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Derivative Financial Instruments - Carrying Amount and Adjustment (Details) - USD ($)
$ in Thousands
 1 Months Ended 3 Months Ended 6 Months Ended 9 Months Ended
Mar. 31, 2021
Jun. 30, 2020
Sep. 30, 2023
Sep. 30, 2022
Jun. 30, 2023
Sep. 30, 2023
Sep. 30, 2022
Dec. 31, 2022
Dec. 31, 2021
Derivative Instruments and Hedging Activities Disclosures [Line Items]                  
Amortized cost     $ 507,632     $ 507,632   $ 436,183  
Payments for swap termination payments   $ 46,100              
Cash pledged as collateral     9,400     9,400     $ 7,700
Derivatives designated as hedging instruments                  
Derivative Instruments and Hedging Activities Disclosures [Line Items]                  
Carrying amount of the hedged assets     69,041     69,041   $ 68,963  
Cumulative amount of fair value hedging adjustment included in the carrying amount of the hedged assets         $ (2,088) (1,707)      
Amortized cost     50,000     50,000      
Securities available-for-sale | Derivatives designated as hedging instruments | Interest rate swaps                  
Derivative Instruments and Hedging Activities Disclosures [Line Items]                  
Payments for swap termination payments $ 1,900                
Amortization Expense     100 $ 100   100 $ 200    
Loans | Derivatives designated as hedging instruments | Interest rate swaps                  
Derivative Instruments and Hedging Activities Disclosures [Line Items]                  
Amortization Expense     $ 1,500 $ 1,500   $ 3,500 $ 3,600