Loans Held for Sale, at Fair Value - Fair Value Adjustments on Loans Held for Sale (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Accounts and Financing Receivables, Held-for-Sale, Not Part of Disposal Group, after Valuation Allowance [Abstract]
Interest income on loans held for sale	$ 4,944	$ 4,981
Gains (loss) recognized on change in fair value on loans held for sale	$ 965	$ 4,035