Annual report pursuant to Section 13 and 15(d)

Benefit Plans - Change in Benefit Obligation and Plan Assets (Details)

v3.24.0.1
Benefit Plans - Change in Benefit Obligation and Plan Assets (Details) - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2023
Dec. 31, 2022
Dec. 31, 2021
Defined Benefit Pension Plans      
Change in benefit obligation:      
Benefit obligation at beginning of period $ 66,879 $ 86,465  
Interest cost 3,453 2,569  
Plan settlements (2,543) (862)  
Benefits paid (2,798) (2,552)  
Actuarial losses/(gains) 1,565 (18,741)  
Benefit obligation at end of the period 66,556 66,879 $ 86,465
Changes in actuarial (gains) losses due to discount rates 1,365 (18,641)  
Actuarial gain (loss), general experience 200 (100)  
Change in plan assets:      
Fair value of plan assets at beginning of period 60,629 82,914  
Actual return on plan assets 6,330 (18,871)  
Plan settlements (2,543) (862)  
Benefits paid (2,798) (2,552)  
Fair value of plan assets at end of the period 61,618 60,629 82,914
Funded status of the plans (underfunded) (4,938) (6,250)  
Underfunded and Unfunded Plans      
Change in plan assets:      
Funded status of the plans (underfunded) 4,938 6,250  
Other Postretirement Benefits Plans      
Change in benefit obligation:      
Benefit obligation at beginning of period 446 624  
Interest cost 24 18 17
Benefits paid (1) (1)  
Premiums paid (3) (3)  
Actuarial losses/(gains) 9 (192)  
Benefit obligation at end of the period 475 446 $ 624
Changes in actuarial (gains) losses due to discount rates 9    
Change in plan assets:      
Employer contributions 4 4  
Fair value of plan assets at beginning of period 0    
Benefits paid (1) (1)  
Premiums paid (3) (3)  
Fair value of plan assets at end of the period 0 0  
Funded status of the plans (underfunded) $ (475) $ (446)