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Benefit Plans - Pension Expense (Details) - USD ($)
$ in Thousands
 12 Months Ended 24 Months Ended
Dec. 31, 2022
Dec. 31, 2021
Dec. 31, 2022
Components of net periodic benefit cost      
Service cost $ 519 $ 528  
Interest cost $ 274 239  
Defined Benefit Plan, Net Periodic Benefit Cost (Credit), Interest Cost, Statement of Income or Comprehensive Income [Extensible Enumeration] Noninterest Income, Other Operating Income    
Expected return on assets $ (575) (487)  
Defined Benefit Plan, Net Periodic Benefit (Cost) Credit, Expected Return (Loss), Statement of Income or Comprehensive Income [Extensible Enumeration] Other Comprehensive Income Loss Change In funded Status Of Defined Benefit Plan Liability Net of Tax    
Defined Benefit Plan, Amortization of Prior Service Cost (Credit) $ (89) (89)  
Defined Benefit Plan Net Periodic Benefit Cost Credit Amortization Of Prior Service Cost Credit Statement Of Income Or Comprehensive Income Extensible List Not Disclosed Flag     true
Amortization of net loss $ 183 270  
Defined Benefit Plan, Net Periodic Benefit (Cost) Credit, Amortization of Gain (Loss), Statement of Income or Comprehensive Income [Extensible Enumeration] Other Comprehensive Income Loss Amortization Adjustment From AOCI Pension And Other Post retirement Benefit Plans of Net Prior Service Cost Credit Tax    
Pension expense $ 312 $ 461