Debt Financing - Consolidated Debt (Details) - USD ($) $ in Thousands	Mar. 31, 2022	Dec. 31, 2021
Debt Instrument [Line Items]
Total debt financing	$ 18,030,441	$ 17,204,019
Less: Debt discounts and issuance costs	(205,716)	(181,539)
Debt financing, net of discounts and issuance costs	17,824,725	17,022,480
Total unsecured debt financing
Debt Instrument [Line Items]
Total debt financing	17,890,352	17,059,058
Senior notes
Debt Instrument [Line Items]
Total debt financing	17,695,077	16,892,058
Term financings
Debt Instrument [Line Items]
Total debt financing	195,275	167,000
Total secured debt financing
Debt Instrument [Line Items]
Total debt financing	140,089	144,961
Term financings
Debt Instrument [Line Items]
Total debt financing	123,452	126,660
Export credit financing
Debt Instrument [Line Items]
Total debt financing	$ 16,637	$ 18,301