Liability for Losses Under Representations and Warranties (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
During the period:
Balance at beginning of quarter	$ 30,788	$ 32,421
Provision for losses on loans sold resulting from sales of loans	3,952	1,735
Provision for losses on loans sold resulting from change in estimate	(3,320)	(1,445)
Losses incurred, net	(1,444)	(1,608)
Balance at end of quarter	29,976	31,103
Unpaid principal balance of loans subject to representations and warranties at end of quarter	$ 366,147,661	$ 303,983,805