v3.26.1
Accumulated Other Comprehensive Income ("AOCI") (Schedule of Items Reclassified to Statement of Income) (Details) - USD ($)
$ in Thousands
 3 Months Ended 6 Months Ended
Jun. 30, 2026
Jun. 30, 2025
Jun. 30, 2026
Jun. 30, 2025
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]        
Interest (income)/expense, net related to interest rate swaps included in Income/(loss) before taxes $ (26,031) $ (13,586) $ (49,130) $ (37,211)
Other (income)/expense, net 39 3,534 (3,154) 4,517
Income tax effect 8,327 4,254 15,977 10,530
Effect on net income due to items reclassified from Accumulated Other Comprehensive Income/(Loss) (17,414) (9,183) (32,695) (26,538)
Reclassification out of Accumulated Other Comprehensive Income | Derivative valuation adjustment        
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]        
Interest (income)/expense, net related to interest rate swaps included in Income/(loss) before taxes (153) (79) (286) (271)
Income tax effect 82 20 132 34
Effect on net income due to items reclassified from Accumulated Other Comprehensive Income/(Loss) (71) (59) (154) (237)
Reclassification out of Accumulated Other Comprehensive Income | Pension and postretirement liability adjustments        
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]        
Other (income)/expense, net 327 (2,931) 656 (1,081)
Income tax effect (86) 763 (190) 264
Effect on net income due to items reclassified from Accumulated Other Comprehensive Income/(Loss) 241 (2,168) 466 (817)
Reclassification out of Accumulated Other Comprehensive Income | Pension settlement/curtailment        
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]        
Other (income)/expense, net 0 (3,200) 0 (1,600)
Reclassification out of Accumulated Other Comprehensive Income | Amortization of prior service credit        
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]        
Other (income)/expense, net (39) (37) (78) (74)
Reclassification out of Accumulated Other Comprehensive Income | Amortization of net actuarial loss        
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]        
Other (income)/expense, net $ 366 $ 306 $ 734 $ 593