclose information about its involvement with the VIE, individually or in aggregate (as applicable); the nature of restrictions, if any, on the consolidated VIE's assets and on the settlement of its liabilities reported by an entity in its statement of financial position, including the carrying amounts of such assets and liabilities; the nature of, and changes in, the risks associated with involvement in the VIE; how involvement with the VIE affects the entity's financial position, financial performance, and cash flows; the lack of recourse if creditors (or beneficial interest holders) of the consolidated VIE have no recourse to the general credit of the primary beneficiary (if applicable); the terms of arrangements, giving consideration to both explicit arrangements and implicit variable interests, if any, that could require the entity to provide financial support to the VIE, including events or circumstances that could expose the entity to a loss; the methodology used by the entity for determining whether or not it is the primary beneficiary of the variable interest entity; the significant factors considered and judgments made in determining that the power to direct the activities of a VIE that most significantly impact the VIE's economic performance are shared (as defined); the carrying amounts and classification of assets and liabilities of the VIE included in the statement of financial position; the entity's maximum exposure to loss, if any, as a result of its involvement with the VIE, including how the maximum exposure is determined and significant sources of the entity's exposure to the VIE; a comparison of the carrying amounts of the assets and liabilities and the entity's maximum exposure to loss; information about any liquidity arrangements, guarantees, and (or) other commitments by third parties that may affect the fair value or risk of the entity's variable interest in the VIE; whether or not the entity has provided financial support or other support (explicitly or implicitly) to the VIE that it was not previously contractually required to provide or whether the entity intends to provide that support, including the type and amount of the support and the primary reasons for providing the support; and supplemental information the entity determines necessary to provide.

Additional information: condensed financial statements of the Company [Abstract]

Additional information: condensed financial statements of the Company (Tables)

12 Months Ended

Dec. 31, 2015

Schedule of Condensed Balance Sheets

Condensed balance sheets


(In thousands)	December 31, 2014		December 31, 2015
Assets
Current assets:
Cash and cash equivalents		309,457		292,175
Due from subsidiaries and consolidated VIEs		67,397		92,864
Prepayments and other current assets		6,709		1,090
Total current assets		383,563		386,129
Non-current assets:
Intangible assets, net		394		—
Investments in subsidiaries and consolidated VIEs		82,360		68,481
Total assets		466,317		454,610
Liabilities
Current liabilities:
Accounts payable		101		101
Deferred revenue and income, current portion		211		211
Accrued liabilities and other payables		2,328		1,735
Total current liabilities		2,640		2,047
Non-current liabilities:
Deferred revenue and income, non-current		842		632
Warrants liabilities		—		—
Due to related parties, non-current portion		4,137		4,337
Other long-term payable		807		845
Total liabilities		8,426		7,861
Commitments and contingencies
Shareholders' equity
Common shares		82		85
Treasury shares 30,274,602 shares as at December 31, 2014 and 29,558,094 shares as at December 31, 2015		7		7
Other shareholders' equity		457,802		446,657
Total Xunlei Limited's shareholders' equity		457,891		446,749
Total liabilities, mezzanine equity and shareholders' equity		466,317		454,610

Schedule of Condensed Statements of Operations

Condensed statements of operations


	Years ended December 31,
(In thousands)	2013			2014			2015
Revenues		—			—			—
Cost of revenues		(2,264	)		(1,673	)		(131	)
Gross profit		(2,264	)		(1,673	)		(131	)
Operating expenses
Research and development expenses		—			—			—
Sales and marketing expenses		(241	)		—			—
General and administrative expenses		(972	)		(996	)		(1,314	)
Total operating expenses		(1,213	)		(996	)		(1,314	)
Operating loss		(3,477	)		(2,669	)		(1,445	)
Interest income		706			6,171			5,318
Interest expense		—			(163	)		(239	)
Other income, net		1,651			7,602			(3,261)
Income / (loss) from subsidiaries and consolidated VIEs		11,782			(129	)		(13,540	)
Income / (loss) before income tax		10,662			10,812			(13,167	)
Income tax		—			—			—
Net income / (loss)		10,662			10,812			(13,167	)
Net income attributable to the non-controlling interest		—			—			—
Net income / (loss) attributable to Xunlei Limited's common shareholders		10,662			10,812			(13,167	)

Schedule of Condensed Statement of Cash Flows

Condensed statement of cash flows


	Years ended December 31,
(In thousands)	2013			2014			2015
Cash flows from operating activities
Net cash generated from/(used in) operating activities		4,708			(41,485	)		(26,069	)
Cash flows from investing activities
Net cash used in investing activities		(3,843	)		(10,333	)		3,812
Cash flows from financing activities
Net cash generated from/(used in) financing activities		(2,242	)		332,412			4,975
Net (decrease) / increase in cash and cash equivalents		(1,377	)		280,594			(17,282	)
Cash and cash equivalents at beginning of year		30,240			28,863			309,457
Effect of exchange rates on cash and cash equivalents		—			—			—
Cash and cash equivalents at end of year		28,863			309,457			292,175

Organization and Nature of Operations - Additional Information (Detail) ¥ / shares in Units, $ in Thousands, ¥ in Millions			1 Months Ended		12 Months Ended
	Jun. 24, 2014 USD ($) shares	Dec. 24, 2013	Nov. 30, 2014 shares	May. 31, 2011 CNY (¥)	Dec. 31, 2015 USD ($)	Dec. 31, 2015 CNY (¥) ¥ / shares	Dec. 31, 2014 USD ($)	Dec. 31, 2013 USD ($)
Variable Interest Entity [Line Items]
Date of incorporation					Feb. 03, 2005	Feb. 03, 2005
Number of year's power of attorney retained					10 years	10 years
Percentage of pre-tax operating profit					80.00%	80.00%
Service fees payable \| $					$ 1,235		$ 1,228
Date of completion of IPO					Jun. 24, 2014	Jun. 24, 2014
Number of securities issued \| shares			10,000,000
Net proceeds received from IPO \| $							$ 93,881
American Depository Shares (ADSs) [Member]
Variable Interest Entity [Line Items]
Date of completion of IPO					Jun. 24, 2014	Jun. 24, 2014
Number of securities issued \| shares	8,412,250
Number of shares equivalent to each ADS	5
Net proceeds received from IPO \| $	$ 89,665
Exclusive Technology Support and Services Agreement [Member]
Variable Interest Entity [Line Items]
Percentage of pre-tax operating profit					20.00%	20.00%
Exclusive Technology Consulting and Training Agreement [Member]
Variable Interest Entity [Line Items]
Percentage of pre-tax operating profit					20.00%	20.00%
Software and Proprietary Technology License Contract [Member]
Variable Interest Entity [Line Items]
Percentage of pre-tax operating profit					40.00%	40.00%
Giganology (Shenzhen) Co. Ltd [Member]
Variable Interest Entity [Line Items]
Date of incorporation					Jun. 30, 2005	Jun. 30, 2005
Termination of agreement, notice period					30 days	30 days
Automated extended period of agreement					10 years	10 years
Agreement expiration date					2022	2022
Giganology (Shenzhen) Co. Ltd [Member] \| Exclusive Technology Support and Services Agreement [Member]
Variable Interest Entity [Line Items]
Term agreement expiration year					2025	2025
Giganology (Shenzhen) Co. Ltd [Member] \| Exclusive Technology Consulting and Training Agreement [Member]
Variable Interest Entity [Line Items]
Term agreement expiration year					2025	2025
Shenzhen Xunlei and Xunlei Computer [Member]
Variable Interest Entity [Line Items]
License agreement, term		2 years
Agreement between Giganology Shenzhen and Mr. Sean Shenglong Zou [Member]
Variable Interest Entity [Line Items]
Agreement term years					2 years	2 years
Loan agreements description					The term of this agreement last for two years from the date it was signed, and will be automatically extended afterwards on a yearly basis until Mr. Zou has repaid the loan in its entirety in accordance with the loan agreement	The term of this agreement last for two years from the date it was signed, and will be automatically extended afterwards on a yearly basis until Mr. Zou has repaid the loan in its entirety in accordance with the loan agreement
Additional interest-free loans						¥ 20
Increase in registered capital						30
Agreement between Giganology Shenzhen and Shareholders of Shenzhen Xunlei [Member]
Variable Interest Entity [Line Items]
Interest-free loans						¥ 9
Agreement term years					2 years	2 years
Loan agreements description					The term of these agreements last for two years from the date it was signed, and will be automatically extended afterwards on a yearly basis until each shareholder of Shenzhen Xunlei has repaid the loans in its entirety in accordance with the loan agreement	The term of these agreements last for two years from the date it was signed, and will be automatically extended afterwards on a yearly basis until each shareholder of Shenzhen Xunlei has repaid the loans in its entirety in accordance with the loan agreement
Agreement between Giganology Shenzhen and Shenzhen Xunlei [Member]
Variable Interest Entity [Line Items]
Increase in registered capital				¥ 20
Term agreement expiration year					2016	2016
Call Option Agreement [Member] \| Giganology (Shenzhen) Co. Ltd [Member]
Variable Interest Entity [Line Items]
Agreement expiration date					2022	2022
Outstanding share, purchase price per share \| ¥ / shares						¥ 1

Organization and Nature of Operations - Accompanying Consolidated Financial Statements Include Financial Statements of Company, Subsidiaries, Variable Interest Entity ("VIE") and VIE's Subsidiaries (Detail)	12 Months Ended
	Dec. 31, 2015
Variable Interest Entity [Line Items]
Date of incorporation	Feb. 03, 2005
Shenzhen Xunlei Networking Technologies, Co., Ltd [Member]
Variable Interest Entity [Line Items]
Place of incorporation	China
Date of incorporation	Jan. 31, 2003
Relationship	VIE
Percentage of direct or indirect economic ownership	100.00%
Principal activities	Development of software, provision of online and related advertising, membership subscription and online game services; as well as sales of software licenses
Giganology (Shenzhen) Co. Ltd [Member]
Variable Interest Entity [Line Items]
Place of incorporation	China
Date of incorporation	Jun. 30, 2005
Relationship	Subsidiary
Percentage of direct or indirect economic ownership	100.00%
Principal activities	Development of computer software and provision of information technology services to related companies
Shenzhen Fengdong Networking Technologies, Co., Ltd. [Member]
Variable Interest Entity [Line Items]
Place of incorporation	China
Date of incorporation	Dec. 31, 2005
Relationship	VIE's subsidiary
Percentage of direct or indirect economic ownership	100.00%
Principal activities	Development of software for related companies
Shenzhen Xunlei Kankan Information Technologies Co., Ltd. [Member]
Variable Interest Entity [Line Items]
Place of incorporation	China
Date of incorporation	Aug. 31, 2008
Relationship	VIE's subsidiary
Percentage of direct or indirect economic ownership	100.00%
Principal activities	Development of software for related companies (note a)
Xunlei Software (Beijing) Co., Ltd. [Member]
Variable Interest Entity [Line Items]
Place of incorporation	China
Date of incorporation	Jun. 30, 2009
Relationship	VIE's subsidiary
Percentage of direct or indirect economic ownership	100.00%
Principal activities	Development of software for related companies
Xunlei Software (Shenzhen) Co., Ltd. [Member]
Variable Interest Entity [Line Items]
Place of incorporation	China
Date of incorporation	Jan. 31, 2010
Relationship	VIE's subsidiary
Percentage of direct or indirect economic ownership	100.00%
Principal activities	Provision of software technology development for related companies
Xunlei Software (Nanjing) Co., Ltd. [Member]
Variable Interest Entity [Line Items]
Place of incorporation	China
Date of incorporation	Jan. 31, 2010
Relationship	VIE's subsidiary
Percentage of direct or indirect economic ownership	100.00%
Principal activities	Development of computer software and online games for related companies and provision of advertising services (note b)
Xunlei Games Development (Shenzhen) Co., Ltd. [Member]
Variable Interest Entity [Line Items]
Place of incorporation	China
Date of incorporation	Feb. 28, 2010
Relationship	VIE's subsidiary
Percentage of direct or indirect economic ownership	70.00%
Principal activities	Development of online game and computer software for related companies and provision of advertising services
Xunlei Network Technologies Limited BVI [Member]
Variable Interest Entity [Line Items]
Place of incorporation	British Virgin Islands
Date of incorporation	Feb. 28, 2011
Relationship	Subsidiary
Percentage of direct or indirect economic ownership	100.00%
Principal activities	Holding company
Xunlei Network Technologies Limited HK [Member]
Variable Interest Entity [Line Items]
Place of incorporation	Hongkong
Date of incorporation	Mar. 31, 2011
Relationship	Subsidiary
Percentage of direct or indirect economic ownership	100.00%
Principal activities	Development computer software of related companies and provision of advertising services
Xunlei Computer (Shenzhen) Co., Ltd. [Member]
Variable Interest Entity [Line Items]
Place of incorporation	China
Date of incorporation	Nov. 30, 2011
Relationship	Subsidiary
Percentage of direct or indirect economic ownership	100.00%
Principal activities	Development of computer software and provision of information technology services to related companies
Shenzhen Onething Technologies Co Ltd [Member]
Variable Interest Entity [Line Items]
Place of incorporation	China
Date of incorporation	Sep. 30, 2013
Relationship	VIE's subsidiary
Percentage of direct or indirect economic ownership	100.00%
Principal activities	Development of computer software and provision of information technology services to related companies
Wangxin Century Technologies (Beijing) Co., Ltd [Member]
Variable Interest Entity [Line Items]
Place of incorporation	China
Date of incorporation	Oct. 31, 2015
Relationship	VIE's subsidiary
Percentage of direct or indirect economic ownership	100.00%
Principal activities	Development of computer software and provision of information technology services

