Segments - Schedule of Company's Segment Results (Detail) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2018		Mar. 31, 2017
Segment Reporting Information [Line Items]
Revenues, net	$ 585,500		$ 520,433
Operating income	260,087	[1]	195,068
Depreciation and amortization	71,502	[1]	64,866
Capital expenditures	15,214	[2]	14,796
North America
Segment Reporting Information [Line Items]
Revenues, net	364,270		329,948
Operating income	155,950		120,972
Depreciation and amortization	38,675		33,177
Capital expenditures	8,411		9,632
International
Segment Reporting Information [Line Items]
Revenues, net	221,230		190,485
Operating income	104,137		74,096
Depreciation and amortization	32,827		31,689
Capital expenditures	$ 6,803		$ 5,164

[1] Reflects the January 1, 2018 adoption of Accounting Standards Update 2014-09, "Revenue from Contracts with Customers (Topic 606)" using the modified retrospective transition method. As a result of the application of the modified retrospective transition method, the Company's prior period results within its annual report on Form 10-K and quarterly reports on Form 10-Q will not be restated to reflect the impact of Topic 606. See footnote 1.

[2] Reflects the impact of the Company's adoption of Accounting Standards Update 2016-18, Statement of Cash Flows (Topic 230), which was adopted by the Company on January 1, 2018 and applied retrospectively to results for 2017. The adoption of Topic 230 resulted in the statement of cash flows presenting the changes in the total of cash, cash equivalents and restricted cash. As a result, the Company will no longer present transfers between cash and cash equivalents and restricted cash in the consolidated statement of cash flows.