Mortgage Servicing Rights Summary of Changes in Mortgage Servicing Rights (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Servicing Asset [Abstract]
Estimated fair value of MSRs	$ 49,700	$ 50,000
Residential mortgage
Amortized Cost:
Balance at beginning of period	34,217	35,993	$ 38,745
Originations of MSRs	2,475	4,067	9,216
Amortization	(5,090)	(5,843)	(11,968)
Balance at end of period	31,602	34,217	35,993
Servicing Asset [Abstract]
Beginning balance	0	(600)	(10,500)
Reduction (addition) to valuation allowance	0	600	9,900
Ending balance	0	0	(600)
Net MSRs at end of year	31,602	34,217	35,393
Estimated fair value of MSRs	$ 49,696	$ 50,044	$ 35,393