v3.25.1
Pensions and Other Postretirement Benefit Plans - (Schedule of Net Benefit Costs) (Details) - USD ($)
$ in Thousands
3 Months Ended
Mar. 31, 2025
Mar. 31, 2024
Defined Benefit Plan Disclosure [Line Items]    
Net gain related to curtailments and settlements $ 1,600  
Pension plans    
Defined Benefit Plan Disclosure [Line Items]    
Service cost 371 $ 497
Interest cost 1,450 1,532
Expected return on assets (1,232) (1,358)
Curtailment cost/(income) (3,770) 0
Settlement cost/(income) 2,170 0
Amortization of prior service cost/(income) (6) (7)
Amortization of net actuarial loss 295 187
Net periodic benefit cost/(credit) (722) 851
Other postretirement benefits    
Defined Benefit Plan Disclosure [Line Items]    
Service cost 10 12
Interest cost 353 354
Expected return on assets 0 0
Curtailment cost/(income) 0 0
Settlement cost/(income) 0 0
Amortization of prior service cost/(income) (31) (31)
Amortization of net actuarial loss (8) (9)
Net periodic benefit cost/(credit) $ 324 $ 326