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Employee Benefit Plans - Defined Benefit Plans - Projected Benefit Obligations, Plan Assets, Funded Status and Rate Assumptions (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2023
Dec. 31, 2022
Dec. 31, 2021
Change in benefit obligation      
Actuarial loss (gain) $ (527,000,000) $ 5,190  
Weighted-average assumptions for benefit obligation at valuation date      
Accumulated benefit obligation 16,810 15,270  
C&F Bank | Cash Balance Plan      
Change in benefit obligation      
Projected benefit obligation, beginning 15,267 20,247  
Service cost 1,377 1,837 $ 1,970
Interest cost 728 492 458
Actuarial loss (gain) (527) 5,190  
Benefits paid (1,087) (2,119)  
Projected benefit obligation, ending 16,812 15,267 20,247
Change in plan assets      
Fair value of plan assets, beginning 18,356 23,470  
Actual return on plan assets 2,319 (4,995)  
Employer contributions   2,000  
Benefits paid (1,087) (2,119)  
Fair value of plan assets, ending 19,588 18,356 23,470
Funded status 2,776 3,089  
Amounts recognized as an other asset 2,776 3,089  
Amounts recognized in accumulated other comprehensive loss      
Net loss 3,718 4,397  
Prior service credits (235) (302)  
Deferred taxes (731) (859)  
Total recognized in accumulated other comprehensive loss $ 2,752 $ 3,236  
Weighted-average assumptions for benefit obligation at valuation date      
Discount rate 4.70% 4.90%  
Rate of compensation increase 3.00% 3.00%  
Interest crediting rate 5.00% 5.00%  
Settlements paid     $ 5,370