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Mortgage Servicing Rights - Summary of Carrying Value Under the Amortization Method (Details) - Mortgage Servicing Rights - USD ($)
$ in Thousands
 3 Months Ended 6 Months Ended
Jun. 30, 2023
Jun. 30, 2022
Jun. 30, 2023
Jun. 30, 2022
Mortgage Servicing Rights Accounted for Under the Amortization Method (Rollforward)        
Balance at Beginning of Period $ 21,395 $ 23,187 $ 21,902 $ 21,451
Servicing Rights that Resulted From Asset Transfers 110 205 176 956
Amortization (574) (599) (1,147) (1,443)
Valuation Allowance Recovery (Provision)       1,829
Balance at End of Period 20,931 22,793 20,931 22,793
Valuation Allowance:        
Balance at Beginning of Period       (1,829)
Valuation Allowance Recovery (Provision)       1,829
Fair Value of Mortgage Servicing Rights Accounted for Under the Amortization Method        
Beginning of Period 26,456 26,088 27,323 21,451
End of Period $ 26,327 $ 28,314 $ 26,327 $ 28,314