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In connection with deconsolidation of a subsidiary or derecognition of a group of assets, the portion of any gain (loss) recognized by the parent, during the period, which is related to the remeasurement of any retained investment in the former subsidiary or group of assets to its fair value.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 810
-SubTopic 10
-Section 50
-Paragraph 1B
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=84161450&loc=SL4582445-111684

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The percentage of ownership of common stock or equity participation in the investee accounted for under the equity method of accounting.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 323
-SubTopic 10
-Section 50
-Paragraph 3
-Subparagraph (a)(1)
-URI http://asc.fasb.org/extlink&oid=66011266&loc=d3e33918-111571

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Amount of gain (loss) on sale or disposal of an equity method investment.

No definition available.

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Amount of gain (loss) on sale or disposal of equity in securities of subsidiaries.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 225
-Section S99
-Paragraph 1
-Subparagraph (13)(g)
-URI http://asc.fasb.org/extlink&oid=6879574&loc=d3e536633-122882

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

No definition available.

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The cash inflow associated with the deconsolidation of a previously consolidated subsidiary or the sale of investment in consolidated subsidiaries (generally greater than 50 percent).

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 12
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=98514028&loc=d3e3179-108585

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The cash inflow associated with the sale of equity method investments, which are investments in joint ventures and entities in which the entity has an equity ownership interest normally of 20 to 50 percent and exercises significant influence.

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Percentage of subsidiary's or equity investee's stock owned by parent company after stock transaction.

No definition available.

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The aggregate amount of the carrying amount of the assets and liabilities for the disposal of subsidiaries.

No definition available.

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The percentage of disposal of equity interest.

No definition available.

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The percentage equity method investment sold during the period.

No definition available.

Name:	yy_EquityMethodInvestmentDisposalPercentage
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Data Type:	num:percentItemType
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The aggregate amount of the fair value of consideration received, the fair value of the retained non-controlling interests and the carrying amount of non-controlling interests for the disposal of subsidiaries.

No definition available.

Name:	yy_FairValueConsiderationReceived
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No definition available.

Name:	yy_FairValueOfConsiderationReceivedFairValueRetainedNoncontrollingInterestAndCarryingAmountOfNoncontrollingInterest
Namespace Prefix:	yy_
Data Type:	xbrli:monetaryItemType
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The percentage of subsidiary interest sold during the period.

No definition available.