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Related Party Transactions - Additional Information (Detail) (USD $) In Thousands, except Share data, unless otherwise specified	1 Months Ended
	Nov. 30, 2014	Apr. 30, 2014	Nov. 30, 2013	Sep. 30, 2014	Sep. 05, 2014
Schedule of Other Related Party Transactions [Line Items]
Common shares issued	10,000,000us-gaap_StockIssuedDuringPeriodSharesNewIssues
Leading Advice Holdings Limited [Member]
Schedule of Other Related Party Transactions [Line Items]
Common shares issued		14,195,412us-gaap_StockIssuedDuringPeriodSharesNewIssues / us-gaap_RelatedPartyTransactionsByRelatedPartyAxis = xnet_LeadingAdviceHoldingsLimitedMember	9,073,732us-gaap_StockIssuedDuringPeriodSharesNewIssues / us-gaap_RelatedPartyTransactionsByRelatedPartyAxis = xnet_LeadingAdviceHoldingsLimitedMember
Kingsoft Cloud Storage Business [Member]
Schedule of Other Related Party Transactions [Line Items]
Cash consideration paid for assets acquired				$ 33,000us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedAssets / us-gaap_BusinessAcquisitionAxis = xnet_KingsoftCloudStorageBusinessMember	$ 33,303us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedAssets / us-gaap_BusinessAcquisitionAxis = xnet_KingsoftCloudStorageBusinessMember
Percentage of ownership owned by share holder				11.40%us-gaap_MinorityInterestOwnershipPercentageByNoncontrollingOwners / us-gaap_BusinessAcquisitionAxis = xnet_KingsoftCloudStorageBusinessMember

X

- Definition

Amount of assets acquired at the acquisition date.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 805

-SubTopic 20

-Section 50

-Paragraph 1

-Subparagraph (c)

-URI http://asc.fasb.org/extlink&oid=39739317&loc=d3e4845-128472

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- Definition

The equity interest of noncontrolling shareholders, partners or other equity holders in consolidated entity.

+ References

No definition available.

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X

- Definition

Number of new stock issued during the period.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 04

-Article 3



Reference 2: 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 3: 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 4: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 02

-Paragraph 29, 30

-Article 5

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