Summary of Significant Accounting Policies - Additional Information (Detail) - USD ($) $ / shares in Units, $ in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Accounting Policies and General Information [Line Items]
Allowance for doubtful accounts	$ 126	$ 131
Impairment of long-term investments	$ 800	0	$ 0
Fair value of a reporting unit less than carrying amount, including goodwill	50.00%
Goodwill impairment losses	$ 0
Sales rebates provided to the agencies and advertisers	1,179	5,005	7,207
Content sub-licensing revenue from discontinued operations	2,929	9,218	7,369
Revenue	129,996	135,812	122,031
Net gains from barter transactions	137	1,556	1,020
Net proceeds from barter transactions	409	4,428	2,059
Barter transaction cost	247	2,606	915
Business tax and surcharge on barter transactions	25	266	124
External advertising and market promotion expenses from continuing operations	$ 8,089	$ 5,978	$ 5,056
Capitalization of software development costs
Interest and penalties net of tax recognized	$ 0	$ 0	$ 0
Income tax examination higher limit	15.00%
Value added tax on revenues	17.00%
Value added tax on sub-licensing revenues	6.00%
Employee benefit costs	$ 5,481	$ 3,818	$ 3,243
Statutory general reserve rate	10.00%
Statutory general reserve rate of registered capital	50.00%
Dividends declared	$ 0	$ 0	$ 0
Minimum [Member]
Accounting Policies and General Information [Line Items]
Amortization percentage of intangible assets	70.00%
Maximum [Member]
Accounting Policies and General Information [Line Items]
Amortization percentage of intangible assets	90.00%
Content Copyrights [Member]
Accounting Policies and General Information [Line Items]
Impairment of intangible assets	$ 0	$ 0	$ 0
Online game licenses [Member]
Accounting Policies and General Information [Line Items]
Other intangible assets, amortization period	3 years
Impairment of intangible assets	$ 770	$ 808	$ 808
Acquired computer software [Member]
Accounting Policies and General Information [Line Items]
Other intangible assets, amortization period	5 years
Internal use software development costs [Member]
Accounting Policies and General Information [Line Items]
Other intangible assets, amortization period	5 years
Domain name [Member]
Accounting Policies and General Information [Line Items]
Other intangible assets, amortization period	5 years
Land use right [Member]
Accounting Policies and General Information [Line Items]
Other intangible assets, amortization period	30 years

Summary of Significant Accounting Policies - Schedule of Property and Equipment Estimated Useful Life (Detail)	12 Months Ended
	Dec. 31, 2015
Servers and network equipment [Member]
Property, Plant and Equipment [Line Items]
Estimated useful lives	5 years
Residual rate	5.00%
Computer equipment [Member]
Property, Plant and Equipment [Line Items]
Estimated useful lives	5 years
Residual rate	5.00%
Furniture, fittings and office equipment [Member]
Property, Plant and Equipment [Line Items]
Estimated useful lives	5 years
Residual rate	5.00%
Motor vehicles [Member]
Property, Plant and Equipment [Line Items]
Estimated useful lives	5 years
Residual rate	5.00%
Leasehold improvements [Member]
Property, Plant and Equipment [Line Items]
Estimated useful lives	shorter of lease term or 3 years
Estimated useful lives	3 years

Summary of Significant Accounting Policies - Analysis of Different Types of Revenues (Detail) - USD ($)
$ in Thousands

12 Months Ended

Dec. 31, 2015

Dec. 31, 2014

Dec. 31, 2013

Revenue from continuing operations

Subscription revenue

$ 82,435

$ 98,189

$ 86,733

Advertising revenue

4,802

5,834

2,951

Other internet value-added services

^[1]

42,759

31,789

32,347

Total

$ 129,996

$ 135,812

$ 122,031

[1]	Other internet value-added services mainly comprise revenue from online game, traffic referral programs, technical services regarding online acceleration, online sales revenue, sales of software licenses, and revenue from project crystal (including CDN revenue and revenue from ZQB).

Summary of Significant Accounting Policies - Schedule of Balances of Registered Capital, Additional Paid-in-Capital and Statutory Reserves (Detail) - USD ($) $ in Thousands	Dec. 31, 2015	Dec. 31, 2014
Accounting Policies and General Information [Line Items]
Additional paid-in capital	$ 458,270	$ 446,202
Statutory reserves	5,132	5,132
China [Member]
Accounting Policies and General Information [Line Items]
Registered capital	112,435	54,467
Additional paid-in capital	161	161
Statutory reserves	5,132	5,132
Total	$ 117,728	$ 59,760

Discontinued operations (Schedule of Discontinued Operations) (Details) - USD ($) $ in Thousands		12 Months Ended
	Jul. 15, 2015	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Results of the discontinued operation
Income tax benefit / (expense)		$ (2,048)	$ 1,923	$ 1,207
Current liabilities
Total current liabilities			27,367
Xunlei Kankan [Member]
Results of the discontinued operation
Revenues, net of rebates and discounts		$ 15,677	47,075	58,213
Business taxes and surcharges		(447)	(1,480)	(1,746)
Net revenues		15,230	45,595	56,467
Cost of revenues		(13,240)	(42,704)	(43,002)
Gross profit		1,990	2,891	13,465
Research and development expenses		(3,245)	(6,035)	(7,092)
Sales and marketing expenses		(7,384)	(15,726)	(16,762)
General and administrative expenses		(3,051)	(3,016)	(4,410)
Total operating expenses		(13,680)	(24,777)	(28,264)
Net gain from exchanges of content copyrights		137	1,556	1,020
Operating loss		(11,553)	$ (20,330)	$ (13,779)
Gain on disposal recognized	$ 1,505	1,505
Income tax benefit / (expense)		(2,048)	$ 1,923	$ 1,207
Loss from discontinued operations		(12,096)	(18,407)	(12,572)
Assets
Accounts receivable, net			23,741
Prepayments and other current assets			670
Copyrights related to content-current portion			16,013
Property and equipment, net			1,111
Intangible assets			4,997
Prepayment for content			456
Other long-term prepayments and receivables			57
Total assets held for sale			47,045
Current liabilities
Accounts payables			25,267
Deferred revenue, current portion			1,018
Accrued liabilities and other payables			1,082
Total liabilities held for sale			27,367
Cash flows generated from/ (used in) discontinued operations
Net cash generated from/(used in) operating activities		(1,554)	2,293	10,439
Net cash (used in)/generated from investing activities		$ 9,135	$ (34,661)	$ (16,402)
Net cash used in financing activities
Net cash flow for the year		$ 7,581	$ (32,368)	$ (5,963)

Cash and Cash Equivalents - Summary of Cash on Hand and Cash Held at Bank (Detail) ¥ in Thousands, HKD in Thousands, $ in Thousands	Dec. 31, 2015 CNY (¥)	Dec. 31, 2015 USD ($)	Dec. 31, 2015 HKD	Dec. 31, 2014 CNY (¥)	Dec. 31, 2014 USD ($)	Dec. 31, 2014 HKD	Dec. 31, 2013 USD ($)	Dec. 31, 2012 USD ($)
Cash and Cash Equivalents [Line Items]
Cash on hand and cash held at bank		$ 361,777			$ 404,275		$ 93,906	$ 81,906
RMB [Member]
Cash and Cash Equivalents [Line Items]
Cash on hand and cash held at bank	¥ 606,845	93,454		¥ 674,001	110,149
USD [Member]
Cash and Cash Equivalents [Line Items]
Cash on hand and cash held at bank		268,198			294,036
HKD [Member]
Cash and Cash Equivalents [Line Items]
Cash on hand and cash held at bank		$ 125	HKD 969		$ 90	HKD 697

Cash and Cash Equivalents - Summary of Time Deposits (Detail) ¥ in Thousands, $ in Thousands	Dec. 31, 2015 CNY (¥)	Dec. 31, 2015 USD ($)	Dec. 31, 2014 CNY (¥)	Dec. 31, 2014 USD ($)
Cash and Cash Equivalents [Line Items]
Time deposits		$ 314,357		$ 31,117
RMB [Member]
Cash and Cash Equivalents [Line Items]
Time deposits	¥ 349,099	53,760	¥ 156,749	25,617
USD [Member]
Cash and Cash Equivalents [Line Items]
Time deposits		$ 260,597		$ 5,500

Short-Term Investments - Schedule of Short-Term Investments (Detail) - USD ($)
$ in Thousands

Dec. 31, 2015

Dec. 31, 2014

Schedule of Investments [Line Items]

Investments in financial instruments [Member]

$ 70,328

$ 29,427

Schedule of Investments [Line Items]

Interest-free loans to employees

^[1]

$ 70,328

$ 29,427

[1]	the investments were issued by commercial banks in China with a variable interest rate indexed to performance of underlying assets. Since these investments' maturity dates are within one year, they are classified as short-term investments.

Accounts Receivable, Net - Schedule of Accounts Receivable (Detail) - USD ($) $ in Thousands	Dec. 31, 2015	Dec. 31, 2014
Continuing operations
Accounts receivable	$ 11,392	$ 5,311
Less: Allowance for doubtful accounts	(126)	(131)
Accounts receivable, net	$ 11,266	$ 5,180

Accounts Receivable, Net - Additional Information (Detail) $ in Millions	12 Months Ended
	Dec. 31, 2015 USD ($) Customer	Dec. 31, 2014 USD ($) Customer
Accounts, Notes, Loans and Financing Receivable [Line Items]
Accounts receivable reserved \| $	$ 0.1	$ 0.1
Number of top customers \| Customer	10	10
Credit concentration risk [Member] \| Accounts receivable [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Accounts receivable, percentage	39.00%	37.00%

Accounts Receivable, Net - Schedule of Allowance for Doubtful Accounts (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Accounts receivable, net [Abstract]
Balance at beginning of the year	$ 131
Additions	$ 4	$ 523
Reversals
Write-off		(393)
Exchange difference	$ (9)	1
Balance at end of the year	$ 126	$ 131

Prepayments and other assets - Schedule of Prepayments and Other Assets (Detail) - USD ($)
$ in Thousands

Dec. 31, 2015

Dec. 31, 2014

Current portion:

Advance to suppliers

$ 882

$ 520

^[1]

$ 3,200

3,625

Low-interest loans to employees, current portion

^[2]

Advance to employees for business purposes

$ 957

585

Interest receivable

564

5,380

Rental and other deposits

224

774

Prepayment for share repurchase plan

^[3]

$ 712

1,000

Prepaid game sharing costs

458

Prepaid professional fees

900

Prepaid management insurance

$ 209

$ 179

Receivable from Nesound

^[4]

4,004

Prepayment for taxation

2,041

Others

275

$ 405

Total of prepayments and other current assets

$ 13,068

13,890

Non-current portion:

Prepayments for intangible assets

$ 1,532

Long term receivable

$ 1,812

Low-interest loans to employees, non-current portion

^[2]

833

$ 449

Total of long-term prepayments and other assets

7,431

5,795

Online game licenses [Member]

Non-current portion:

Prepayments for intangible assets

$ 4,786

$ 5,346

[1]	The Group had entered into loan contracts with certain employees as at December 31, 2014 and 2015, under which the Group provided interest-free loans to these employees. The loan amounts vary amongst different employees and are repayable on demand.
[2]	The Group had entered into loan contracts with certain employees as at December 31, 2014 and 2015, under which the Group provided low-interest loans to these employees. The loan amounts vary amongst different employees and are repayable in equal instalments on a monthly basis over the term of 10 years.
[3]	In December 2014, the Company announced a share repurchase program to purchase up to USD 20 million shares and prepaid USD 1 million to a security broker for this program. In December 2015, the Company announced a share repurchase program to purchase up to USD 20 million shares and prepaid USD 0.7 million to a security broker for this program.
[4]	The Group sold Kankan to Nesound in July 2015. There is a balance receivable remaining amounted USD 4,004 thousand which would be paid to the Group one year after the closing date.

