Components of Acquired Intangible Assets (Detail) (USD $) In Thousands, unless otherwise specified	Mar. 31, 2014	Dec. 31, 2013
Intangible Assets [Line Items]
Amortizable intangible assets, Gross Carrying Amount	$ 197,122	$ 197,122
Amortizable intangible assets, Accumulated Amortization	(21,883)	(18,357)
Amortizable intangible assets, Net Carrying Value	175,239	178,765
Indefinite-lived trademarks	89,676	89,676
Total acquired intangible assets, Gross Carrying Amount	286,798	286,798
Total acquired intangible assets, Net Carrying Value	264,915	268,441
Developed technology
Intangible Assets [Line Items]
Amortizable intangible assets, Gross Carrying Amount	5,143	5,143
Amortizable intangible assets, Accumulated Amortization	(1,106)	(677)
Amortizable intangible assets, Net Carrying Value	4,037	4,466
Customer Relationships
Intangible Assets [Line Items]
Amortizable intangible assets, Gross Carrying Amount	191,979	191,979
Amortizable intangible assets, Accumulated Amortization	(20,777)	(17,680)
Amortizable intangible assets, Net Carrying Value	$ 171,202	$ 174,299