Debt Financing - Consolidated Debt (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
Debt Instrument [Line Items]
Total debt financing	$ 17,204,019	$ 16,696,081
Less: Debt discounts and issuance costs	(181,539)	(177,743)
Debt financing, net of discounts and issuance costs	17,022,480	16,518,338
Total unsecured debt financing
Debt Instrument [Line Items]
Total debt financing	17,059,058	16,395,094
Senior notes
Debt Instrument [Line Items]
Total debt financing	16,892,058	15,583,544
Term financings
Debt Instrument [Line Items]
Total debt financing	167,000	811,550
Total secured debt financing
Debt Instrument [Line Items]
Total debt financing	144,961	300,987
Term financings
Debt Instrument [Line Items]
Total debt financing	126,660	276,032
Export credit financing
Debt Instrument [Line Items]
Total debt financing	$ 18,301	$ 24,955