Goodwill and Other Intangible Assets - Intangible Assets Other than Goodwill (Detail) (USD $) In Thousands, unless otherwise specified	Sep. 30, 2014	Dec. 31, 2013
Schedule Of Finite And Indefinite Lived Intangible Assets [Line Items]
Definite-lived intangible assets, Gross carrying amount	$ 202,210	$ 182,740
Definite-lived intangible assets, Accumulated amortization	(85,462)	(62,358)
Definite-lived intangible assets, net	116,748	120,382
Indefinite-lived intangible assets, Gross carrying amount	63,582	57,682
Indefinite-lived intangible assets, Accumulated amortization	0	0
Indefinite-lived intangible assets, net	63,582	57,682
Gross carrying amount, Total	265,792	240,422
Accumulated amortization, Total	(85,462)	(62,358)
Other intangible assets, net, Total	180,330	178,064
Trade Names
Schedule Of Finite And Indefinite Lived Intangible Assets [Line Items]
Indefinite-lived intangible assets, Gross carrying amount	63,399	57,499
Indefinite-lived intangible assets, Accumulated amortization	0	0
Indefinite-lived intangible assets, net	63,399	57,499
Other
Schedule Of Finite And Indefinite Lived Intangible Assets [Line Items]
Indefinite-lived intangible assets, Gross carrying amount	183	183
Indefinite-lived intangible assets, Accumulated amortization	0	0
Indefinite-lived intangible assets, net	183	183
Customer relationships
Schedule Of Finite And Indefinite Lived Intangible Assets [Line Items]
Definite-lived intangible assets, Gross carrying amount	132,500	132,500
Definite-lived intangible assets, Accumulated amortization	(44,491)	(27,740)
Definite-lived intangible assets, net	88,009	104,760
Technology
Schedule Of Finite And Indefinite Lived Intangible Assets [Line Items]
Definite-lived intangible assets, Gross carrying amount	44,805	43,535
Definite-lived intangible assets, Accumulated amortization	(33,698)	(27,951)
Definite-lived intangible assets, net	11,107	15,584
Media Content
Schedule Of Finite And Indefinite Lived Intangible Assets [Line Items]
Definite-lived intangible assets, Gross carrying amount	18,200	0
Definite-lived intangible assets, Accumulated amortization	(606)	0
Definite-lived intangible assets, net	17,594	0
Other
Schedule Of Finite And Indefinite Lived Intangible Assets [Line Items]
Definite-lived intangible assets, Gross carrying amount	6,705	6,705
Definite-lived intangible assets, Accumulated amortization	(6,667)	(6,667)
Definite-lived intangible assets, net	$ 38	$ 38