Debt - Summary of Debt Instruments (Detail) - USD ($)			12 Months Ended
		Oct. 24, 2014	Dec. 31, 2018		Dec. 31, 2017	Dec. 31, 2016	Aug. 30, 2018	Jan. 20, 2017
Debt Instrument [Line Items]
Other debt			$ 37,902,000		$ 43,736,000
Total notes payable and other obligations			3,933,047,000		3,707,616,000
Securitization facility			886,000,000	[1]	811,000,000
Total notes payable, credit agreements and Securitization Facility			4,819,047,000		4,518,616,000
Current portion			2,070,616,000		1,616,512,000
Long-term portion			$ 2,748,431,000	[1]	2,902,104,000
Line of credit facility, unused capacity, commitment fee percentage			0.30%
Principal payments on notes payable	[2]		$ (498,305,000)		$ (423,156,000)	$ (118,500,000)
Securitization Facility
Debt Instrument [Line Items]
Line of credit facility							$ 1,200,000,000
Line of credit facility, unused capacity, commitment fee percentage			0.40%		0.40%
Unamortized debt issuance costs			$ 1,300,000
Description of variable rate basis			one month LIBOR
Secured Debt
Debt Instrument [Line Items]
Line of credit facility additional available borrowing capacity		$ 750,000,000
Secured Debt | Minimum
Debt Instrument [Line Items]
Line of credit facility, unused capacity, commitment fee percentage		0.20%
Secured Debt | Minimum | Federal Funds Rate Plus
Debt Instrument [Line Items]
Debt instrument, basis spread on variable rate		0.50%
Secured Debt | Maximum
Debt Instrument [Line Items]
Line of credit facility, unused capacity, commitment fee percentage		0.40%
Secured Debt | Maximum | Eurodollar
Debt Instrument [Line Items]
Debt instrument, basis spread on variable rate		1.00%
Revolving Credit Facility
Debt Instrument [Line Items]
Unamortized debt issuance costs			$ 8,300,000
Capitalized debt issuance costs			900,000
Revolving Credit Facility | Secured Debt
Debt Instrument [Line Items]
Line of credit facility			1,285,000,000
Term Loan A
Debt Instrument [Line Items]
Term notes payable-domestic, net of discounts			$ 2,515,519,000		$ 2,646,255,000
Debt instrument, maturity date			Dec. 19, 2023
Unamortized discount			$ 9,500,000
Term Loan A | Secured Debt
Debt Instrument [Line Items]
Line of credit facility			2,530,000,000
Term Loan B
Debt Instrument [Line Items]
Term notes payable-domestic, net of discounts			$ 344,180,000		347,412,000
Debt instrument, maturity date			Aug. 02, 2024
Line of credit facility, interest rate during period			4.52%
Unamortized discount			$ 600,000
Term Loan B | Secured Debt
Debt Instrument [Line Items]
Line of credit facility			350,000,000
Term Loan B | Secured Debt | Eurodollar
Debt Instrument [Line Items]
Interest rate, stated percentage								2.00%
Term Loan B | Secured Debt | Base Rate
Debt Instrument [Line Items]
Interest rate, stated percentage								1.00%
Revolving Line of Credit A Facility
Debt Instrument [Line Items]
Revolving line of credit			655,000,000		635,000,000
Revolving Line of Credit A Facility | Secured Debt
Debt Instrument [Line Items]
Line of credit facility			800,000,000
Revolving B Credit Facility
Debt Instrument [Line Items]
Revolving line of credit			345,446,000		28,334,000
Revolving B Credit Facility | Secured Debt
Debt Instrument [Line Items]
Line of credit facility			450,000,000
Revolving C Credit Facility
Debt Instrument [Line Items]
Revolving line of credit			$ 35,000,000		0
Line of credit facility, interest rate during period			4.00%
Revolving C Credit Facility | Secured Debt
Debt Instrument [Line Items]
Line of credit facility			$ 35,000,000
Swing Line
Debt Instrument [Line Items]
Revolving line of credit			$ 0		$ 6,879,000
Foreign Revolving Line of Credit Facility A
Debt Instrument [Line Items]
Line of credit facility, interest rate during period			2.23%
Foreign Revolving Line of Credit Facility A | US Dollar Borrowings
Debt Instrument [Line Items]
Revolving line of credit			$ 220,000,000
Line of credit facility, interest rate during period			4.02%
Foreign Revolving Line of Credit Facility A | GBP Borrowings
Debt Instrument [Line Items]
Revolving line of credit			$ 125,000,000
Line of credit facility, interest rate during period			3.97%
Foreign Swing Line
Debt Instrument [Line Items]
Interest rate, effective percentage			2.15%		2.69%
Term Loan
Debt Instrument [Line Items]
Principal payments on notes payable			$ (498,300,000)
Capitalized debt issuance costs			$ 10,900,000		$ 11,800,000
Commercial Paper | Securitization Facility
Debt Instrument [Line Items]
Debt instrument, basis spread on variable rate			0.80%
Commercial Paper | Securitization Facility | London Interbank Offered Rate (LIBOR)
Debt Instrument [Line Items]
Debt instrument, basis spread on variable rate			0.90%
Commercial Paper | Securitization Facility | Blended Rate Of LIBOR And Commercial Paper Rates Based On Weighted Average Advance
Debt Instrument [Line Items]
Debt instrument, basis spread on variable rate			0.89%		0.86%
Line of credit facility, commitment fee percentage			2.52%		1.55%
Period One | Revolving Credit Facility
Debt Instrument [Line Items]
Payment period			1 month
Period One | Foreign Swing Line
Debt Instrument [Line Items]
Payment period			10 days
Period Two | Revolving Credit Facility
Debt Instrument [Line Items]
Payment period			2 months
Period Three | Revolving Credit Facility
Debt Instrument [Line Items]
Payment period			3 months
Period Four | Revolving Credit Facility
Debt Instrument [Line Items]
Payment period			6 months

[1] Reflects the impact of the Company's adoption of ASC 606 and related cost capitalization guidance, which was adopted by the Company on January 1, 2018 using the modified retrospective transition method. The adoption of ASC 606 resulted in an adjustment to retained earnings in our consolidated balance sheet for the cumulative effect of applying the standard, which included costs incurred to obtain a contract, as well as presentation changes in our statements of income, including the classification of certain amounts previously classified as merchant commissions and processing expense net with revenues. As a result of the application of the modified retrospective transition method, the Company's prior period results within its Form 10-K and quarterly reports on Form 10-Q will not be restated to reflect ASC 606.

[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 statement of cash flows.