Other Assets - Other (Details) - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 31, 2021
Carrying value:
Capitalized software, net	$ 157,460	$ 109,480
Derivative settlements receivable	1,522	20,026
Prepaid Expense	38,780	64,924
Servicing fee receivables, net	31,356	23,672
Furniture, fixtures, equipment and building improvements, net	28,382	31,677
Other servicing receivables	24,854	113,820
Interest receivable	24,110	9,688
Deposits	12,277	36,632
Real estate acquired in settlement of loans	11,497	7,474
Margin deposits	55,968	100,482
Other	31,701	98,741
Other assets	417,907	616,616
Asset Pledged as Collateral without Right
Carrying value:
Other assets	12,277	45,294
Asset Pledged as Collateral without Right | Deposits.
Carrying value:
Other assets	$ 12,277	36,632
Asset Pledged as Collateral without Right | Capitalized software
Carrying value:
Other assets		4,546
Asset Pledged as Collateral without Right | Furniture, fixtures and equipment
Carrying value:
Other assets		$ 4,116