Prepayments and other assets - Schedule of Prepayments and Other Assets (Parenthetical) (Detail) - USD ($)
$ in Thousands

12 Months Ended

Dec. 31, 2015

Dec. 31, 2014

Prepayments and other assets [Abstract]

Low-interest employee loan repayable period

10 years

Prepaid amount to security broker

$ 20,000

^[1]

$ 712

$ 1,000

[1]

In December 2014, the Company announced a share repurchase program to purchase up to USD 20 million shares and prepaid USD 1 million to a security broker for this program. In December 2015, the Company announced a share repurchase program to purchase up to USD 20 million shares and prepaid USD 0.7 million to a security broker for this program.

Property and Equipment - Schedule of Property and Equipment (Detail) - USD ($) $ in Thousands	Dec. 31, 2015	Dec. 31, 2014
Property, Plant and Equipment [Line Items]
Property plant and equipment, gross	$ 42,556	$ 36,738
Less: Accumulated depreciation	(24,534)	$ (20,330)
Construction in progress	14
Total	18,036	$ 16,408
Servers and network equipment [Member]
Property, Plant and Equipment [Line Items]
Property plant and equipment, gross	37,332	32,109
Computer equipment [Member]
Property, Plant and Equipment [Line Items]
Property plant and equipment, gross	1,544	1,947
Furniture, fittings and office equipment [Member]
Property, Plant and Equipment [Line Items]
Property plant and equipment, gross	856	651
Motor vehicles [Member]
Property, Plant and Equipment [Line Items]
Property plant and equipment, gross	320	339
Leasehold improvements [Member]
Property, Plant and Equipment [Line Items]
Property plant and equipment, gross	$ 2,504	$ 1,692

Property and Equipment - Summary of Depreciation Expense (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Property, Plant and Equipment [Line Items]
Depreciation expense	$ 5,646	$ 6,500	$ 5,112
Cost of Revenue [Member]
Property, Plant and Equipment [Line Items]
Depreciation expense	5,003	5,652	4,317
General and administrative expenses [Member]
Property, Plant and Equipment [Line Items]
Depreciation expense	628	715	690
Sales and marketing expenses [Member]
Property, Plant and Equipment [Line Items]
Depreciation expense	$ 15	$ 133	$ 105

Intangible assets, net - Schedule of Intangible Assets (Detail) - USD ($)
$ in Thousands

Dec. 31, 2015

Dec. 31, 2014

$ 21,732

$ 22,836

(7,529)

(6,928)

(770)

(808)

13,433

15,100

Land use right [Member]

5,123

5,279

$ (409)

$ (253)

$ 4,714

$ 5,026

Trademarks [Member]

5,812

6,168

$ (1,107)

$ (167)

Non-compete agreement [Member]

$ 4,705

$ 6,001

1,415

1,502

$ (472)

$ (252)

Technology (including right-to-use) [Member]

$ 943

$ 1,250

2,261

2,399

$ (377)

$ (100)

Acquired computer software [Member]

$ 1,884

$ 2,299

619

1,468

$ (255)

$ (1,141)

Internal use software development costs [Member]

$ 364

$ 327

675

716

$ (641)

$ (537)

Online game licenses [Member]

$ 34

$ 179

^[1]

5,827

5,304

^[1]

(4,268)

(4,478)

^[1]

(770)

(808)

^[1]

$ 789

$ 18

[1]

Intangible assets, net - Schedule of Intangible Assets (Parenthetical) (Detail) - USD ($) $ in Thousands	3 Months Ended
	Dec. 31, 2013	Sep. 30, 2013
Online game licenses [Member]
Finite-Lived Intangible Assets [Line Items]
Amount of revenue generated	$ 27	$ 303

Intangible assets, net - Schedule of Amortization Expense Recognized (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Finite-Lived Intangible Assets [Line Items]
Amortization expense	$ 2,668	$ 2,055	$ 1,638
Cost of Revenue [Member]
Finite-Lived Intangible Assets [Line Items]
Amortization expense	693	1,141	1,369
General and administrative expenses [Member]
Finite-Lived Intangible Assets [Line Items]
Amortization expense	386	372	$ 269
Research and development expenses [Member]
Finite-Lived Intangible Assets [Line Items]
Amortization expense	$ 1,589	$ 542

Intangible assets, net - Schedule of Estimated Aggregate Amortization Expense (Detail) $ in Thousands	Dec. 31, 2015 USD ($)
Finite-Lived Intangible Assets [Line Items]
2016	$ 2,234
2017	2,002
2018	1,688
2019	1,321
2020 and thereafter	$ 6,188

Intangible assets, net - Schedule of Weighted Average Amortization Periods of Intangible Assets (Detail)

12 Months Ended

Dec. 31, 2015

Dec. 31, 2014

Weighted average amortization periods of intangible assets

11 years 29 days

3 years 11 months 19 days

Content Copyrights [Member]

Weighted average amortization periods of intangible assets

^[1]

2 years 9 months 11 days

Land use right [Member]

Weighted average amortization periods of intangible assets

30 years

Trademarks [Member]

Weighted average amortization periods of intangible assets

7 years

Non-compete agreement [Member]

Weighted average amortization periods of intangible assets

4 years

Technology (including right-to-use) [Member]

Weighted average amortization periods of intangible assets

8 years

Acquired computer software [Member]

Weighted average amortization periods of intangible assets

5 years

Internal use software development costs [Member]

Weighted average amortization periods of intangible assets

5 years

Online game licenses [Member]

Weighted average amortization periods of intangible assets

3 years

Domain name [Member]

Weighted average amortization periods of intangible assets

^[1]

5 years

[1]	Copyrights related to content and domain name are related to the discontinued operation.

Inventories (Details) - USD ($)
$ in Thousands

Dec. 31, 2015

Dec. 31, 2014

$ 480

ZQB [Member]

Online Shopping Mall Inventories [Member]

^[1]

229

Others [Member]

$ 159

[1]	online shopping mall inventoriesincludeXiaomi TV box, gaming discs etc.

Long-term investments - Schedule of Long-Term Investments (Detail)
$ in Thousands, ¥ in Millions

12 Months Ended

Dec. 31, 2015

USD ($)

Dec. 31, 2015

CNY (¥)

Dec. 31, 2014

USD ($)

Dec. 31, 2013

USD ($)

Balance at beginning of the year

$ 2,965

$ 2,785

Additions

Share of loss from equity investees

$ (12)

$ (259)

$ 25

Dilution gains arising from deemed disposal of investments

702

^[1],[2]

$ 449

^[1],[2]

Transfer to cost method investments

(1,349)

Exchange differences

(144)

$ (10)

Balance at end of the year

2,162

2,965

$ 2,785

Balance at beginning of the year

2,533

164

Additions

^[3]

6,506

$ 2,359

Transfer from equity method investments

1,349

Exchange difference

(429)

$ 10

Less: impairment loss on long-term investments

(802)

¥ (5)

Balance at end of the year

9,157

$ 2,533

$ 164

Total long-term investments

$ 11,319

$ 5,498

[1]	In May of 2014, the Group obtained the right to appoint a director to Chengdu Diting and thus had one out of five seats on the board of directors of this investee. Given the existence of significant influence, the Group started to apply equity method in May 2014 although the Group's ownership interest in Chengdu Diting decreased from 19.9% to 16.58% because Chengdu Diting issued new shares to a third party for a total consideration of RMB 10 million (USD 1,627 thousand). In April of 2015, the new investor of Chengdu Diting injected capital of RMB 39.07 million (USD 6.39 million). As a result of the transaction, the Group 's ownership interest in Chengdu Diting diluted from 16.58% to 13.27%. So the recognition of Chengdu Diting's ownership for the Group transferred from equity method to cost method. The Group recorded a dilution gain of RMB 4.38 million (USD 702 thousand) arising from the sale of shares by the investee to third parties at a price in excess of the per share carrying value of the shares owned by the Group in 2015.
[2]	In September of 2015, Tianjin Kunzhiyi suffered from financial difficulties and lost most of its core R&D staff. As a result, new games couldn't be promoted as committed in investment agreement with the Group. The Group recognized impairment of RMB 5 million (USD 802 thousand) for ownership interest in Tianjin Kunzhiyi as considered necessary.
[3]	In 2015, the Group made equity investments in five more unrelated privately-held companies. The shares held by the Group are not in-substance common stock and therefore the Group accounted for these investments according to ASC 320 as equity activities using the cost method. In August 2015, the Group increased investment of USD 39 thousand to purchase 25 thousand shares of Shenzhen Kushiduo. As a result, the Group's ownership interest in Shenzhen Kushiduo increased from 10% to 12.5%.

Long-term investments - Schedule of Equity Investments, Percentage of Ownership of Common Share (Detail)

Dec. 31, 2015

Aug. 31, 2015

Dec. 31, 2014

Dec. 31, 2013

Zhuhai Qianyou [Member]

Equity method investments, Percentage of ownership of common share

19.00%

Guangzhou Yuechuan [Member]

Equity method investments, Percentage of ownership of common share

^[1]

19.13%

Chengdu Diting [Member]

Equity method investments, Percentage of ownership of common share

^[1]

16.58%

19.90%

Cost method investments, Percentage of ownership of common share

^[1]

13.27%

Shenzhen Kushiduo [Member]

Cost method investments, Percentage of ownership of common share

12.50%

^[2]

10.00%

^[2]

Shanghai Guozhi [Member]

Cost method investments, Percentage of ownership of common share

21.00%

Guangzhou Wucai [Member]

Cost method investments, Percentage of ownership of common share

10.00%

Guangzhou Hongsi [Member]

Cost method investments, Percentage of ownership of common share

19.90%

Tianjin Kunzhiyi [Member]

Cost method investments, Percentage of ownership of common share

^[3]

19.99%

Suzhou Heidisi [Member]

Cost method investments, Percentage of ownership of common share

^[2]

19.90%

Xiamen Diensi [Member]

Cost method investments, Percentage of ownership of common share

^[2]

15.00%

Nanjing Qianyi [Member]

Cost method investments, Percentage of ownership of common share

^[2]

20.00%

11.2 Capital [Member]

Cost method investments, Percentage of ownership of common share

^[2]

2.24%

Cloudtropy [Member]

Cost method investments, Percentage of ownership of common share

^[2]

1.13%

[1]	In May of 2014, the Group obtained the right to appoint a director to Chengdu Diting and thus had one out of five seats on the board of directors of this investee. Given the existence of significant influence, the Group started to apply equity method in May 2014 although the Group's ownership interest in Chengdu Diting decreased from 19.9% to 16.58% because Chengdu Diting issued new shares to a third party for a total consideration of RMB 10 million (USD 1,627 thousand). In April of 2015, the new investor of Chengdu Diting injected capital of RMB 39.07 million (USD 6.39 million). As a result of the transaction, the Group 's ownership interest in Chengdu Diting diluted from 16.58% to 13.27%. So the recognition of Chengdu Diting's ownership for the Group transferred from equity method to cost method. The Group recorded a dilution gain of RMB 4.38 million (USD 702 thousand) arising from the sale of shares by the investee to third parties at a price in excess of the per share carrying value of the shares owned by the Group in 2015.
[2]	In 2015, the Group made equity investments in five more unrelated privately-held companies. The shares held by the Group are not in-substance common stock and therefore the Group accounted for these investments according to ASC 320 as equity activities using the cost method. In August 2015, the Group increased investment of USD 39 thousand to purchase 25 thousand shares of Shenzhen Kushiduo. As a result, the Group's ownership interest in Shenzhen Kushiduo increased from 10% to 12.5%.
[3]	In September of 2015, Tianjin Kunzhiyi suffered from financial difficulties and lost most of its core R&D staff. As a result, new games couldn't be promoted as committed in investment agreement with the Group. The Group recognized impairment of RMB 5 million (USD 802 thousand) for ownership interest in Tianjin Kunzhiyi as considered necessary.

