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Deferred Revenue and Income - Schedule of Deferred Revenue and Income (Parenthetical) (Detail) (USD $) | 1 Months Ended | 12 Months Ended |
--- | --- | --- | ---
Dec. 31, 2014 | Dec. 31, 2014 | Dec. 31, 2013
Deferred Revenue Arrangement [Line Items] |  |  |
Reimbursement received from depository | $ 1,200,000 xnet_ProceedsFromReimbursementOfInitialPublicOfferingExpenses | $ 1,158,000 xnet_ProceedsFromReimbursementOfInitialPublicOfferingExpenses |
Deferred income withholding tax | 300,000 xnet_WithholdingTaxForReimbursementFromDepository |  |
Deferred income amortized depositary service period | 5 years |  |
Deferred revenue and income, non-current | 7,294,000 us-gaap_DeferredRevenueNoncurrent | 7,294,000 us-gaap_DeferredRevenueNoncurrent | 9,190,000 us-gaap_DeferredRevenueNoncurrent
Membership subscription revenues [Member] |  |  |
Deferred Revenue Arrangement [Line Items] |  |  |
Deferred revenue and income, non-current | 1,121,000 us-gaap_DeferredRevenueNoncurrent / us-gaap_DeferredRevenueArrangementTypeAxis = xnet_MembershipSubscriptionRevenuesMember | 1,121,000 us-gaap_DeferredRevenueNoncurrent / us-gaap_DeferredRevenueArrangementTypeAxis = xnet_MembershipSubscriptionRevenuesMember | 2,610,000 us-gaap_DeferredRevenueNoncurrent / us-gaap_DeferredRevenueArrangementTypeAxis = xnet_MembershipSubscriptionRevenuesMember
Government grants [Member] |  |  |
Deferred Revenue Arrangement [Line Items] |  |  |
Deferred revenue and income, non-current | 5,331,000 us-gaap_DeferredRevenueNoncurrent / us-gaap_DeferredRevenueArrangementTypeAxis = xnet_GovernmentGrantMember | 5,331,000 us-gaap_DeferredRevenueNoncurrent / us-gaap_DeferredRevenueArrangementTypeAxis = xnet_GovernmentGrantMember | 6,580,000 us-gaap_DeferredRevenueNoncurrent / us-gaap_DeferredRevenueArrangementTypeAxis = xnet_GovernmentGrantMember
Reimbursement from the depository [Member] |  |  |
Deferred Revenue Arrangement [Line Items] |  |  |
Deferred revenue and income, non-current | $ 842,000 us-gaap_DeferredRevenueNoncurrent / us-gaap_DeferredRevenueArrangementTypeAxis = xnet_ReimbursementFromDepositoryMember | $ 842,000 us-gaap_DeferredRevenueNoncurrent / us-gaap_DeferredRevenueArrangementTypeAxis = xnet_ReimbursementFromDepositoryMember |

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- Definition The noncurrent portion of deferred revenue amount as of balance sheet date. Deferred revenue is a liability related to a revenue producing activity for which revenue has not yet been recognized, and is not expected to be recognized in the next twelve months. Generally, an entity records deferred revenue when it receives consideration from a customer before achieving certain criteria that must be met for revenue to be recognized in conformity with GAAP. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 605 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SAB TOPIC 13.A.4(a).Q1) -URI http://asc.fasb.org/extlink&oid=27012821&loc=d3e214044-122780 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section 45 -Paragraph 8 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=28358313&loc=d3e6935-107765 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Staff Accounting Bulletin (SAB) -Number Topic 13 -Section A + Details
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- Definition Deferred income amortization period for reimbursement from depository. + References No definition available. + Details
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- Definition Proceeds from reimbursement of initial public offering expenses. + References No definition available. + Details
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- Definition Withholding tax for reimbursement from depository. + References No definition available. + Details
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