Mortgage Servicing Rights - Mortgage Servicing Rights at Fair Value (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022
Servicing Asset at Fair Value, Amount [Roll Forward]
Balance, beginning of period	$ 73,424	$ 60,481	$ 74,097	$ 47,392
Servicing resulting from transfers of financial assets	2,897	3,668	4,944	8,192
Changes in fair value:
Due to changes in valuation inputs or assumptions used in the valuation model	3,846	4,049	2,678	14,872
Changes in fair value due to pay-offs, pay-downs, and runoff	(1,777)	(2,151)	(3,329)	(4,409)
Balance, end of period	$ 78,390	$ 66,047	$ 78,390	$ 66,047