Liability for Losses Under Representations and Warranties (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023
During the period:
Balance at beginning of period	$ 28,688	$ 30,146	$ 30,788	$ 32,421
Provision for losses on loans sold resulting from sales of loans	4,070	4,011	12,151	8,885
Provision for losses on loans sold resulting from change in estimate	(3,481)	(2,552)	(10,877)	(6,005)
Losses incurred	(991)	(1,114)	(3,776)	(4,810)
Balance at end of period	28,286	30,491	28,286	30,491
Unpaid principal balance of loans subject to representations and warranties at end of period	$ 396,102,491	$ 335,044,546	$ 396,102,491	$ 335,044,546