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Mortgage Servicing Rights - Narrative (Details) - USD ($)
Mar. 31, 2022
Dec. 31, 2021
Mar. 31, 2021
Dec. 31, 2020
Servicing Asset at Amortized Cost [Line Items]        
Mortgage Loans Serviced By For Third Parties $ 4,300,000,000      
Fair value of MSRs 47,600,000 $ 35,400,000    
Residential Mortgage        
Servicing Asset at Amortized Cost [Line Items]        
Fair value of MSRs 47,609,000   $ 33,403,000  
Valuation Allowance for Impairment of Recognized Servicing Assets, Balance $ 0 $ 600,000 $ 4,400,000 $ 10,500,000