Debt - Key Term and Carrying Value (Details) - USD ($) $ in Thousands	Sep. 30, 2020	Dec. 31, 2019
Debt Instrument [Line Items]
Debt outstanding	$ 6,469,935	$ 6,684,162
Deferred financing costs	41,741	39,781
Unamortized purchase price debt adjustments	630	4,065
Unamortized debt premiums & discounts	(1,870)	8,791
Debt, net of unamortized debt costs	$ 6,429,434	6,631,525
Institutional notes
Debt Instrument [Line Items]
Debt instrument, interest rate, effective percentage	4.57%
Debt outstanding	$ 1,694,171	1,957,557
Asset-backed securitization term notes
Debt Instrument [Line Items]
Debt instrument, interest rate, effective percentage	2.07%
Debt outstanding	$ 2,986,912	2,719,206
Term loan facility
Debt Instrument [Line Items]
Debt instrument, interest rate, effective percentage	1.65%
Debt outstanding	$ 860,000	1,200,375
Asset-backed securitization warehouse
Debt Instrument [Line Items]
Debt instrument, interest rate, effective percentage	1.91%
Debt outstanding	$ 195,000	370,000
Revolving credit facilities
Debt Instrument [Line Items]
Debt instrument, interest rate, effective percentage	1.75%
Debt outstanding	$ 716,000	410,000
Capital lease obligations
Debt Instrument [Line Items]
Debt instrument, interest rate, effective percentage	4.93%
Debt outstanding	$ 17,852	27,024
Level 2
Debt Instrument [Line Items]
Debt outstanding	$ 6,563,300	$ 6,747,800

Adjustment to Purchase Price of Debt

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- Definition

Debt and Capital Lease Obligations, net of deferred financing costs

+ References

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- Definition

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

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- Definition

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

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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

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- Definition

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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