Accumulated Other Comprehensive Income ("AOCI") (Schedule of Items Reclassified to Statement of Income) (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2025	Sep. 30, 2024	Sep. 30, 2025	Sep. 30, 2024
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	$ 122,057	$ (19,503)	$ 84,846	$ (92,441)
Income tax effect	(24,419)	1,282	(13,889)	22,131
Effect on net income due to items reclassified from Accumulated Other Comprehensive Income/(Loss)	97,760	(18,029)	71,222	(69,944)
Total other (income)/expense, net	(347)	3,257	4,170	5,932
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	(53)	(2,675)	(324)	(10,893)
Income tax effect	17	658	51	2,681
Effect on net income due to items reclassified from Accumulated Other Comprehensive Income/(Loss)	(36)	(2,017)	(273)	(8,212)
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	(86)	(42)	178	(127)
Effect on net income due to items reclassified from Accumulated Other Comprehensive Income/(Loss)	191	97	(626)	290
Total other (income)/expense, net	277	139	(804)	417
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	0	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	(38)	(37)	(112)	(113)
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	$ 315	$ 176	$ 908	$ 530