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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 9 Months Ended
Sep. 30, 2025
Sep. 30, 2024
Sep. 30, 2025
Sep. 30, 2024
Mortgage Servicing Rights Accounted for Under the Amortization Method (Rollforward)        
Balance at Beginning of Period $ 17,743 $ 19,286 $ 18,552 $ 20,201
Servicing Rights that Resulted From Asset Transfers 52 157 231 316
Amortization (479) (532) (1,467) (1,606)
Balance at End of Period 17,316 18,911 17,316 18,911
Fair Value of Mortgage Servicing Rights Accounted for Under the Amortization Method        
Beginning of Period 24,218 25,326 24,989 26,173
End of Period $ 23,872 $ 25,265 $ 23,872 $ 25,265