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Pension Plan - Defined Benefit Plan Activity (Details) - Pension Plan - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2023
Dec. 31, 2022
Dec. 31, 2021
Change in benefit obligation      
Benefit obligation at beginning of year $ 8,829 $ 12,230  
Interest cost 450 341 $ 313
Actuarial loss 97 160  
Assumption changes 251 (3,584)  
Benefits paid (341) (318)  
Benefit obligation at end of year 9,286 8,829 12,230
Change in plan assets:      
Fair value of plan assets at beginning of year 9,283 11,591  
Actual return gain (loss) on plan assets 1,064 (1,990)  
Benefits paid (341) (318)  
Fair value of plan assets at end of year 10,006 9,283 $ 11,591
Funded status 720 454  
Unrecognized net actuarial loss 3,943 4,120  
Prepaid pension cost recognized 4,663 4,574  
Accumulated benefit obligation $ 9,286 $ 8,829