Long-term investments - Schedule of Equity Investments, Percentage of Ownership of Common Share (Parenthetical) (Detail)
¥ in Thousands, shares in Thousands, $ in Thousands

1 Months Ended

12 Months Ended

Aug. 31, 2015

USD ($)

Apr. 30, 2015

USD ($)

Apr. 30, 2015

CNY (¥)

May. 31, 2014

USD ($)

item

May. 31, 2014

CNY (¥)

item

Dec. 31, 2015

USD ($)

Companies

Dec. 31, 2015

CNY (¥)

Companies

Dec. 31, 2014

USD ($)

Dec. 31, 2013

USD ($)

Schedule of Equity Method Investments [Line Items]

Number of equity investments | Companies

Diluted gain arising from sale of shares | $

$ 702

^[1],[2]

$ 449

^[1],[2]

Impairment loss on long-term investments

$ 802

¥ 5,000

Guangzhou Yuechuan [Member]

Schedule of Equity Method Investments [Line Items]

Equity method investments, Percentage of ownership of common share

^[1]

19.13%

Chengdu Diting [Member]

Schedule of Equity Method Investments [Line Items]

Consideration received by equity method investee

$ 1,627

¥ 10,000

Equity method investments, Percentage of ownership of common share

^[1]

16.58%

19.90%

Diluted gain arising from sale of shares

$ 702

¥ 4,380

Investments in cost method investment

$ 6,390

¥ 39,070

Cost method investments, ownership percentage

^[1]

13.27%

Number of board of directors seats of investee to be appointed by Group | item

Number of board of directors seats of investee | item

Shenzhen Kushiduo [Member]

Schedule of Equity Method Investments [Line Items]

Investments in cost method investment | $

$ 39

Number of shares acquired of cost method investee | shares

Cost method investments, ownership percentage

10.00%

12.50%

^[3]

12.50%

^[3]

10.00%

^[3]

[1]	In May of 2014, the Group obtained the right to appoint a director to Chengdu Diting and thus had one out of five seats on the board of directors of this investee. Given the existence of significant influence, the Group started to apply equity method in May 2014 although the Group's ownership interest in Chengdu Diting decreased from 19.9% to 16.58% because Chengdu Diting issued new shares to a third party for a total consideration of RMB 10 million (USD 1,627 thousand). In April of 2015, the new investor of Chengdu Diting injected capital of RMB 39.07 million (USD 6.39 million). As a result of the transaction, the Group 's ownership interest in Chengdu Diting diluted from 16.58% to 13.27%. So the recognition of Chengdu Diting's ownership for the Group transferred from equity method to cost method. The Group recorded a dilution gain of RMB 4.38 million (USD 702 thousand) arising from the sale of shares by the investee to third parties at a price in excess of the per share carrying value of the shares owned by the Group in 2015.
[2]	In September of 2015, Tianjin Kunzhiyi suffered from financial difficulties and lost most of its core R&D staff. As a result, new games couldn't be promoted as committed in investment agreement with the Group. The Group recognized impairment of RMB 5 million (USD 802 thousand) for ownership interest in Tianjin Kunzhiyi as considered necessary.
[3]	In 2015, the Group made equity investments in five more unrelated privately-held companies. The shares held by the Group are not in-substance common stock and therefore the Group accounted for these investments according to ASC 320 as equity activities using the cost method. In August 2015, the Group increased investment of USD 39 thousand to purchase 25 thousand shares of Shenzhen Kushiduo. As a result, the Group's ownership interest in Shenzhen Kushiduo increased from 10% to 12.5%.

Deferred revenue and income - Schedule of Deferred Revenue and Income (Detail) - USD ($)
$ in Thousands

Dec. 31, 2015

Dec. 31, 2014

$ 30,496

$ 34,570

^[1]

(5,383)

(6,825)

Membership subscription revenues [Member]

25,113

27,745

24,502

27,543

Online game revenues [Member]

(719)

(1,120)

Pay per view subscription revenues [Member]

$ 1,120

$ 1,111

Government grants [Member]

$ 4,032

$ 4,863

Reimbursement from the depository [Member]

(4,032)

(4,863)

^[2]

842

1,053

$ (632)

$ (842)

[1]	As of December 31, 2015, the non-current portion included Membership subscription revenue of USD 719 thousand (2014: USD 1,120 thousand), Government grants of USD 4,032 thousand (2014: USD 4,863 thousand), and Reimbersement from the depositary of USD 632 thousand (2014: 842 thousand).
[2]	In December of 2014, the Company received from its depositary a reimbursement of USD 1.2 million, net of withholding tax of USD0.3 million. This reimbursement was recognized as deferred income and amortized over the depositary service period of 5 years.

Deferred revenue and income - Schedule of Deferred Revenue and Income (Parenthetical) (Detail) - USD ($)
$ in Thousands

1 Months Ended

12 Months Ended

Dec. 31, 2014

Dec. 31, 2015

Dec. 31, 2014

Dec. 31, 2013

Reimbursement received from depository

$ 1,200

$ 1,158

Deferred income withholding tax

$ 300

Deferred income amortized depositary service period

5 years

Membership subscription revenues [Member]

^[1]

$ 6,825

$ 5,383

6,825

Government grants [Member]

1,120

719

1,120

Reimbursement from the depository [Member]

4,863

4,032

4,863

$ 842

$ 632

$ 842

[1]	As of December 31, 2015, the non-current portion included Membership subscription revenue of USD 719 thousand (2014: USD 1,120 thousand), Government grants of USD 4,032 thousand (2014: USD 4,863 thousand), and Reimbersement from the depositary of USD 632 thousand (2014: 842 thousand).

Accrued liabilities and other payables - Schedule of Accrued Liabilities and Other Payables (Detail) - USD ($) $ in Thousands	Dec. 31, 2015	Dec. 31, 2014
Accrued liabilities and other payables [Abstract]
Payroll and welfare	$ 10,570	$ 11,800
Agency commissions and rebates-online advertising	2,443	8,017
Payables for advertisement on exclusive online games	$ 1,643	2,515
Receipts in advance from customers		1,133
Tax levies	$ 1,605	556
Payables for purchase of equipment	4,999	240
Legal and litigation related expenses	2,601	451
Professional fees	908	2,460
Staff reimbursements	611	440
Rental expense	4	382
Payables for proceeds from selling exercised stock options	$ 177	872
Advance for exercise of stock options		$ 356
Payables for gaming distribution	$ 158
Payables to Nesound	622
Others	1,038	$ 1,111
Total	$ 27,379	$ 30,333

Cost of revenues - Schedule of Cost of Revenues (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Deferred Revenue Arrangement [Line Items]
Cost of revenues	$ 60,034	$ 55,755	$ 50,258
Bandwidth costs [Member]
Deferred Revenue Arrangement [Line Items]
Cost of revenues	37,218	$ 33,545	28,174
Content costs, including amortization [Member]
Deferred Revenue Arrangement [Line Items]
Cost of revenues	338		1,061
Payment handling fees [Member]
Deferred Revenue Arrangement [Line Items]
Cost of revenues	9,087	$ 11,305	12,097
Depreciation of servers and other equipment [Member]
Deferred Revenue Arrangement [Line Items]
Cost of revenues	4,873	5,102	3,801
Games revenue sharing costs and others [Member]
Deferred Revenue Arrangement [Line Items]
Cost of revenues	$ 8,518	$ 5,803	$ 5,125

Redeemable Convertible Preferred Shares - Series D Convertible Redeemable Preferred Shares - Additional Information (Detail) - USD ($)
$ / shares in Units, $ in Thousands

2 Months Ended

12 Months Ended

Jun. 24, 2014

Mar. 05, 2014

Feb. 06, 2014

Jan. 31, 2012

Apr. 30, 2014

Dec. 31, 2015

Dec. 31, 2014

Dec. 31, 2013

Dec. 31, 2012

Mar. 31, 2014

Mar. 01, 2014

Total consideration from issuance of Series D preferred shares and warrants

$ 37,500

Loss on exchange of warrants

$ (405)

Retained earnings

$ (12,593)

574

Date of completion of IPO

Jun. 24, 2014

Fair value of gain recognized in other income

$ (8,054)

$ (1,531)

$ 2,922

Minimum [Member]

55.36%

Maximum [Member]

Series D Preferred Stock [Member]

59.91%

Warrants to purchase preferred shares

1,952,663

266,272

Warrants to purchase preferred per shares

$ 3.38

Conversion, description

8,391,850

Loss on exchange of warrants

$ 2,414

405

Initial conversion price

$ 3.5

Adjusted conversion price

$ 2.86

Preferred Stock, Shares Outstanding

6,771,454

Contingent beneficial conversion feature

$ 0

Remaining shares held by investor

3,808,943

Beneficial conversion feature for preferred shares anti-diluted

$ 4,008

Number of shares redeemed under rights

6,771,454

Retained earnings

$ 279

Exercise price of warrants

$ 0

Series D Preferred Stock [Member] | Initial Public Offering [Member]

Adjusted conversion price

10,581,726

Initial conversion price

2.86

2.27

Preferred Stock, Shares Outstanding

6,771,454

Series D Preferred Stock [Member] | Minimum [Member]

Series D Preferred Stock [Member] | Maximum [Member]

38.39%

Series D Warrants [Member]

43.40%

Warrants, exercisable period description

Initial fair value of warrants

$ 3,007

Fair value of (loss)/gain of warrants

2,186

$ 1,531

$ 710

Series E Preferred Shares [Member]

^[3]

0.00%

^[1],[2]

30.33%

Warrants to purchase preferred shares

3,406,824

Warrants to purchase preferred per shares

$ 2.82

Initial fair value of warrants

129,166,667

$ 2,819

Initial conversion price

2.82

Adjusted conversion price

$ 2.4

Remaining shares held by investor

110,014,440

Series E Warrants [Member]

$ 6,381

Initial fair value of warrants

$ 6,477

Series E Warrants [Member] | Minimum [Member]

Series E Warrants [Member] | Maximum [Member]

^[3]

38.39%

Convertible Redeemable Preferred Shares [Member] | Series D Preferred Stock [Member]

^[3]

38.81%

Preferred stock, price per share

Preferred stock, issued

10,580,397

$ 3.544

Warrants to purchase preferred shares

2,218,935

Warrants to purchase preferred per shares

$ 3.38

Number of shares issued from existing shareholders to third-party investors

5,036,367

Preferred shares, redemption rights

Preferred shares redemption price per share, minimum

$ 3.544

Compound interest rate per annum on unpaid dividends

8.00%

Preferred shares, carrying value

$ 32,481

Capitalized expense

$ 2,012

Convertible Redeemable Preferred Shares [Member] | Series E Preferred Shares [Member]

Conversion, description

Convertible Redeemable Preferred Shares [Member] | Series E Warrants [Member]

Series E Warrants [Member]

^[3]

38.81%

[1]	Given that the maturity date of Series D warrant was February 6, 2014, the volatility rate and risk-free interest rate did not affect the valuation of the warrant on February 6, 2014.
[2]	Risk-free interest rate – based on the US Treasury Bond & Notes BFV curve from Bloomberg as at the valuation date.
[3]	Volatility – based on the average historical volatility of the comparable companies from Bloomberg as at the valuation date.

Redeemable Convertible Preferred Shares - Assumptions to Estimated Fair Value of Warrants (Detail) - $ / shares

12 Months Ended

Apr. 24, 2014

Mar. 05, 2014

Feb. 06, 2014

Dec. 31, 2015

Dec. 31, 2013

Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]

Series D Warrants [Member]

^[1]

0.00%

Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]

^[2]

$ 4.47

$ 4.36

^[4]

0.00%

^[3],[5]

0.05%

^[5]

0.00%

^[3],[4]

30.33%

Convertible Redeemable Preferred Shares [Member] | Series E Warrants [Member]

0.00%

^[1]

0.00%

Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]

^[4]

0.12%

^[5]

38.81%

Subscription Rights [Member]

0.00%

Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]

^[4]

0.02%

0.04%

^[5]

42.74%

38.12%

Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]

0.00%

^[1]

0.00%

Minimum [Member]

Minimum [Member] | Series E Warrants [Member]

55.36%

Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]

^[2]

$ 3.31

^[4]

0.04%

^[5]

38.39%

Minimum [Member] | Convertible Redeemable Preferred Shares [Member] | Series E Warrants [Member]

0.00%

Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]

^[6]

$ 4.50

Minimum [Member] | Subscription Rights [Member]

^[1]

0.00%

Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]

^[7]

$ 3.39

$ 3.31

Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]

0.00%

Maximum [Member]

Maximum [Member] | Series E Warrants [Member]

59.91%

Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]

^[2]

$ 4.65

^[4]

0.12%

^[5]

38.81%

Maximum [Member] | Convertible Redeemable Preferred Shares [Member] | Series E Warrants [Member]

^[1]

0.00%

Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]

^[6]

$ 4.65

Maximum [Member] | Subscription Rights [Member]

^[1]

0.00%

Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]

^[7]

$ 4.64

$ 4.65

Equity, Class of Treasury Stock [Line Items]

0.00%

[1]	The Company has no history or expectation of paying dividends on its common shares.
[2]	Spot price – based on the fair value of 100 percent equity interest of the Company which was allocated to preferred shares and common shares of the Company as at the valuation date under different scenarios. For the valuation on March 5, 2014 and March 31, 2014, the probability of the occurrence of an IPO is assumed to be 80%, the probability of the occurrence of a liquidation event is assumed to be 10% and the probability of the occurrence of a redemption event is assumed to be 10%
[3]	Given that the maturity date of Series D warrant was February 6, 2014, the volatility rate and risk-free interest rate did not affect the valuation of the warrant on February 6, 2014.
[4]	Risk-free interest rate – based on the US Treasury Bond & Notes BFV curve from Bloomberg as at the valuation date.
[5]	Volatility – based on the average historical volatility of the comparable companies from Bloomberg as at the valuation date.
[6]	Spot price – based on the fair value of 100 percent equity interest of the Company which is allocated to preferred shares and common shares of the Company as at the valuation date under different scenarios. For the valuation on March 5, 2014 and March 31, 2014, the probability of the occurrence of an IPO is assumed to be 80%, the probability of the occurrence of a liquidation event is assumed to be 10% and the probability of the occurrence of a redemption event is assumed to be 10% .
[7]	Spot price – based on the fair value of 100 percent equity interest of the Company which is allocated to preferred shares and common shares of the Company as at the valuation date under different scenarios. The probability of the occurrence of an IPO is assumed to be 80%, the probability of the occurrence of a liquidation event is assumed to be 10% and the probability of the occurrence of a redemption event is assumed to be 10%.

