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Mortgage Servicing Rights - Summary of Carrying Value Under the Fair Value Measurement Method (Details) - Mortgage Servicing Rights - USD ($)
$ in Thousands
3 Months Ended 9 Months Ended
Sep. 30, 2023
Sep. 30, 2022
Sep. 30, 2023
Sep. 30, 2022
Servicing Assets At Fair Value [Line Items]        
Balance at Beginning of Period $ 695 $ 747 $ 717 $ 800
Change in Fair Value Due to Payoffs (10) (15) (32) (68)
Balance at End of Period $ 685 $ 732 $ 685 $ 732