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Summary of Significant Accounting Policies - Schedule of Estimated Useful Life of Intangible Assets (Detail)	12 Months Ended
	Dec. 31, 2014
Trademarks [Member]
Finite-Lived Intangible Assets [Line Items]
Intangible assets, Estimated useful life	15 years
Customer Relationships [Member]
Finite-Lived Intangible Assets [Line Items]
Intangible assets, Estimated useful life	5 years
Websites [Member]
Finite-Lived Intangible Assets [Line Items]
Intangible assets, Estimated useful life	4 years
Domain Names [Member]
Finite-Lived Intangible Assets [Line Items]
Intangible assets, Estimated useful life	4 years
Licensing Agreements [Member]
Finite-Lived Intangible Assets [Line Items]
Intangible assets, Estimated useful life	1 year 9 months

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- Definition

Useful life of finite-lived intangible assets, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

No definition available.

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