Redeemable Convertible Preferred Shares - Summary of Redeemable Convertible Preferred Shares (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Temporary Equity [Line Items]
Repurchase of preferred shares	$ (1,287)	$ (59,082)
Initial Public Offering [Member]
Temporary Equity [Line Items]
Converted to common shares upon IPO		470,759
Series E Tranche 1 Preferred Shares [Member]
Temporary Equity [Line Items]
BCF upon Series E	$ 52,377
Series D Preferred Stock [Member]
Temporary Equity [Line Items]
Accretion of Series D to convertible redeemable preferred shares redemption value		1,870	$ 4,300
Accretion of Series E to convertible redeemable preferred shares redemption value		$ (1,870)	(4,300)
Convertible Redeemable Preferred Shares [Member] \| Series E Tranche 1 Preferred Shares [Member]
Temporary Equity [Line Items]
Beginning balance
Addition	$ 275,314
Exercise of Series E subsequent sale rights	28,568
BCF upon Series E	(53,486)
Amortisation of BCF of Series E	4,139
Accretion of Series E to convertible redeemable preferred shares redemption value	12,754
Acceleration of amortization of BCF of Series E upon IPO	49,346
Converted to common shares upon IPO	$ (344,031)
Ending balance
Convertible Redeemable Preferred Shares [Member] \| Series E Tranche 1 Preferred Shares [Member] \| Initial Public Offering [Member]
Temporary Equity [Line Items]
Deemed dividend to preferred shareholders upon IPO	$ 27,396
Convertible Redeemable Preferred Shares [Member] \| Series D Preferred Stock [Member]
Temporary Equity [Line Items]
Beginning balance		$ 40,290	$ 35,990
Deemed dividend to preferred shareholders upon IPO		279
Accretion of Series D to convertible redeemable preferred shares redemption value		1,870	$ 4,300
Repurchase of preferred shares		$ (15,003)
Ending balance			$ 40,290
Convertible Redeemable Preferred Shares [Member] \| Series D Preferred Stock [Member] \| Initial Public Offering [Member]
Temporary Equity [Line Items]
Deemed dividend to preferred shareholders upon IPO		$ 4,008
Converted to common shares upon IPO		$ (31,444)

Redeemable Convertible Preferred Shares - Series E Convertible Redeemable Preferred Shares - Additional Information (Detail)				3 Months Ended	12 Months Ended
	Jun. 24, 2014 USD ($) $ / shares shares	Apr. 24, 2014 USD ($) item shares	Mar. 05, 2014 USD ($) $ / shares shares	Jun. 04, 2014 $ / shares shares	Dec. 31, 2015 USD ($) $ / shares shares	Dec. 31, 2014 USD ($)	Dec. 31, 2013 USD ($)	Aug. 31, 2013 USD ($)
Conversion of Stock [Line Items]
Incremental benefits					$ 0
Fair value of warrant liability						$ (8,054,000)	$ (1,531,000)
First Two Investors [Member]
Conversion of Stock [Line Items]
Total consideration		$ 100,000,000
Third Investor [Member]
Conversion of Stock [Line Items]
Total consideration		10,000,000
Unvested restricted stock [Member]
Conversion of Stock [Line Items]
Number of shares imposed transfer restrictions \| shares					3,394,564
Unvested options [Member]
Conversion of Stock [Line Items]
Number of shares imposed transfer restrictions \| shares					180,000
Vested options [Member]
Conversion of Stock [Line Items]
Number of shares imposed transfer restrictions \| shares					180,000
Common shares [Member]
Conversion of Stock [Line Items]
Shares subscribed \| shares					39,934,162
Subscription Rights [Member]
Conversion of Stock [Line Items]
Initial fair value of subscription rights		28,208,000
Fair value of subscription rights		$ 29,223,000
Series E Preferred Shares [Member]
Conversion of Stock [Line Items]
Total consideration from issuance of Series E preferred shares and warrants			$ 200,000,000
Preferred stock, shares issued \| shares			70,975,491
Preferred stock issued price \| $ / shares			$ 2.82
Warrants to purchase preferred shares \| shares			3,406,824
Warrants exercise price \| $ / shares			$ 2.82
Percentage of issue price					100.00%
Converted into common share \| shares					129,166,667
Interest rate for delayed period					15.00%
Initial conversion price \| $ / shares	$ 2.82
Adjusted conversion price \| $ / shares	$ 2.4
Initial fair value of warrants					$ 2,819,000
Fair value of warrant liability	$ 6,381,000
Beneficial conversion feature					27,396,000
Shares held by investors \| shares	110,014,440
Unamortized beneficial conversion feature for preferred shares anti-diluted					$ 49,346,000
Series E Preferred Shares [Member] \| Convertible Redeemable Preferred Shares [Member]
Conversion of Stock [Line Items]
Converted into common share \| shares					1
Series E Preferred Shares [Member] \| Subscription Rights [Member]
Conversion of Stock [Line Items]
Warrants exercise price \| $ / shares					$ 2.82
Right to purchase additional number of preferred shares by investor \| shares					35,487,746
Series E Tranche 1 Investor [Member]
Conversion of Stock [Line Items]
Warrants to purchase preferred shares \| shares			17,743,873
Warrants exercise price \| $ / shares			$ 2.82
Series E Tranche 1 Investor [Member] \| Subscription Rights [Member]
Conversion of Stock [Line Items]
Shares subscribed \| shares				35,487,746
Preferred stock, price per share repurchased \| $ / shares				$ 2.28
Series E Tranche 1 Preferred Shares [Member]
Conversion of Stock [Line Items]
Amount of beneficial conversion feature					$ 52,377,000
Common stock fair value per share \| $ / shares					$ 3.05
Initial conversion price \| $ / shares					2.82
Adjusted conversion price \| $ / shares					$ 2.31
Series E Tranche 1 Preferred Shares [Member] \| Convertible Redeemable Preferred Shares [Member]
Conversion of Stock [Line Items]
Amount of beneficial conversion feature					$ (53,486,000)
Series E Tranche 1 Investor Options [Member]
Conversion of Stock [Line Items]
Valuation based on subscription price			$ 30,000,000,000		$ 10,000,000,000			$ 10,000,000,000
Percentage of approval for transfer of preferred shares					75.00%
Valuation of transfer restriction					$ 43,300,000
Percentage increase in valuation					200.00%
Series E Warrants [Member]
Conversion of Stock [Line Items]
Initial fair value of warrants					$ 6,477,000
Preferred stock, price per share repurchased \| $ / shares				$ 2.82
Fair value of warrant liability
Series E Tranche 2 Investor [Member]
Conversion of Stock [Line Items]
Number of investors \| item		2
Number of investors exercised the Subscription Rights \| item		3
Series E Tranche 2 Preferred Shares [Member]
Conversion of Stock [Line Items]
Shares subscribed \| shares		39,037,382
Total consideration		$ 110,000
Fair value of warrant liability		29,223,000
Series E Tranche 2 Preferred Shares [Member] \| First Two Investors [Member]
Conversion of Stock [Line Items]
Total consideration		100,000,000
Beneficial conversion feature		1,109,000
Series E Tranche 2 Preferred Shares [Member] \| Third Investor [Member]
Conversion of Stock [Line Items]
Total consideration		10,000,000
Beneficial conversion feature		$ 0

Convertible Preferred Shares - Additional Information (Detail) - USD ($) $ / shares in Units, $ in Thousands	1 Months Ended	12 Months Ended
	Nov. 30, 2014	Dec. 31, 2015	Dec. 31, 2012	Dec. 31, 2014	Jun. 24, 2014	Apr. 30, 2014	Mar. 31, 2014	Jan. 31, 2014	Jan. 31, 2012	Apr. 30, 2011
Conversion of Stock [Line Items]
Threshold removed, amount										$ 50,000
Additional paid-in-capital		$ 458,270		$ 446,202
Common shares issued	10,000,000
Conversion after anti-dilution		$ 5.13
Minimum [Member]
Conversion of Stock [Line Items]
Volatility rate		55.36%
Maximum [Member]
Conversion of Stock [Line Items]
Volatility rate		59.91%
Series A [Member]
Conversion of Stock [Line Items]
Beneficial conversion feature for preferred shares		$ 54
Series C [Member]
Conversion of Stock [Line Items]
Beneficial conversion feature for preferred shares anti-diluted			$ 286
Initial conversion price									$ 5.24
Adjusted conversion price									4.14
Preferred shares at purchase price per common share									$ 4.607
Purchase option exercise period		12 months
Conversion , description		Upon issuance of Series D preferred shares in January 2012 as discussed in note 13, the Company adjusted the Series C conversion price from USD5.24 to USD4.14 per share; and obtained an exclusive option to purchase at any time within 12 months after the date of the conversion for all, but not less than all, of Series C preferred shares at the purchase price of USD4.607 per common share.
Converted into common share		7,248,293
Preferred shares outstanding		5,728,264
Additional paid-in-capital		$ 2,905
Common shares issued		96,024,567
Series C [Member] \| Anti-dilution clause 1 [Member]
Conversion of Stock [Line Items]
Beneficial conversion feature for preferred shares anti-diluted		$ 58
Conversion , description		Upon issuance of Series E preferred shares in March and April 2014, the Company adjusted the Series C conversion price from USD4.14 to USD3.64 and from USD3.64 to USD3.63 per share relating to 114,565 Series C preferred shares held by one investor (‘‘Series C Investor 2''), respectively. The Company concluded that the downward conversion price adjustment is in accordance with the anti-dilution clause in the original Series C financing agreement.
Converted into common share		165,236
Preferred shares outstanding		114,565
Series C [Member] \| Anti-dilution clause 2 [Member]
Conversion of Stock [Line Items]
Beneficial conversion feature for preferred shares anti-diluted		$ 1,403
Conversion , description		Upon the completion of the IPO on 24 June 2014, the Company adjusted the Series C conversion price from USD4.14 to USD3.89 and from USD3.63 to USD3.45 per share relating to 5,613,699 Series C preferred shares held by Series C Investor 1 and 114,565 Series C preferred shares held by Series C Investor 2, respectively. The Company concluded that the downward conversion price adjustment is in accordance with the anti-dilution clause in the latest shareholders agreement.
Converted into common share		7,724,419
Series C [Member] \| Series C Investor 1 [Member]
Conversion of Stock [Line Items]
Initial conversion price					$ 4.14			$ 4.14
Adjusted conversion price					$ 3.89
Conversion after anti-dilution								$ 2.81
Shares held by investors					5,613,699			5,613,699
Series C [Member] \| Series C Investor 2 [Member]
Conversion of Stock [Line Items]
Initial conversion price					$ 3.63	$ 3.64	$ 4.14
Adjusted conversion price					$ 3.45	$ 3.63	$ 3.64
Shares held by investors					114,565	114,565	114,565

Common shares - Additional Information (Detail) - $ / shares	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Apr. 30, 2014	Nov. 30, 2013
Common shares [Abstract]
Common stock, shares authorized	1,000,000,000	1,000,000,000
Common stock, par value	$ 0.00025	$ 0.00025	$ 0.00025	$ 0.00025
Common stock, shares outstanding	339,319,115	327,611,487
Common stock voting rights, description	Each common share is entitled to one vote. The holders of common shares are also entitled to receive dividends whenever funds are legally available and when declared by the Board of Directors, which is subject to the approval by the holders of the common shares representing a majority of the aggregate voting power of all outstanding shares

Repurchase of shares - Additional Information (Detail) - USD ($)

1 Months Ended

12 Months Ended

Dec. 30, 2015

Sep. 30, 2015

Apr. 07, 2015

Mar. 31, 2015

^[1]

Dec. 31, 2015

Jan. 31, 2016

Jan. 27, 2016

Dec. 31, 2014

Share repurchase program, 2014 [Member]

$ 20,000,000

Equity, Class of Treasury Stock [Line Items]

Total Number of ADS Purchased

16,876

2,940

1,000

192,803

213,619

Average Price Paid Per Share

$ 6.94

$ 7.13

$ 6.65

$ 6.44

Total Number of ADSs Purchased as Part of the Publicly Announced Plan

16,876

2,940

1,000

192,803

213,619

Approximate Dollar Value of ADSs that May Yet Be Purchased Under the Plan

^[2]

$ 2,793,899

$ 2,810,775

$ 2,813,715

$ 2,814,715

$ 2,793,899

Share Repurchase Program, 2016 [Member] | Subsequent Event [Member]

$ 20,000,000

Equity, Class of Treasury Stock [Line Items]

Fair value changes of warrants liabilities

$ 20,000,000

[1]

[2]

Due to the expiration of the Repurchase Program, such amount is no longer available for repurchase after December 31, 2015.

