Securitizations Net - Summary of Outstanding Balance Net of Discounts and Deals Costs of Securities and Effective Interest Rate (Details) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Dec. 31, 2021
Debt Instrument [Line Items]
Securitizations, net	$ 2,651,895	$ 1,623,674	$ 1,911,879
Average outstanding balance	$ 2,331,672	$ 1,574,999
Effective interest rate	4.30%	4.68%
Securitizations
Debt Instrument [Line Items]
Interest expense - portfolio related	$ 75,191	$ 55,288