Other Assets - Other (Details) - USD ($) $ in Thousands	Jun. 30, 2022	Dec. 31, 2021
Carrying value:
Capitalized software, net	$ 138,382	$ 109,480
Margin deposits	64,783	100,482
Prepaid Expense	46,486	64,924
Furniture, fixtures, equipment and building improvements, net	31,756	31,677
Deposits	25,547	36,632
Other servicing receivables	22,554	113,820
Servicing fee receivables, net	18,693	23,672
Interest receivable	10,828	9,688
Real estate acquired in settlement of loans	8,002	7,474
Other	101,050	118,767
Other assets	468,081	616,616
Assets pledged to secure Obligation under capital lease:
Capitalized software, net		4,546
Furniture, fixture, equipment and building improvements, net		4,116
Assets securing capital lease	$ 25,547	$ 45,294