Goodwill and Other Intangibles and Servicing Rights - Mortgage Servicing Rights (Details) - USD ($) $ in Thousands	6 Months Ended	12 Months Ended
	Jun. 30, 2023	Dec. 31, 2022
Mortgage Servicing Rights
Mortgage servicing rights asset:
MSR asset at beginning of year	$ 13,080	$ 13,636
Capitalized MSR	620	2,327
Amortization during the period	(1,489)	(2,883)
MSR asset at end of period	12,211	13,080
Valuation Allowance:
Valuation allowance at beginning of year	(500)	(1,200)
Reversals	500	700
Valuation allowance at end of period	0	(500)
MSR asset, net	12,211	12,580
Fair value of MSR asset at end of period	16,200	17,215
Residential mortgage loans serviced for others	$ 1,615,985	$ 1,637,109
Net book value of MSR asset to loans serviced for others	0.76%	0.77%
LSR asset
Mortgage servicing rights asset:
MSR asset at beginning of year	$ 11,039	$ 20,055
Amortization during the period	(1,104)	(9,016)
MSR asset at end of period	9,935	11,039
Valuation Allowance:
Residential mortgage loans serviced for others	$ 512,766	$ 538,392