Goodwill and Other Intangible Assets - Schedule of Other Intangible Assets (Detail) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2015	Dec. 31, 2014
Finite And Indefinite Lived Intangible Assets [Line Items]
Gross Carrying Amounts	$ 2,653,336	$ 2,672,369
Accumulated Amortization	(315,188)	(235,002)
Net Carrying Amount	2,338,148	2,437,367
Trade Names And Trademarks Indefinite Lived [Member]
Finite And Indefinite Lived Intangible Assets [Line Items]
Gross Carrying Amounts	335,149	337,467
Net Carrying Amount	$ 335,149	337,467
Customer and Vendor Agreements [Member]
Finite And Indefinite Lived Intangible Assets [Line Items]
Useful Lives (Years)	18 years 4 months 24 days
Gross Carrying Amounts	$ 2,124,658	2,139,339
Accumulated Amortization	(267,629)	(205,365)
Net Carrying Amount	$ 1,857,029	1,933,974
Trade Names and Trademarks [Member]
Finite And Indefinite Lived Intangible Assets [Line Items]
Useful Lives (Years)	14 years 6 months
Gross Carrying Amounts	$ 3,314	3,332
Accumulated Amortization	(1,953)	(1,847)
Net Carrying Amount	$ 1,361	1,485
Software [Member]
Finite And Indefinite Lived Intangible Assets [Line Items]
Useful Lives (Years)	5 years 1 month 6 days
Gross Carrying Amounts	$ 173,602	174,507
Accumulated Amortization	(37,914)	(21,511)
Net Carrying Amount	$ 135,688	152,996
Non-compete [Member]
Finite And Indefinite Lived Intangible Assets [Line Items]
Useful Lives (Years)	5 years 7 months 6 days
Gross Carrying Amounts	$ 16,613	17,724
Accumulated Amortization	(7,692)	(6,279)
Net Carrying Amount	$ 8,921	$ 11,445