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Benefit Plans, Change in Projected Benefit Obligation, Plan Assets and Funded Status Reconciliation (Details)
$ in Thousands
12 Months Ended
Dec. 31, 2023
USD ($)
h
yr
Dec. 31, 2022
USD ($)
Dec. 31, 2021
USD ($)
Change in plan assets and reconciliation of funded status [Roll Forward]      
Company contributions $ 0 $ 0  
Retirement Plan [Member]      
Defined benefit plan [Abstract]      
Requisite minimum period of employment 1 year    
Requisite minimum hours of service | h 1,000    
Number of consecutive years in highest compensation preceding retirement | yr 5    
Period preceding retirement considered in calculating benefits 10 years    
Change in benefit obligation [Roll Forward]      
Accumulated benefit obligation at beginning of year $ 23,042 30,905  
Interest cost 1,213 888 $ 856
Benefit payments and expected expenses (1,741) (1,823)  
Net actuarial loss (gain) 645 (6,928)  
Accumulated benefit obligation at end of year 23,159 23,042 30,905
Change in plan assets and reconciliation of funded status [Roll Forward]      
Fair Value of plan assets at beginning of year 52,673 63,066  
Actual gain (loss) on plan assets 8,747 (8,532)  
Benefit payments and actual expenses (1,779) (1,861)  
Fair value of plan assets at end of year 59,641 52,673 63,066
Funded status at end of year 36,482 29,631  
Postretirement Benefits [Member]      
Change in benefit obligation [Roll Forward]      
Accumulated benefit obligation at beginning of year 4,893 7,016  
Interest cost 271 207 190
Net actuarial loss (gain) 527 (2,276)  
Accumulated benefit obligation at end of year 5,628 4,893 7,016
Change in plan assets and reconciliation of funded status [Roll Forward]      
Fair Value of plan assets at beginning of year 28,988 33,344  
Actual gain (loss) on plan assets 4,260 (4,341)  
Company contributions 50 57  
Benefits paid and actual expenses (74) (72)  
Fair value of plan assets at end of year 33,224 28,988 $ 33,344
Funded status at end of year $ 27,596 $ 24,095