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SERP Benefits Table (Details) - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2022
Dec. 31, 2021
Dec. 31, 2020
Change in plan assets      
Fair value of plan assets at beginning of year $ 20,300    
Fair value of plan assets at end of year 18,600 $ 20,300  
Supplemental Executive Retirement Plans [Member]      
Defined Benefit Plan, Change in Benefit Obligation [Roll Forward]      
Benefit obligation at beginning of year 19,498 20,752 $ 17,361
Service cost 561 574 505
Interest cost 492 424 518
Defined Benefit Plan, Benefit Obligation, Actuarial Gain (Loss) (4,365) (1,777) 2,843
Accumulated benefit obligation at end of year 15,711 19,498 20,752
Defined Benefit Plan, Benefit Obligation, Benefits Paid (475) (475) (475)
Change in plan assets      
Employer contribution 475 475 475
Defined Benefit Plan, Plan Assets, Benefits Paid (475) (475) (475)
Funded status at end of year (15,711) (19,498) (20,752)
Assets for Plan Benefits, Defined Benefit Plan 0 0 0
Liabilities (15,711) (19,498) (20,752)
Funded status at end of year (15,711) (19,498) (20,752)
Accumulated Other Comprehensive (Income) Loss, Defined Benefit Plan, after Tax [Abstract]      
Defined Benefit Plan, Accumulated Other Comprehensive Income (Loss), Gain (Loss), before Tax (1,970) 3,002 5,881
Defined Benefit Plan, Accumulated Other Comprehensive (Income) Loss, Prior Service Cost (Credit), before Tax 22 43 218
Defined Benefit Plan, Accumulated Other Comprehensive (Income) Loss, before Tax (1,948) 3,045 6,099
Information for plans with an accumulated benefit obligation in excess of plan assets      
Projected benefit obligation 15,711 19,498 20,752
Defined Benefit Plan, Plan with Accumulated Benefit Obligation in Excess of Plan Assets, Accumulated Benefit Obligation 15,711 19,498 20,752
Net periodic benefit cost      
Service cost 561 574 505
Interest cost 492 424 518
Defined Benefit Plan, Amortization of Prior Service Cost (Credit) 22 174 276
Recognized net actuarial loss 606 1,103 471
Defined Benefit Plan, Net Periodic Benefit Cost (Credit) $ 1,681 $ 2,275 $ 1,770
Minimum [Member] | Supplemental Executive Retirement Plans [Member]      
Defined Benefit Plan Disclosure [Line Items]      
Defined Benefit Plan, Assumptions Used Calculating Benefit Obligation, Discount Rate 4.67% 1.28% 0.43%
Defined Benefit Plan, Expected Amortization, Next Fiscal Year [Abstract]      
Defined Benefit Plan, Assumptions Used Calculating Net Periodic Benefit Cost, Discount Rate 1.28% 0.43% 2.00%
Maximum [Member] | Supplemental Executive Retirement Plans [Member]      
Defined Benefit Plan Disclosure [Line Items]      
Defined Benefit Plan, Assumptions Used Calculating Benefit Obligation, Discount Rate 4.93% 2.57% 2.18%
Defined Benefit Plan, Expected Amortization, Next Fiscal Year [Abstract]      
Defined Benefit Plan, Assumptions Used Calculating Net Periodic Benefit Cost, Discount Rate 2.57% 2.18% 3.04%