Changes in Intangible Assets Other Than Goodwill (Detail) (USD $) In Thousands, unless otherwise specified	6 Months Ended	12 Months Ended
	Jun. 30, 2014	Dec. 31, 2013
Indefinite-lived Intangible Assets [Roll Forward]
Indefinite-Lived Intangible Assets, Beginning Balance	$ 1,596,337	$ 1,602,373
Purchase price allocation adjustments	963
Indefinite- Lived, Acquisition		61,730
Indefinite-Lived, Disposition	(150)	(67,766)
Indefinite-Lived Intangible Assets, Ending Balance	1,597,150	1,596,337
Definite-Lived Intangible Assets, Beginning Balance	315,490	258,303
Definite-Lived, Purchase price allocation adjustments	0
Definite-Lived, Acquisition		152,522
Definite-Lived, Disposition		(8,627)
Definite-Lived Intangible Assets, Ending Balance	275,547	315,490
Intangible Assets Total, Beginning Balance	1,911,827	1,860,676
Total Acquisition		214,252
Total, Disposition	150	76,393
Amortization	(39,943)	(86,708)
Intangible Assets Total, Ending Balance	1,872,697	1,911,827
Adjusted acquired intangible assets
Indefinite-lived Intangible Assets [Roll Forward]
Definite-Lived Intangible Assets, Ending Balance		$ 315,490