Segments - Schedule of Company's Segment Results (Detail) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2016	Jun. 30, 2015
Segment Reporting Information [Line Items]
Revenues, net	$ 417,905	$ 404,605	$ 832,167	$ 820,771
Operating income	171,168	169,151	347,123	332,925
Depreciation and amortization	48,436	48,827	84,764	96,909
Capital expenditures	13,018	8,129	24,757	16,234
Operating Segments [Member] | North American Segment [Member]
Segment Reporting Information [Line Items]
Revenues, net	301,126	284,576	604,674	583,389
Operating income	117,611	109,584	231,461	219,350
Depreciation and amortization	32,180	32,021	63,612	63,943
Capital expenditures	8,579	3,793	16,521	8,017
Operating Segments [Member] | International Segment [Member]
Segment Reporting Information [Line Items]
Revenues, net	116,779	120,029	227,493	237,382
Operating income	53,557	59,567	115,662	113,575
Depreciation and amortization	16,256	16,806	21,152	32,966
Capital expenditures	$ 4,439	$ 4,336	$ 8,236	$ 8,217