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Loans and Allowance for Credit Losses - Loans Pledged (Details) - USD ($)
$ in Thousands
Sep. 30, 2023
Dec. 31, 2022
Financing Receivable, Allowance for Credit Loss [Line Items]    
Accrued interest on loans $ 7,100 $ 6,400
Net loans 1,534,507 $ 1,505,664
Asset Pledged as Collateral without Right | Federal Home Loan Bank Advances    
Financing Receivable, Allowance for Credit Loss [Line Items]    
Net loans $ 719,900