Segments - Schedule of Company's Segment Results (Detail) - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2017	Sep. 30, 2017	Jun. 30, 2017	Mar. 31, 2017	Dec. 31, 2016	Sep. 30, 2016	Jun. 30, 2016	Mar. 31, 2016	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Segment Reporting Information [Line Items]
Revenues, net	$ 609,991	$ 577,877	$ 541,237	$ 520,433	$ 514,953	$ 484,426	$ 417,905	$ 414,262	$ 2,249,538	$ 1,831,546	$ 1,702,865
Operating income:	240,012	$ 232,637	$ 216,043	$ 195,068	215,975	$ 191,055	$ 171,168	$ 175,955	883,760	754,153	667,534
Depreciation and amortization									264,560	203,256	193,453
Capital expenditures:									70,093	59,011	41,875
Long-lived assets (excluding goodwill):	3,020,209				2,867,689				3,020,209	2,867,689	2,322,580
North America
Segment Reporting Information [Line Items]
Revenues, net									1,428,711	1,279,102	1,231,957
Operating income:									541,598	506,414	442,052
Depreciation and amortization									139,418	129,653	127,863
Capital expenditures:									40,747	39,000	19,883
Long-lived assets (excluding goodwill):	1,888,599				1,664,224				1,888,599	1,664,224	1,719,639
International
Segment Reporting Information [Line Items]
Revenues, net									820,827	552,444	470,908
Operating income:									342,162	247,739	225,482
Depreciation and amortization									125,142	73,603	65,590
Capital expenditures:									29,346	20,011	21,992
Long-lived assets (excluding goodwill):	$ 1,131,610				$ 1,203,465				$ 1,131,610	$ 1,203,465	$ 602,941