Variable Interest Entities - Narrative (Details) - USD ($)	Dec. 31, 2022	Dec. 31, 2021
Variable Interest Entity [Line Items]
Risk retention requirement declines	$ 0
Loans (at fair value)	1,010,421,000	$ 252,477,000
Notes receivable and residual certificates	6,181,000	8,288,000
Restricted cash	110,056,000	204,633,000
Fair Value, Inputs, Level 3
Variable Interest Entity [Line Items]
Notes receivable and residual certificates	6,181,000	8,288,000
Variable Interest Entity, Not Primary Beneficiary
Variable Interest Entity [Line Items]
Restricted cash	$ 7,100,000	7,200,000
Variable Interest Entity, Not Primary Beneficiary | Notes receivable and residual certificates (at fair value)
Variable Interest Entity [Line Items]
Loans (at fair value)		$ 8,300,000