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Percentage of the Variable Interest Entity's (VIE) voting interest owned by (or beneficial interest in) the reporting entity (directly or indirectly).

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 810
-SubTopic 10
-Section 50
-Paragraph 5A
-Subparagraph (d)
-URI http://asc.fasb.org/extlink&oid=108788376&loc=SL6759159-111685

Name:	us-gaap_VariableInterestEntityOwnershipPercentage
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The maximum foreign ownership in internet information provider or value-added telecommunication service provider's business allowed under PRC laws and regulations.

No definition available.

Name:	yy_ForeignOwnershipPercentageInInternetBasedBusinessesMaximum
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The maximum percentage of the income of variable interest entities which may be charged as service fees.

No definition available.

Name:	yy_MaximumPercentageOfIncomeOfVariableInterestEntitiesWhichMayBeChargedAsServiceFees
Namespace Prefix:	yy_
Data Type:	num:percentItemType
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The maximum percentage of the profits payable by variable interest entities of the entity.

No definition available.

Name:	yy_MaximumPercentageOfProfitsPayableByVariableInterestEntities
Namespace Prefix:	yy_
Data Type:	num:percentItemType
Balance Type:	na
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Represent the service fees for technology support, technology services, business support or consulting services.

No definition available.

Name:	yy_ServiceFees
Namespace Prefix:	yy_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

Represents the term of contractual agreements.

No definition available.

Name:	yy_TermOfContractualAgreements
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Name:	srt_RangeAxis=srt_MinimumMember
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Name:	srt_RangeAxis=srt_MaximumMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

Name:	us-gaap_VariableInterestEntitiesByClassificationOfEntityAxis=yy_GuangzhouHuaduoNetworkTechnologyCompanyLimitedMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

Name:	dei_LegalEntityAxis=yy_HuanjuShidaiTechnologyBeijingCompanyLimitedAndGuangzhouHuanjuShidaiInformationTechnologyCompanyLimitedMember
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Name:	us-gaap_VariableInterestEntitiesByClassificationOfEntityAxis=yy_BeijingTudaScienceAndTechnologyCompanyLimitedAndGuangzhouHuaduoNetworkTechnologyCompanyLimitedMember
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