Servicing Rights - Mortgage Servicing Rights (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022	Dec. 31, 2022
Changes in fair value:
Balance of mortgage loans serviced for others	$ 921,616		$ 921,616		$ 898,840
MSR as a percentage of serviced loans	1.98%		1.98%		2.07%
Mortgage servicing rights
Servicing Asset at Fair Value, Amount [Roll Forward]
Balance, beginning of period	$ 18,303	$ 15,422	$ 18,635	$ 13,724
Additions for new MSR capitalized	519	1,128	982	2,115
Changes in fair value:
Due to changes in model inputs of assumptions	(3)	(225)	(215)	967
Other	(571)	(24)	(1,154)	(505)
Balance, end of period	18,248	$ 16,301	18,248	$ 16,301
Balance of mortgage loans serviced for others	$ 921,616		$ 921,616		$ 898,840
MSR as a percentage of serviced loans	1.98%		1.98%		2.07%