Other Assets - Other (Details) - USD ($) $ in Thousands	Dec. 31, 2024	Dec. 31, 2023
Carrying value:
Margin deposits	$ 288,153	$ 135,645
Capitalized software, net	120,802	148,736
Interest receivable	41,286	35,196
Servicing fees receivable, net	38,676	37,271
Other servicing receivables	54,058	30,530
Prepaid expenses	45,762	36,044
Operating lease right-of-use assets	$ 36,572	$ 49,926
Operating Lease, Right-of-Use Asset, Statement of Financial Position [Extensible Enumeration]	Other assets	Other assets
Deposits securing Assets sold under agreements to repurchase and Notes payable secured by mortgage servicing assets	$ 16,697	$ 15,653
Real estate acquired in settlement of loans	14,976	14,982
Furniture, fixtures, equipment and building improvements, net	12,916	19,016
Other	100,183	59,461
Other assets	770,081	582,460
Asset Pledged as Collateral without Right
Carrying value:
Other assets	16,697	15,653
Asset Pledged as Collateral without Right | Deposits.
Carrying value:
Other assets	$ 16,697	$ 15,653