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Cash and Cash Equivalents - Additional Information (Detail) | 12 Months Ended
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Dec. 31, 2013
Cash and Cash Equivalents [Abstract] |
Cash and cash equivalents maturity period | 3 months

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- Details
Name: | us-gaap_CashAndCashEquivalentsAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

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- Definition Represents the maximum period for maturity of cash and cash equivalents. + References No definition available. + Details
Name: | xnet_CashAndCashEquivalentMaturityPeriod
Namespace Prefix: | xnet_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration