v3.25.2
Retirement Plans (Details) - USD ($)
$ in Thousands
 3 Months Ended 6 Months Ended
Jun. 30, 2025
Jun. 30, 2024
Dec. 31, 2025
Jun. 30, 2025
Jun. 30, 2024
Retirement Plans [Abstract]          
Service period of participants not impacted by pension plan amendment       15 years  
Age of plan participants not impacted by pension plan amendment       50 years  
Service period of participants who are age fifty not impacted by pension plan amendment       10 years  
Higman [Member]          
Retirement Plans [Abstract]          
Pension contributions       $ 500  
Higman [Member] | Scenario Forecast [Member]          
Retirement Plans [Abstract]          
Pension contributions     $ 700    
Pension Plan [Member]          
Components of net periodic benefit cost [Abstract]          
Service cost $ 878 $ 823   1,483 $ 1,697
Interest cost 4,608 4,267   9,095 8,590
Expected return on plan assets (6,812) (6,224)   (13,621) (12,442)
Amortization of actuarial (gain) loss (2,067) (692)   (4,501) (1,165)
Net periodic benefit cost (3,393) (1,826)   (7,544) (3,320)
SERP [Member]          
Components of net periodic benefit cost [Abstract]          
Service cost 0 0   0 0
Interest cost 10 9   20 19
Expected return on plan assets 0 0   0 0
Amortization of actuarial (gain) loss 7 8   14 16
Net periodic benefit cost 17 17   34 35
Other Postretirement Benefits Plan [Member]          
Components of net periodic benefit cost [Abstract]          
Interest cost 6 5   11 10
Amortization of actuarial (gain) loss (66) (70)   (131) (140)
Net periodic benefit cost $ (60) $ (65)   $ (120) $ (130)