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Mortgage Servicing Rights Summary of Changes in Mortgage Servicing Rights (Details) - USD ($)
 12 Months Ended
Dec. 31, 2022
Dec. 31, 2021
Dec. 31, 2020
Servicing Asset [Abstract]      
Estimated fair value of MSRs $ 50,000,000 $ 35,400,000  
Residential mortgage      
Amortized Cost:      
Balance at beginning of period 35,993,000 38,745,000 $ 39,267,000
Originations of MSRs 4,067,000 9,216,000 12,173,000
Amortization (5,843,000) (11,968,000) (12,695,000)
Balance at end of period 34,217,000 35,993,000 38,745,000
Servicing Asset [Abstract]      
Beginning balance (600,000) (10,500,000) 0
Reduction (addition) to valuation allowance 600,000 9,900,000 (10,500,000)
Ending balance 0 (600,000) (10,500,000)
Net MSRs at end of year 34,217,000 35,393,000 28,245,000
Estimated fair value of MSRs $ 50,044,000 $ 35,393,000 $ 28,245,000