Debt Items (Details) - USD ($) $ in Thousands	Mar. 31, 2020	Dec. 31, 2019
Debt Instrument [Line Items]
Debt outstanding	$ 6,789,089	$ 6,684,162
Deferred financing costs	36,883	39,781
Unamortized purchase price debt adjustments	3,785	4,065
Unamortized debt premiums & discounts	7,581	8,791
Debt, net of unamortized debt costs	$ 6,740,840	6,631,525
Institutional notes
Debt Instrument [Line Items]
Debt instrument, interest rate, effective percentage	4.68%
Debt outstanding	$ 1,926,614	1,957,557
Asset-backed securitization term notes
Debt Instrument [Line Items]
Debt instrument, interest rate, effective percentage	3.45%
Debt outstanding	$ 2,623,676	2,719,206
Term loan facilities
Debt Instrument [Line Items]
Debt instrument, interest rate, effective percentage	2.47%
Debt outstanding	$ 1,172,375	1,200,375
Asset-backed securitization warehouse
Debt Instrument [Line Items]
Debt instrument, interest rate, effective percentage	2.59%
Debt outstanding	$ 270,000	370,000
Revolving credit facilities
Debt Instrument [Line Items]
Debt instrument, interest rate, effective percentage	2.47%
Debt outstanding	$ 777,500	410,000
Capital lease obligations
Debt Instrument [Line Items]
Debt instrument, interest rate, effective percentage	4.93%
Debt outstanding	$ 18,924	27,024
Level 2
Debt Instrument [Line Items]
Debt outstanding	$ 6,458,900	$ 6,747,800

Adjustment to Purchase Price of Debt

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Debt and Capital Lease Obligations, net of deferred financing costs

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Amount of short-term and long-term debt and lease obligation.

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Effective interest rate for the funds borrowed under the debt agreement considering interest compounding and original issue discount or premium.

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Amount, after accumulated amortization, of debt discount (premium).

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Amount, after accumulated amortization, of debt issuance costs. Includes, but is not limited to, legal, accounting, underwriting, printing, and registration costs.

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