Non-controlling interest - Additional Information (Detail) - Xunlei Games Development (Shenzhen) Co., Ltd. [Member] ¥ in Thousands, $ in Thousands	Feb. 28, 2010 USD ($)	Feb. 28, 2010 CNY (¥)
Noncontrolling Interest [Line Items]
Percentage of equity interest owned by parent	70.00%	70.00%
Minority interest owned by shareholder, percent	30.00%	30.00%
Minority interest owned by shareholder, amount	$ 439	¥ 3,000

Share-based compensation - Additional Information (Detail) - USD ($) $ in Thousands				1 Months Ended			12 Months Ended
	Dec. 01, 2014	Sep. 05, 2014	Jun. 11, 2014	Nov. 30, 2014	Apr. 30, 2014	Nov. 30, 2013	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2011
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Incremental share-based compensation to be recognized	$ 2,214
Share options cancelled	3,776,711						80,000	3,776,711
Common shares issued				10,000,000
Total fair value, share options vested							$ 6,297	$ 7,923
Unrecognized share-based compensation costs							$ 1,147	$ 1,462
Weighted-average vesting period expected to be recognized							4 years 11 days	2 years 10 months 2 days
Restricted shares expected to vest							1,008,645	9,642,307	20,701,286
Leading Advice Holdings Limited [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Common shares issued					14,195,412	9,073,732
Restricted shares [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Restricted shares granted	1,505,787
Kingsoft Cloud Storage Business [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Business acquisition date							Sep. 05, 2014
Replacement award attributable to pre-combination service		$ 303
Replacement award attributable to post-combination service		$ 44
2010 share incentive plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock option vesting period, description							Stock options granted to employees and officers vest over a four-year schedule as stated below: (1) One-fourth of the options shall be vested upon the first anniversary of the grant date; (2) The remaining three quarters of the options shall be vested on monthly basis over the next thirty-six months. ( 1/48 of options shall be vested per month subsequently)
Number of shares available for grant							5,847,465
Extended maturity date of share options							Jun. 11, 2015
Lock-up period for shares from IPO closing date							6 months
Incremental share-based compensation to be recognized			$ 768
2010 share incentive plan [Member] \| Employee and officers [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock option vesting period							4 years
2010 share incentive plan [Member] \| Directors [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock option vesting period							32 months
2010 share incentive plan [Member] \| Employees [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Estimated forfeiture rate							20.00%
2010 share incentive plan [Member] \| Directors and advisers [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Estimated forfeiture rate
2010 share incentive plan [Member] \| Restricted shares [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Restricted shares granted							80,000	1,505,787
2010 share incentive plan [Member] \| Minimum [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock option term							7 years
Stock option vesting period	2 years
2010 share incentive plan [Member] \| Maximum [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock option term							10 years
Stock option vesting period	4 years 6 months
Number of shares available for grant										26,822,828
2013 Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Restricted stock granted							7,987,435
Unrecognized compensation expense relating to the restricted shares							$ 13,866
2013 Plan [Member] \| Non-employees [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Restricted shares issued to non-employees							0
2013 Plan [Member] \| Restricted shares [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of shares available for grant							9,073,732
Restricted stock granted								4,233,558
2013 Plan [Member] \| Restricted shares [Member] \| Tranche One [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock option vesting period							4 years
Stock option vesting period, description							one-fourth of the restricted shares shall be vested upon the first, second, third, and fourth anniversary of the grant date, respectively.
Restricted shares expected to vest							6,209,809
2013 Plan [Member] \| Restricted shares [Member] \| Tranche Two [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock option vesting period							5 years
Stock option vesting period, description							one-fifth of the restricted shares shall be vested upon the first, second, third, fourth and fifth anniversary of the grant date, respectively.
Restricted shares expected to vest							1,037,894
2013 Plan [Member] \| Restricted shares [Member] \| Tranche Five [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock option vesting period							3 years
Stock option vesting period, description							(i) One-fourth of the restricted shares shall vest on the earlier of (i) the first anniversary of the grant date, or (ii) upon a QIPO; and (ii) the remainder three quarters of the restricted shares shall vest in equal instalments on a monthly basis over a thirty-six month vesting period afterwards.
Restricted shares expected to vest							649,732
2014 Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of shares available for grant					14,195,412
Unrecognized compensation expense relating to the restricted shares							$ 9,683
2014 Plan [Member] \| Non-employees [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Restricted shares issued to non-employees							0
2014 Plan [Member] \| Restricted shares [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Restricted stock granted							3,890,500	3,896,500
2014 Plan [Member] \| Restricted shares [Member] \| Certain Officers and Employees [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Restricted stock granted							6,620,500
2014 Plan [Member] \| Restricted shares [Member] \| Tranche One [Member] \| Certain Officers and Employees [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock option vesting period							5 years
Stock option vesting period, description							5,270,500 of these restricted shares will vest over a five-year schedule in which one-fifth of the restricted shares shall be vested upon the first, second, third, fourth and fifth anniversary of the grant date, respectively.
Restricted shares expected to vest							5,270,500
2014 Plan [Member] \| Restricted shares [Member] \| Tranche Two [Member] \| Certain Officers and Employees [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock option vesting period							4 years
Stock option vesting period, description							The remaining 1,350,000 restricted shares will vest over a four-year schedule in which one-fourth of the restricted shares shall be vested upon the first, second, third and fourth anniversary of the grant date, respectively.
Restricted shares expected to vest							1,350,000

Share-based compensation - Summary of Stock Option Activity (Detail) - USD ($) $ / shares in Units, $ in Thousands		12 Months Ended
	Dec. 01, 2014	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Share-based compensation [Abstract]
Number of share options, Outstanding, Beginning balance		9,940,285	20,972,776	20,222,662
Number of share options, Granted		561,705	1,566,381	1,076,761
Number of share options, Forfeited		(1,494,922)	(371,989)	(326,647)
Number of share options, Expired		(3,606,304)	(1,116,531)
Number of share options, Converted to restricted shares	(3,776,711)	(80,000)	(3,776,711)
Number of share options, Exercised		(3,189,944)	(7,333,641)
Number of share options, Outstanding, Ending balance		2,130,820	9,940,285	20,972,776	20,222,662
Number of share options, Vested and expected to vest, Ending balance		1,008,645	9,642,307	20,701,286
Number of share options, Exercisable, Ending balance		1,430,870	9,129,958	19,382,156
Weighted average exercise price, Beginning balance		$ 1.88	$ 1.37	$ 1.30
Weighted average exercise price, Granted		0.88	3.23	3.33
Weighted average exercise price, Forfeited		3.22	3.96	3.32
Weighted average exercise price, Expired		1.78	0.26
Weighted average exercise price, Converted to restricted shares		2.40	3.14
Weighted average exercise price, Exercised		0.25	0.18
Weighted average exercise price, Ending balance		2.13	1.88	1.37	$ 1.30
Weighted average exercise price, Vested and expected to vest at end of period		1.76	1.86	1.32
Weighted average exercise price, Exercisable at end of period		2.16	1.81	1.17
Weighted-average grant date fair value, Granted		0.76	1.01	1.27
Weighted-average grant date fair value, Vested and expected to vest, Ending balance		0.73	0.49	0.40
Weighted-average grant date fair value, Exercisable, Ending balance		$ 0.86	$ 0.41	$ 0.31
Weighted-average remaining contractual life, Ending balance		4 years 5 months 16 days	1 year 11 months 12 days	2 years 11 days	2 years 9 months 25 days
Weighted-average remaining contractual life, Vested and expected to vest, Ending balance		4 years 7 months 13 days	1 year 10 months 13 days	1 year 10 months 20 days
Weighted-average remaining contractual life, Exercisable, Ending balance		4 years 11 days	1 year 5 months 26 days	1 year 8 months 1 day
Aggregate intrinsic value, Outstanding, Beginning balance		$ 3,067	$ 39,420	$ 40,788
Aggregate intrinsic value, Outstanding, Ending balance		556	3,067	39,420	$ 40,788
Aggregate intrinsic value, Vested and expected to vest, Ending balance		464	3,057	41,014
Aggregate intrinsic value, Exercisable, Ending balance		$ 406	$ 3,042	$ 40,771

Share-based compensation - Summary of Restricted Shares Activities (Detail) - $ / shares		12 Months Ended
	Dec. 01, 2014	Dec. 31, 2015	Dec. 31, 2014
Restricted shares [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of restricted shares, Converted from share options	1,505,787
2010 share incentive plan [Member] \| Restricted shares [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of restricted shares, Unvested, beginning balance		1,505,787
Number of restricted shares, Converted from share options		80,000	1,505,787
Number of restricted shares, Vested		(390,560)
Number of restricted shares, Forfeited		(763,010)
Number of restricted shares, Unvested, Ending balance		432,217	1,505,787
Number of restricted shares, Vested and expected to vest, Ending balance		367,384
Weighted-Average Grant-Date Fair Value, Converted from share options		$ 1.71	$ 1.71
2013 Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of restricted shares, Granted		7,987,435
2013 Plan [Member] \| Restricted shares [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of restricted shares, Unvested, beginning balance		7,200,778	8,095,238
Number of restricted shares, Granted			4,233,558
Number of restricted shares, Vested		(2,627,815)	(1,563,222)
Number of restricted shares, Forfeited		(776,565)	(3,564,796)
Number of restricted shares, Unvested, Ending balance		3,796,398	7,200,778
Number of restricted shares, Vested and expected to vest, Ending balance		3,226,939
Weighted-Average Grant Date Fair Value, Granted			$ 2.89
2014 Plan [Member] \| Restricted shares [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of restricted shares, Unvested, beginning balance		3,896,500
Number of restricted shares, Granted		3,890,500	3,896,500
Number of restricted shares, Vested		(859,100)
Number of restricted shares, Forfeited		(1,166,500)
Number of restricted shares, Unvested, Ending balance		5,761,400	3,896,500
Number of restricted shares, Vested and expected to vest, Ending balance		4,897,100
Weighted-Average Grant Date Fair Value, Granted		$ 1.53	$ 1.77

Share-based compensation - Schedule of Fair Values of Stock Options Granted (Detail)	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Risk-free interest rate, Minimum	0.77%	0.77%	0.77%
Risk-free interest rate, Maximum	1.76%	1.76%	1.76%
Dividend yield
Volatility rate, Minimum	40.07%	40.07%	43.80%
Volatility rate, Maximum	43.30%	43.30%	51.30%
Expected term (in years)			4 years 6 months 29 days
Minimum [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Expected term (in years)	4 years 25 days	4 years 1 month 17 days
Maximum [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Expected term (in years)	5 years 6 months 25 days	4 years 6 months 29 days

Share-based compensation - Schedule of Recognized Compensation Costs (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items]
Total compensation costs	$ 9,728	$ 7,644	$ 2,096
Sales and marketing expenses [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items]
Total compensation costs	131	66	43
General and administrative expenses [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items]
Total compensation costs	6,701	6,407	1,080
Research and development expenses [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items]
Total compensation costs	$ 2,896	$ 1,171	$ 973

