Amount, before unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but is not limited to, notes payable, bonds payable, commercial loans, mortgage loans, convertible debt, subordinated debt and other types of debt.

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Borrowings - Components of Long-Term Debt (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	May 27, 2020	Nov. 20, 2017
Line of Credit Facility [Line Items]
Long-term debt, Gross	$ 2,498,000	$ 1,923,000
Less: Unamortized debt issuance costs	(19,612)	(14,057)
Net carrying amount	2,478,388	1,908,943
Current portion of borrowings	(100,500)	(50,000)
Long-term borrowings	2,377,888	1,858,943
Revolving Credit Facility
Line of Credit Facility [Line Items]
Long-term line of credit	$ 350,000	$ 300,000
Senior credit facility interest rate	1.66%	3.12%
Securitization Program
Line of Credit Facility [Line Items]
Long-term line of credit	$ 75,000	$ 50,000
Securitization program, at a rate of 1.24% at December 31, 2020 and 2.51% at December 31, 2019	$ 75,000	$ 50,000
Interest rate	1.24%	2.51%
Term loan facility, at a rate of 1.65% at December 31, 2020 and 3.17% at December 31 2019, due 2024 \| Term Loan
Line of Credit Facility [Line Items]
Long-term line of credit	$ 673,000	$ 673,000
Senior credit facility interest rate	1.65%	3.17%
4.875% Senior Notes due 2026 \| Senior Notes
Line of Credit Facility [Line Items]
Senior notes	$ 400,000	$ 400,000
Interest rate	4.875%	4.875%
4.625% Senior Notes due 2027 \| Senior Notes
Line of Credit Facility [Line Items]
Senior notes	$ 500,000	$ 500,000		$ 500,000
Interest rate	4.625%	4.625%		4.625%
4.25% Senior Notes due 2028 \| Senior Notes
Line of Credit Facility [Line Items]
Senior notes	$ 500,000	$ 0	$ 500,000
Interest rate	4.25%	4.25%	4.25%