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Taxation - Summary of Changes in Deferred Tax Asset and Liability Balances (Detail) (USD $) In Thousands, unless otherwise specified | Dec. 31, 2014 | Dec. 31, 2013
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Deferred tax assets, current portion: |  |
Net operating loss carried forward | $ 315 xnet_DeferredTaxAssetsOperatingLossCarryforwardsCurrent | $ 50 xnet_DeferredTaxAssetsOperatingLossCarryforwardsCurrent
Amortization of intangible assets arising from intragroup transactions | 69 xnet_DeferredTaxAssetsAmortizationOfIntangibleAssetsCurrent | 69 xnet_DeferredTaxAssetsAmortizationOfIntangibleAssetsCurrent
Deferred tax assets, current portion, net | 2,091 us-gaap_DeferredTaxAssetsNetCurrent | 1,185 us-gaap_DeferredTaxAssetsNetCurrent
Deferred tax assets, non-current portion: |  |
Net operating loss carried forward | 6,103 xnet_DeferredTaxAssetsOperatingLossCarryforwardsNoncurrent | 3,676 xnet_DeferredTaxAssetsOperatingLossCarryforwardsNoncurrent
Allowance for doubtful accounts | 796 xnet_DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsAllowanceForDoubtfulAccountsNoncurrent | 1,311 xnet_DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsAllowanceForDoubtfulAccountsNoncurrent
Amortization of intangible assets arising from intragroup transactions | 105 xnet_DeferredTaxAssetsAmortizationOfIntangibleAssetsNonCurrent | 175 xnet_DeferredTaxAssetsAmortizationOfIntangibleAssetsNonCurrent
Valuation allowance | (291)us-gaap_DeferredTaxAssetsValuationAllowanceNoncurrent |
Deferred tax assets, non-current portion, net | 10,862 us-gaap_DeferredTaxAssetsNetNoncurrent | 9,430 us-gaap_DeferredTaxAssetsNetNoncurrent
Deferred tax liability, non-current portion: |  |
Outside basis difference | (8,552)us-gaap_DeferredTaxLiabilitiesNoncurrent | (8,074)us-gaap_DeferredTaxLiabilitiesNoncurrent
Content Copyrights [Member] |  |
Deferred tax assets, current portion: |  |
Amortization of intangible assets arising from intragroup transactions | 1,675 xnet_DeferredTaxAssetsAmortizationOfIntangibleAssetsCurrent / us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis = us-gaap_CopyrightsMember | 1,033 xnet_DeferredTaxAssetsAmortizationOfIntangibleAssetsCurrent / us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis = us-gaap_CopyrightsMember
Deferred tax assets, non-current portion: |  |
Amortization of intangible assets arising from intragroup transactions | 4,133 xnet_DeferredTaxAssetsAmortizationOfIntangibleAssetsNonCurrent / us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis = us-gaap_CopyrightsMember | 4,219 xnet_DeferredTaxAssetsAmortizationOfIntangibleAssetsNonCurrent / us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis = us-gaap_CopyrightsMember
Online game licenses [Member] |  |
Deferred tax assets, current portion: |  |
Impairment of online game licenses | 32 xnet_DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsImpairmentLossesCurrent / us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis = xnet_OnlineGameLicensesMember | 33 xnet_DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsImpairmentLossesCurrent / us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis = xnet_OnlineGameLicensesMember
Deferred tax assets, non-current portion: |  |
Impairment of online game licenses | $ 16 xnet_DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsImpairmentLossesNonCurrent / us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis = xnet_OnlineGameLicensesMember | $ 49 xnet_DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsImpairmentLossesNonCurrent / us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis = xnet_OnlineGameLicensesMember

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