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, 2025	Jun. 30, 2024	Jun. 30, 2025	Jun. 30, 2024
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Interest (income)/expense, net related to interest rate swaps included in Income before taxes	$ (13,586)	$ (34,298)	$ (37,211)	$ (72,938)
Income tax effect	4,254	9,578	10,530	20,849
Effect on net income due to items reclassified from Accumulated Other Comprehensive Income	(9,183)	(24,624)	(26,538)	(51,915)
Total other (income)/expense, net	3,534	5,657	4,517	2,675
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 before taxes	(79)	(4,180)	(271)	(8,218)
Income tax effect	20	1,001	34	2,023
Effect on net income due to items reclassified from Accumulated Other Comprehensive Income	(59)	(3,179)	(237)	(6,195)
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	763	(42)	264	(85)
Effect on net income due to items reclassified from Accumulated Other Comprehensive Income	(2,168)	96	(817)	193
Total other (income)/expense, net	(2,931)	138	(1,081)	278
Reclassification out of Accumulated Other Comprehensive Income | Pension settlement/curtailment
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Total other (income)/expense, net	(3,200)	0	(1,600)	0
Reclassification out of Accumulated Other Comprehensive Income | Amortization of prior service credit
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Total other (income)/expense, net	(37)	(38)	(74)	(76)
Reclassification out of Accumulated Other Comprehensive Income | Amortization of net actuarial loss
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Total other (income)/expense, net	$ 306	$ 176	$ 593	$ 354