Basic and Diluted Net income / (loss) Per Share (Schedule of Basic and Diluted Net income / (loss) Per Share) (Detail) - USD ($) $ / shares in Units, $ in Thousands	2 Months Ended	12 Months Ended
	Apr. 30, 2014	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Numerator:
Net income/(loss) from continuing operations		$ (2,370)	$ 28,269	$ 22,951
Net loss from discontinued operations		(12,096)	(18,407)	(12,572)
Net income/(loss)		(14,466)	9,862	10,379
Less: Net (loss) attributable to the non-controlling interest		(1,299)	(950)	(283)
Net income/(loss) attributable to Xunlei Limited		$ (13,167)	10,812	$ 10,662
Deemed dividend to certain shareholders from repurchase of shares			(14,926)
Acceleration of amortization of beneficial conversion feature of Series E upon initial public offering			(49,346)
Deemed dividend to preferred shareholders upon IPO			$ (32,807)
Allocation of net income to participating preferred shareholders				$ (4,094)
Net income/(loss) attributable to Xunlei Limited's common shareholders		$ (13,167)	$ (105,366)	2,268
Numerator of basic net income/(loss) per share from continuing operations		(1,071)	(86,959)	14,840
Numerator of basic net loss per share from discontinued operations		$ (12,096)	$ (18,407)	(12,572)
Dilutive effect of warrant				(1,531)
Numerator for diluted income/(loss) per share from continuing operations		$ (1,071)	$ (86,959)	13,309
Numerator for diluted loss per share from discontinued operations		$ (12,096)	$ (18,407)	$ (12,572)
Denominator:
Denominator for basic net income/(loss) per share-weighted average shares outstanding		335,987,595	194,711,227	61,447,372
Dilutive effect of warrants				2,218,935
Dilutive effect of share options and restricted shares				12,399,591
Denominator for diluted net income/(loss) per share		335,987,595	194,711,227	76,065,898
Basic net income/(loss) per share from continuing operations		$ 0.00	$ (0.45)	$ 0.24
Basic net loss per share from discontinued operations		(0.04)	(0.09)	(0.20)
Diluted net income/(loss) per share from continuing operations		0.00	(0.45)	0.18
Diluted net loss per share from discontinued operations		$ (0.04)	$ (0.09)	$ (0.17)
Series D Preferred Stock [Member]
Numerator:
Accretion to convertible redeemable preferred shares redemption value			$ (1,870)	$ (4,300)
Contingent beneficial conversion feature	$ 0
Deemed dividend to preferred shareholders			(279)
Series C To One Series C [Member]
Numerator:
Contingent beneficial conversion feature			(57)
Series E Preferred Shares [Member]
Numerator:
Accretion to convertible redeemable preferred shares redemption value			(12,754)
Amortization of beneficial conversion feature			(4,139)
Acceleration of amortization of beneficial conversion feature of Series E upon initial public offering			$ (49,346)

Basic and diluted net income / (loss) per share (Schedule of Anti-dilutive Shares Excluded from Computation of Diluted Net Income per Common Share) (Detail) - shares	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Stock options and restricted shares [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Anti-dilutive shares excluded from computation of diluted net income per common share	1,673,342	9,041,434	2,513,017
Preferred shares [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Anti-dilutive shares excluded from computation of diluted net income per common share		93,213,683	110,953,534

Related Party Transactions - Schedule of Relationship Between Related Parties with their Groups (Detail)	12 Months Ended
	Dec. 31, 2015
Zhuhai Qianyou [Member]
Schedule of Other Related Party Transactions [Line Items]
Related parties relationship	Equity investment of the Group
Hao Cheng [Member]
Schedule of Other Related Party Transactions [Line Items]
Related parties relationship	Co-founder and shareholder of the Group
Chuan Wang [Member]
Schedule of Other Related Party Transactions [Line Items]
Related parties relationship	Director of the Company
Shenglong Zou [Member]
Schedule of Other Related Party Transactions [Line Items]
Related parties relationship	Co-founder and shareholder of the Group
Beijing Millet technology Co., LTD ("Beijing Xiaomi") [Member]
Schedule of Other Related Party Transactions [Line Items]
Related parties relationship	Company owned by a shareholder of the Group
Leading Advice Holdings Limited [Member]
Schedule of Other Related Party Transactions [Line Items]
Related parties relationship	Company owned by a Co-founder and shareholder of the Group
Vantage Point Global Limited [Member]
Schedule of Other Related Party Transactions [Line Items]
Related parties relationship	Shareholder of the Company
Aiden & Jasmine Limited [Member]
Schedule of Other Related Party Transactions [Line Items]
Related parties relationship	Shareholder of the Company
Kingsoft Corporation Limited [Member]
Schedule of Other Related Party Transactions [Line Items]
Related parties relationship	Shareholder of the Company

Related Party Transactions - Schedule of Significant Related Party Transactions (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Schedule of Other Related Party Transactions [Line Items]
Advertisement revenue	$ 4,802	$ 5,834	$ 2,951
Zhuhai Qianyou [Member]
Schedule of Other Related Party Transactions [Line Items]
Game sharing costs paid and payable to Zhuhai Qianyou	$ 127	$ 402	1,760
Hao Cheng [Member]
Schedule of Other Related Party Transactions [Line Items]
Advance to related party			$ 85
Repayment from related party		$ 85
Beijing Millet Technology Co., LTD [Member]
Schedule of Other Related Party Transactions [Line Items]
Technology service revenue related party	$ 344	303
Advertisement revenue		871
Shenglong Zou [Member]
Schedule of Other Related Party Transactions [Line Items]
Advance to related party		10
Chuan Wang [Member]
Schedule of Other Related Party Transactions [Line Items]
Advance to related party		7
Aiden & Jasmine Limited [Member]
Schedule of Other Related Party Transactions [Line Items]
Accrued to related party	$ 54	1,125
Vantage Point Global Limited [Member]
Schedule of Other Related Party Transactions [Line Items]
Accrued to related party	$ 146	$ 3,012

Related Party Transactions - Additional Information (Detail) - USD ($) $ in Thousands	1 Months Ended			12 Months Ended
	Nov. 30, 2014	Apr. 30, 2014	Nov. 30, 2013	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Schedule of Other Related Party Transactions [Line Items]
Common shares issued	10,000,000
Treasury stock [Member]
Schedule of Other Related Party Transactions [Line Items]
Common shares issued					24,195,412	9,073,732
Interest on withheld tax price				5.00%
Leading Advice Holdings Limited [Member]
Schedule of Other Related Party Transactions [Line Items]
Common shares issued		14,195,412	9,073,732
Aiden & Jasmine Limited [Member] \| Treasury stock [Member]
Schedule of Other Related Party Transactions [Line Items]
Shares repurchased					3,860,733
Shares repurchased, value					$ 10,879
Interest on withheld tax					$ 37
Vantage Point Global Limited [Member] \| Treasury stock [Member]
Schedule of Other Related Party Transactions [Line Items]
Shares repurchased					10,334,679
Shares repurchased, value					$ 29,121
Interest on withheld tax					$ 100

Related Party Transactions - Schedule of Amount Due to from Related Party (Detail) - USD ($) $ in Thousands	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Schedule of Other Related Party Transactions [Line Items]
Accounts payable to related party	$ 38	$ 84
Long-term payable to related party	4,337	4,137
Accounts and other receivable from related party	45	22
Zhuhai Qianyou [Member]
Schedule of Other Related Party Transactions [Line Items]
Accounts payable to related party	38	84	$ 225
Aiden & Jasmine Limited [Member]
Schedule of Other Related Party Transactions [Line Items]
Long-term payable to related party	1,179	1,125
Vantage Point Global Limited [Member]
Schedule of Other Related Party Transactions [Line Items]
Long-term payable to related party	3,158	3,012
Beijing Millet Technology Co., LTD [Member]
Schedule of Other Related Party Transactions [Line Items]
Accounts and other receivable from related party	$ 30	$ 5
Hao Cheng [Member]
Schedule of Other Related Party Transactions [Line Items]
Accounts and other receivable from related party			$ 85
Shenglong Zou [Member]
Schedule of Other Related Party Transactions [Line Items]
Accounts and other receivable from related party	$ 9	$ 10
Chuan Wang [Member]
Schedule of Other Related Party Transactions [Line Items]
Accounts and other receivable from related party	$ 6	$ 7

Taxation - Additional Information (Detail) - USD ($) $ in Thousands			12 Months Ended
	Apr. 14, 2008	Mar. 16, 2007	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010	Dec. 31, 2009	Dec. 31, 2008
Income Tax [Line Items]
Effective income tax rate			15.00%	10.00%	10.00%
Tax rate percent			15.00%
Research and development expense percentage			150.00%
Preferential tax rate			10.00%	10.00%	10.00%
Undistributed earnings of foreign subsidiaries			$ 34,313	$ 38,393
Foreign withholding taxes			$ 3,431	$ 3,839
PRC Enterprise [Member]
Income Tax [Line Items]
Effective income tax rate			25.00%
Accrued income tax			$ 0
Shenzhen Xunlei [Member]
Income Tax [Line Items]
Income tax holiday description			Shenzhen Xunlei has been claiming such Super Deduction in ascertaining its tax assessable profits from 2009 onwards. In addition, approved by the relevant local tax authority in July 2010, Shenzhen Xunlei was recognized as an enterprise engaged in software development activities, accordingly, it is entitled to a tax holiday of 2-year Exemption and 3-year 50% Reduction from 2010 onwards.
Shenzhen Onething [Member]
Income Tax [Line Items]
Effective income tax rate			15.00%
Preferential tax rate			15.00%
New Enterprise Income Tax Rate [Member]
Income Tax [Line Items]
Effective income tax rate		25.00%
Income tax transitional period		5 years
Favorable statutory tax rate	15.00%
New Enterprise Income Tax Rate [Member] \| Subsidiaries And VIE's Subsidiaries [Member]
Income Tax [Line Items]
Effective income tax rate			25.00%
Enterprise Income Tax Rate [Member]
Income Tax [Line Items]
Effective income tax rate			15.00%
Income tax holiday description			As approved by the local tax authority, Giganology Shenzhen was further exempt from EIT for two years commencing from its first year of profitable operation after offsetting prior years' tax losses, followed by a 50% reduction for the next three years (“2-year Exemption and 3-year 50% Reduction”) as a software enterprise. The first year of profit operation of Giganology Shenzhen was 2006. According to new EIT Law, Giganology Shenzhen could still enjoy the tax holidays which were grandfathered by the New EIT Law.
Shenzhen Special Economic Zone [Member]
Income Tax [Line Items]
Transitional income tax rates						25.00%	24.00%	22.00%	20.00%	18.00%
Giganology (Shenzhen) Co. Ltd [Member]
Income Tax [Line Items]
Effective income tax rate			25.00%	25.00%	25.00%

Taxation - Schedule of Current and Deferred Portions of Income Tax Expense (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Taxation [Abstract]
Current income tax expenses	$ 289	$ 397	$ 175
Deferred income tax benefits	(1,175)	66	385
Income tax expense/ (benefit)	$ (886)	$ 463	$ 560

Taxation - Summary of Aggregate Amount and Per Share Effect of Tax Holiday (Detail) - USD ($) $ / shares in Units, $ in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Taxation [Abstract]
Aggregate dollar effect	$ (830)	$ 2,784	$ 4,638
Per share effect-basic	$ 0.00	$ 0.01	$ 0.08
Per share effect-diluted	$ 0.00	$ 0.01	$ 0.06

Taxation - Reconciliation of Total Tax (Benefit) Expense (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Continuing operations
Income tax expense / (benefit) at PRC statutory rate (based on statutory tax rate applicable to enterprises in Shenzhen, China)	$ (438)	$ 7,211	$ 5,878
Effects of differences in tax rates in different jurisdictions applicable to entities of the Group outside of the PRC	2,400	(838)	667
Non-deductible expenses	$ 14	714	102
Effect of Super Deduction available to Shenzhen Xunlei		(1,365)	(1,763)
Effect of tax holiday	$ (369)	(4,613)	$ (5,270)
Change in valuation allowance of deferred tax assets	4,750	291
Effect on deferred tax assets due to change in tax rates	(8)	(103)	$ 1,764
Outside basis difference arising from VIE and its subsidiaries in the PRC	(2,174)	478	713
Expiration of tax loss	290	51	31
Others	(5,351)	(1,363)	(1,562)
Income tax expense/ (benefit)	$ (886)	$ 463	$ 560

Taxation - Summary of Changes in Deferred Tax Asset and Liability Balances (Detail) - USD ($) $ in Thousands	Dec. 31, 2015	Dec. 31, 2014
Deferred tax assets, current portion:
Net operating loss carried forward	$ 417	$ 315
Amortization of intangible assets arising from intragroup transactions	95	$ 69
Impairment of long-term equity investment	115
Allowance for advance to suppliers	120
Valuation allowance	(81)
Deferred tax assets, current portion, net	689	$ 2,091
Deferred tax assets, non-current portion:
Net operating loss carried forward	$ 13,016	6,103
Allowance for doubtful accounts		796
Amortization of intangible assets arising from intragroup transactions	$ 54	105
Valuation allowance	(4,477)	(291)
Deferred tax assets, non-current portion, net	8,593	10,862
Deferred tax liability, non-current portion:
Outside basis difference	$ (6,378)	(8,552)
Content Copyrights [Member]
Deferred tax assets, current portion:
Amortization of intangible assets arising from intragroup transactions		1,675
Deferred tax assets, non-current portion:
Amortization of intangible assets arising from intragroup transactions		4,133
Online game licenses [Member]
Deferred tax assets, current portion:
Impairment of online game licenses	$ 23	32
Deferred tax assets, non-current portion:
Impairment of online game licenses		$ 16

