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Mortgage Servicing Rights - Narrative (Details) - USD ($)
$ in Thousands
Mar. 31, 2022
Dec. 31, 2021
Transfers and Servicing [Abstract]    
UPB of mortgage loans serviced $ 492,368,318 $ 485,087,214
Delinquent loans as a percentage of total portfolio (percent) 1.31%  
Delinquent loans as a percentage of total portfolio, excluding clients in forbearance plans (percent) 0.84%