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v2.4.1.9

Taxation - Additional Information (Detail) (USD $) | 12 Months Ended | 0 Months Ended | 1 Months Ended | 12 Months Ended
--- | --- | --- | --- | ---
Dec. 31, 2014 | Dec. 31, 2013 | Dec. 31, 2012 | Apr. 14, 2008 | Mar. 16, 2007 | Feb. 28, 2011 | Dec. 31, 2011 | Dec. 31, 2010 | Dec. 31, 2009 | Dec. 31, 2008
Income Tax [Line Items] |  |  |  |  |  |  |  |  |  |
Effective income tax rate | 10.00%us-gaap_EffectiveIncomeTaxRateContinuingOperations | 10.00%us-gaap_EffectiveIncomeTaxRateContinuingOperations | 12.50%us-gaap_EffectiveIncomeTaxRateContinuingOperations |  |  |  |  |  |  |
Research and development expense percentage | 150.00%us-gaap_EffectiveIncomeTaxRateReconciliationTaxCreditsResearch |  |  |  |  |  |  |  |  |
Preferential tax rate |  | 10.00%xnet_PreferentialEnterpriseIncomeTaxRate |  |  |  |  |  |  |  |
Undistributed earnings of foreign subsidiaries | $ 38,393,000 us-gaap_UndistributedEarningsOfForeignSubsidiaries | $ 31,385,000 us-gaap_UndistributedEarningsOfForeignSubsidiaries |  |  |  |  |  |  |  |
Foreign withholding taxes | 3,839,000 xnet_IncomeTaxReconciliationForeignWithholdingTaxes | 3,138,000 xnet_IncomeTaxReconciliationForeignWithholdingTaxes |  |  |  |  |  |  |  |
PRC Enterprise [Member] |  |  |  |  |  |  |  |  |  |
Income Tax [Line Items] |  |  |  |  |  |  |  |  |  |
Effective income tax rate | 25.00%us-gaap_EffectiveIncomeTaxRateContinuingOperations / dei_LegalEntityAxis = xnet_PeoplesRepublicOfChinaEntitiesMember |  |  |  |  |  |  |  |  |
Accrued income tax | $ 0 us-gaap_AccruedIncomeTaxes / dei_LegalEntityAxis = xnet_PeoplesRepublicOfChinaEntitiesMember |  |  |  |  |  |  |  |  |
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. |  |  |  |  |  |  |  |  |
New Enterprise Income Tax Rate [Member] |  |  |  |  |  |  |  |  |  |
Income Tax [Line Items] |  |  |  |  |  |  |  |  |  |
Effective income tax rate |  |  |  |  | 25.00%us-gaap_EffectiveIncomeTaxRateContinuingOperations / us-gaap_IncomeTaxAuthorityAxis = xnet_NewEnterpriseIncomeTaxRateMember |  |  |  |  |
Income tax transitional period |  |  |  |  | 5 years |  |  |  |  |
Favorable statutory tax rate |  |  |  | 15.00%us-gaap_EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate / us-gaap_IncomeTaxAuthorityAxis = xnet_NewEnterpriseIncomeTaxRateMember |  |  |  |  |  |
New Enterprise Income Tax Rate [Member] | Subsidiaries And VIE's Subsidiaries [Member] |  |  |  |  |  |  |  |  |  |
Income Tax [Line Items] |  |  |  |  |  |  |  |  |  |
Effective income tax rate | 25.00%us-gaap_EffectiveIncomeTaxRateContinuingOperations / us-gaap_IncomeTaxAuthorityAxis = xnet_NewEnterpriseIncomeTaxRateMember / dei_LegalEntityAxis = us-gaap_SubsidiariesMember |  |  |  |  |  |  |  |  |
High and New Technology Enterprise [Member] |  |  |  |  |  |  |  |  |  |
Income Tax [Line Items] |  |  |  |  |  |  |  |  |  |
Certificate effective date |  |  |  |  |  | Jan. 01, 2011 |  |  |  |
Enterprise Income Tax Rate [Member] |  |  |  |  |  |  |  |  |  |
Income Tax [Line Items] |  |  |  |  |  |  |  |  |  |
Effective income tax rate | 15.00%us-gaap_EffectiveIncomeTaxRateContinuingOperations / us-gaap_IncomeTaxAuthorityAxis = xnet_EnterpriseIncomeTaxRateMember |  |  |  |  |  |  |  |  |
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%xnet_TransitionalIncomeTaxRates / us-gaap_IncomeTaxAuthorityAxis = xnet_ShenzhenSpecialEconomicZoneMember |  |  |  | 24.00%xnet_TransitionalIncomeTaxRates / us-gaap_IncomeTaxAuthorityAxis = xnet_ShenzhenSpecialEconomicZoneMember | 22.00%xnet_TransitionalIncomeTaxRates / us-gaap_IncomeTaxAuthorityAxis = xnet_ShenzhenSpecialEconomicZoneMember | 20.00%xnet_TransitionalIncomeTaxRates / us-gaap_IncomeTaxAuthorityAxis = xnet_ShenzhenSpecialEconomicZoneMember | 18.00%xnet_TransitionalIncomeTaxRates / us-gaap_IncomeTaxAuthorityAxis = xnet_ShenzhenSpecialEconomicZoneMember
Giganology (Shenzhen) Co. Ltd [Member] |  |  |  |  |  |  |  |  |  |
Income Tax [Line Items] |  |  |  |  |  |  |  |  |  |
Effective income tax rate | 25.00%us-gaap_EffectiveIncomeTaxRateContinuingOperations / us-gaap_IncomeTaxAuthorityAxis = xnet_GiganologyShenzhenCoLtdMember | 25.00%us-gaap_EffectiveIncomeTaxRateContinuingOperations / us-gaap_IncomeTaxAuthorityAxis = xnet_GiganologyShenzhenCoLtdMember | 25.00%us-gaap_EffectiveIncomeTaxRateContinuingOperations / us-gaap_IncomeTaxAuthorityAxis = xnet_GiganologyShenzhenCoLtdMember |  |  |  |  |  |  |

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