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Mortgage Banking Activities, Components of Loans Held For Sale (Details) - USD ($)
$ in Thousands
3 Months Ended 9 Months Ended 12 Months Ended
Mar. 31, 2023
Sep. 30, 2023
Sep. 30, 2022
Dec. 31, 2022
Schedule of Residential Mortgage Loans Held For Sale [Line Items]        
Residential mortgage loans held for sale, nonperforming   $ 0   $ 0
Number of days for past due for loan to be considered nonperforming (in days)   90 days   90 days
Credit losses recognized on residential mortgage loans held for sale   $ 0 $ 0  
Components of Residential Mortgage Loans Held for Sale [Abstract]        
Unpaid principal balance   71,304   $ 74,941
Residential mortgage loans held for sale, Fair value   69,653   73,938
Residential mortgage loans held for sale   $ 72,489   75,272
Residential Mortgage Loan Commitments [Member] | Not Designated as Hedging Instrument [Member]        
Schedule of Residential Mortgage Loans Held For Sale [Line Items]        
General number of days outstanding for residential mortgage commitments, minimum (in days) 60 days 60 days    
General number of days outstanding for residential mortgage commitments, maximum (in days) 90 days 90 days    
Components of Residential Mortgage Loans Held for Sale [Abstract]        
Derivative, Notional Amount   $ 49,285   45,492
Derivative, Net fair value   $ 1,541   1,054
Forward sales contracts [Member] | Not Designated as Hedging Instrument [Member]        
Schedule of Residential Mortgage Loans Held For Sale [Line Items]        
General number of days for delivery of loans, for which the price is set by forward sales contracts, minimum (in days)   60 days    
General number of days for delivery for loans, for which the price is set by forward sales contracts, maximum (in days)   90 days    
Components of Residential Mortgage Loans Held for Sale [Abstract]        
Derivative, Notional Amount   $ 102,529   109,469
Derivative, Net fair value   $ 1,295   $ 280