Segments - Schedule of Company's Segment Results (Detail) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014
Segment Reporting Information [Line Items]
Revenues, net	$ 451,493	$ 295,283	$ 1,272,264	$ 822,693
Operating income	188,460	144,207	521,385	392,827
Depreciation and amortization	48,526	25,714	145,435	74,561
Capital expenditures	13,292	6,727	29,526	18,279
North America [Member]
Segment Reporting Information [Line Items]
Revenues, net	334,944	156,343	918,333	421,579
Operating income	132,428	78,797	351,778	203,311
Depreciation and amortization	32,257	6,635	96,200	19,647
Capital expenditures	6,493	1,561	14,510	5,397
International [Member]
Segment Reporting Information [Line Items]
Revenues, net	116,549	138,940	353,931	401,114
Operating income	56,032	65,410	169,607	189,516
Depreciation and amortization	16,269	19,079	49,235	54,914
Capital expenditures	$ 6,799	$ 5,166	$ 15,016	$ 12,882