Taxation - Summary of Changes in Deferred Tax Asset and Liability Balances (Parenthetical) (Detail) $ in Thousands, ¥ in Millions	Dec. 31, 2015 USD ($)	Dec. 31, 2015 CNY (¥)	Dec. 31, 2014 USD ($)
Income Tax [Line Items]
Net operating tax loss carryforwards	$ 53,161
Deferred tax liabilities	$ 25,512		$ 34,210
Shenzhen Xunlei [Member]
Income Tax [Line Items]
Capitalized software sold at market valuation \| ¥		¥ 42

Taxation - Summary of Net Operating Loss Carryforwards (Detail) $ in Thousands	Dec. 31, 2015 USD ($)
Net operating tax loss carryforwards [Line Items]
Net operating tax loss carryforwards	$ 53,161
2016 [Member]
Net operating tax loss carryforwards [Line Items]
Net operating tax loss carryforwards	1,398
2017 [Member]
Net operating tax loss carryforwards [Line Items]
Net operating tax loss carryforwards	889
2018 [Member]
Net operating tax loss carryforwards [Line Items]
Net operating tax loss carryforwards	6,191
2019 [Member]
Net operating tax loss carryforwards [Line Items]
Net operating tax loss carryforwards	3,647
2020 and thereafter [Member]
Net operating tax loss carryforwards [Line Items]
Net operating tax loss carryforwards	$ 41,036

Taxation - Schedule of Movement of Valuation Allowance (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Taxation [Abstract]
Beginning balance	$ (291)		$ (43)
Additions	$ (4,268)	$ (291)
Write-off			$ 43
Ending balance	$ (4,559)	$ (291)

Fair Value Measurements - Schedule of Financial Instruments Measured at Fair Value (Detail) - USD ($) $ in Thousands	Dec. 31, 2015	Dec. 31, 2014
Fair Value Of Assets And Liabilities Measured On Non Recurring Basis [Line Items]
Fair value measurements, Short term investments	$ 70,328	$ 29,427
Fair value measurements, Total	384,685	60,544
Time deposits [Member]
Fair Value Of Assets And Liabilities Measured On Non Recurring Basis [Line Items]
Fair value measurements, Cash equivalent, time deposits with original maturities less than three months	314,357	31,117
Investments in financial instruments [Member]
Fair Value Of Assets And Liabilities Measured On Non Recurring Basis [Line Items]
Fair value measurements, Short term investments	70,328	29,427
Significant other observable inputs (Level 2) [Member]
Fair Value Of Assets And Liabilities Measured On Non Recurring Basis [Line Items]
Fair value measurements, Total	384,685	60,544
Significant other observable inputs (Level 2) [Member] \| Time deposits [Member]
Fair Value Of Assets And Liabilities Measured On Non Recurring Basis [Line Items]
Fair value measurements, Cash equivalent, time deposits with original maturities less than three months	314,357	31,117
Significant other observable inputs (Level 2) [Member] \| Investments in financial instruments [Member]
Fair Value Of Assets And Liabilities Measured On Non Recurring Basis [Line Items]
Fair value measurements, Short term investments	$ 70,328	$ 29,427

Other Income, Net - Schedule of Other Income, Net (Detail) - USD ($)
$ in Thousands

12 Months Ended

Dec. 31, 2015

Dec. 31, 2014

Dec. 31, 2013

Other income, net [Abstract]

Subsidy income

$ 1,902

$ 2,236

$ 1,393

8,054

1,531

Investment income from short-term investments

$ 3,666

3,471

$ 1,847

Dilution gains arising from deemed disposal of investment (Note 11)

702

^[1],[2]

$ 449

^[1],[2]

Investment loss impairment of long-term investment

(802)

Exchange losses

(2,771)

$ (176)

$ (252)

Settlement income

755

489

249

Others

175

(557)

(89)

Other income, net

$ 3,627

$ 13,966

$ 4,679

[1]

[2]

Commitments and Contingencies - Additional Information (Detail) ¥ in Thousands, $ in Thousands	12 Months Ended
	Dec. 31, 2015 USD ($)	Dec. 31, 2015 CNY (¥)	Dec. 31, 2014 USD ($)	Dec. 31, 2013 USD ($)	Apr. 21, 2016 item
Loss Contingencies [Line Items]
Legal and litigation related expenses	$ 3,307		$ 1,073	$ 263
Legal and litigation related expenses	2,601		451
Scenario, Forecast [Member] \| Copyright infringement [Member]
Loss Contingencies [Line Items]
Number of lawsuits pending \| item					53
Pending Litigation [Member]
Loss Contingencies [Line Items]
Aggregate amount of claimed damages	1,070	¥ 6,960
Pending Litigation [Member] \| Scenario, Forecast [Member]
Loss Contingencies [Line Items]
Number of lawsuits pending \| item					65
MPAA, and six major U.S. entertainment content providers [Member]
Loss Contingencies [Line Items]
Aggregate amount of claimed damages	1,370	¥ 8,400
Rental commitments [Member]
Loss Contingencies [Line Items]
Total lease expenses	2,751		3,068	2,786
Bandwidth Lease Commitments [Member]
Loss Contingencies [Line Items]
Total lease expenses for continuing operations	37,218		33,545	28,174
Total lease expenses for discontinued operations	$ 2,983		$ 6,828	$ 7,279
Content Copyrights [Member]
Loss Contingencies [Line Items]
Irrevocable purchase obligations
Online game licenses [Member]
Loss Contingencies [Line Items]
Irrevocable purchase obligations	$ 5,844

Commitments and Contingencies - Future Minimum Payments under Non-Cancellable Leases (Detail) $ in Thousands	Dec. 31, 2015 USD ($)
Rental commitments [Member]
Operating Leased Assets [Line Items]
2016	$ 751
2017	$ 174
2018
Future minimum payments, Total	$ 925
Bandwidth Lease Commitments [Member]
Operating Leased Assets [Line Items]
2016	15,715
2017	9,965
Future minimum payments, Total	$ 25,680

Certain Risks and Concentration - Additional Information (Detail) $ in Thousands	12 Months Ended
	Dec. 31, 2015 USD ($) Customer	Dec. 31, 2014 USD ($) Customer	Dec. 31, 2013 Customer
Concentration Risk [Line Items]
Maximum foreign ownership in internet information provider or other value-added telecommunication service provider's business allowed under PRC laws and regulations	50.00%
Retained earnings and distributable reserves	$ (12,593)	$ 574
Number of top customers accounted for net revenues \| Customer	10	10	10
Net revenues [Member] \| Customer concentration risk [Member]
Concentration Risk [Line Items]
Percentage of net revenues accounted from customers	26.00%	16.00%	14.00%
Shenzhen Xunlei Networking Technologies, Co., Ltd [Member]
Concentration Risk [Line Items]
operating contract term	10 years
Variable Interest Entity, Primary Beneficiary [Member]
Concentration Risk [Line Items]
Retained earnings and distributable reserves	$ 25,512
Variable Interest Entity, Not Primary Beneficiary [Member]
Concentration Risk [Line Items]
Retained earnings and distributable reserves		$ 34,210

Certain Risks and Concentration - Schedule of Consolidated Financial Information of VIEs and VIE's Subsidiaries - Balance sheet (Detail) - USD ($)
$ in Thousands

Dec. 31, 2015

Dec. 31, 2014

Dec. 31, 2013

Dec. 31, 2012

$ 361,777

$ 404,275

$ 93,906

$ 81,906

70,328

29,427

11,266

5,180

Due from related parties

689

$ 2,091

480

$ 13,068

$ 13,890

Held for sale assets

47,045

$ 457,653

501,930

Property and equipment, net

8,593

10,862

18,036

$ 16,408

Construction in progress

13,433

$ 15,100

Prepayments for content copyrights

$ 21,896

23,237

1,532

Other long-term prepayments

$ 7,431

5,795

538,361

580,362

Accounts payables

21,736

14,937

Due to a related party

25,113

27,745

Held for sale liabilities

$ 27,379

30,333

27,367

$ 76,736

103,020

Deferred revenue and income, non-current portion

^[1]

5,383

6,825

Variable Interest Entity, Primary Beneficiary [Member]

93,680

123,341

32,461

43,849

69,522

28,575

11,573

5,508

Due from related parties

351

1,358

480

$ 31,659

10,147

Held for sale assets

46,325

$ 146,076

135,768

Equity method investments

9,884

5,498

Property and equipment, net

6,791

8,262

17,991

$ 16,370

Construction in progress

14,297

$ 16,635

Prepayments for content copyrights

$ 21,896

23,237

1,239

Other long-term prepayments

$ 7,430

5,795

Total non-current assets

78,303

77,076

224,379

212,844

Accounts payables

33,262

24,504

Due to a related party

24,902

27,534

Income tax payable

2,407

2,554

Held for sale liabilities

$ 131,312

85,701

26,438

$ 191,921

166,815

Deferred revenue and income, non-current portion

4,751

6,452

Total non-current liabilities

4,751

6,452

$ 196,672

$ 173,267

[1]	As of December 31, 2015, the non-current portion included Membership subscription revenue of USD 719 thousand (2014: USD 1,120 thousand), Government grants of USD 4,032 thousand (2014: USD 4,863 thousand), and Reimbersement from the depositary of USD 632 thousand (2014: 842 thousand).

Certain Risks and Concentration - Schedule of Consolidated Financial Information of VIEs and VIE's Subsidiaries - Income Statement (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Net revenue from continuing operations	$ 129,635	$ 133,934	$ 118,127
Net income / (loss) attributable to Xunlei Limited	(13,167)	10,812	10,662
Variable Interest Entity, Primary Beneficiary [Member]
Net revenue from continuing operations	129,198	132,515	116,381
Net income / (loss) attributable to Xunlei Limited	$ (6,408)	$ 12,677	$ 13,940

The portion of profit or loss for the period, net of income taxes, which is attributable to the parent.

Certain Risks and Concentration - Schedule of Consolidated Financial Information of VIEs and VIE's Subsidiaries - Cash Flow (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Net cash provided by operating activities	$ 13,764	$ 48,202	$ 85,533
Net cash (used in) / generated from investing activities	(54,982)	(70,546)	(78,352)
Net cash provided by financing activities	5,030	333,268	2,487
Net increase in cash and cash equivalents	(36,188)	310,924	9,668
Variable Interest Entity, Primary Beneficiary [Member]
Net cash provided by operating activities	41,723	70,822	92,580
Net cash (used in) / generated from investing activities	(51,721)	(78,335)	(66,243)
Net cash provided by financing activities	1,055	856	2,487
Net increase in cash and cash equivalents	$ (8,943)	$ (6,657)	$ 28,824

Subsequent Events - Additional Information (Detail) - USD ($) $ in Thousands	1 Months Ended	12 Months Ended
	Mar. 31, 2016	Dec. 31, 2014	Dec. 31, 2013	Jan. 31, 2016	Jan. 27, 2016	Dec. 31, 2015
Subsequent Event [Line Items]
Share repurchase program amount		$ 20,000				$ 20,000
Consideration paid		$ 33,000
Scenario, Forecast [Member] \| Restricted shares [Member]
Subsequent Event [Line Items]
Restricted stock granted	1,018,500
Subsequent Event [Member] \| Shanghai Lexiang Technologies Co., Ltd (Lexiang) [Member]
Subsequent Event [Line Items]
Consideration paid	$ 12,700
Equity interests acquired	10.00%
Subsequent Event [Member] \| Share Repurchase Program, 2016 [Member]
Subsequent Event [Line Items]
Share repurchase program amount				$ 20,000	$ 20,000

Additional information: condensed financial statements of the Company - Schedule of Condensed Balance Sheets (Detail) - USD ($)
$ in Thousands

Dec. 31, 2015

Dec. 31, 2014

Dec. 31, 2013

Dec. 31, 2012

$ 361,777

$ 404,275

$ 93,906

$ 81,906

13,068

13,890

457,653

501,930

13,433

15,100

538,361

580,362

Accounts payable

21,736

14,937

25,113

27,745

76,736

103,020

^[1]

5,383

6,825

4,337

4,137

Other long-term payable

846

807

$ 93,680

$ 123,341

Treasury shares 30,274,602 shares as at December 31, 2014 and 29,558,094 shares as at December 31, 2015

Shareholders' equity

Common shares

$ 85

$ 82

Total Xunlei Limited's shareholders' equity

446,749

457,891

79,194

67,968

Total liabilities and shareholders' equity

538,361

580,362

Xunlei Limited [Member]

Due from subsidiaries and consolidated VIEs

292,175

309,457

$ 28,863

$ 30,240

92,864

67,397

1,090

6,709

$ 386,129

383,563

Investments in subsidiaries and consolidated VIEs

394

$ 68,481

82,360

454,610

466,317

Accounts payable

101

211

1,735

2,328

2,047

2,640

$ 632

$ 842

Warrants liabilities

$ 4,337

$ 4,137

Other long-term payable

845

807

$ 7,861

$ 8,426