Accumulated Other Comprehensive Income ("AOCI") (Schedule of Items Reclassified to Statement of Income) (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2026	Mar. 31, 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	$ (23,099)	$ (23,625)
Income tax effect	7,650	6,276
Effect on net income due to items reclassified from Accumulated Other Comprehensive Income/(Loss)	(15,281)	(17,355)
Other (income)/expense, net	(3,193)	983
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	(133)	(192)
Income tax effect	50	14
Effect on net income due to items reclassified from Accumulated Other Comprehensive Income/(Loss)	(83)	(178)
Reclassification out of Accumulated Other Comprehensive Income | Pension and postretirement liability adjustments
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Income tax effect	(104)	(499)
Effect on net income due to items reclassified from Accumulated Other Comprehensive Income/(Loss)	225	1,351
Other (income)/expense, net	329	1,850
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	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)
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	$ 368	$ 287