Accumulated Other Comprehensive Income (Loss) (Reclassifications out of AOCI) (Details 3) - USD ($) $ in Thousands		3 Months Ended						9 Months Ended
		Sep. 30, 2024	Jun. 30, 2024	Mar. 31, 2024	Sep. 30, 2023	Jun. 30, 2023	Mar. 31, 2023	Sep. 30, 2024	Sep. 30, 2023
Reclassification Adjustment Out Of Accumulated Other Comprehensive Income [Line Items]
Other (expense) income, net		$ (465)			$ 3,581			$ 2,973	$ 22,458
Interest expense		25,896			11,810			136,607	37,878
Provision for Income Taxes		38,500			9,400			86,100	70,400
Net of Tax		(74,506)	$ 18,827	$ (125,339)	21,134	$ (124,171)	$ (52,977)	(181,018)	(156,014)
Reclassification out of Accumulated Other Comprehensive Income [Member]
Reclassification Adjustment Out Of Accumulated Other Comprehensive Income [Line Items]
Net of Tax		(10,440)			(12,302)			(29,802)	(27,849)
Foreign Currency Translation Adjustment [Member]
Reclassification Adjustment Out Of Accumulated Other Comprehensive Income [Line Items]
Reclassifications, before tax		(765)			0			(765)	0
Provision for Income Tax		0			0			0	0
Reclassifications, net of tax		(765)			0			(765)	0
Foreign Currency Translation Adjustment [Member] | Reclassification out of Accumulated Other Comprehensive Income [Member]
Reclassification Adjustment Out Of Accumulated Other Comprehensive Income [Line Items]
Other (expense) income, net		(765)			0			(765)	0
Pension and Other Postretirement Plans [Member]
Reclassification Adjustment Out Of Accumulated Other Comprehensive Income [Line Items]
Reclassifications, before tax		(12,847)			(10,063)			(38,543)	(30,443)
Provision for Income Tax		3,288			2,589			9,867	7,831
Reclassifications, net of tax		(9,559)			(7,474)			(28,676)	(22,612)
Net Prior Service (Credit) Cost [Member]
Reclassification Adjustment Out Of Accumulated Other Comprehensive Income [Line Items]
Reclassifications, before tax	[1]	(487)			410			(1,463)	1,230
Provision for Income Tax		124			(105)			374	(316)
Reclassifications, net of tax		(363)			305			(1,089)	914
Net Actuarial Gain [Member]
Reclassification Adjustment Out Of Accumulated Other Comprehensive Income [Line Items]
Reclassifications, before tax	[1]	(12,360)			(10,473)			(37,080)	(31,673)
Provision for Income Tax		3,164			2,694			9,493	8,147
Reclassifications, net of tax		(9,196)			(7,779)			(27,587)	(23,526)
Cash Flow Hedges [Member]
Reclassification Adjustment Out Of Accumulated Other Comprehensive Income [Line Items]
Reclassifications, net of tax								(361)
Cash Flow Hedges [Member] | Reclassification out of Accumulated Other Comprehensive Income [Member]
Reclassification Adjustment Out Of Accumulated Other Comprehensive Income [Line Items]
Interest expense		$ (116)			$ (4,828)			$ (361)	$ (5,237)

[1] These accumulated other comprehensive income (loss) components are included in the computation of net periodic pension and postretirement plan cost (see Note 11) and are included in non-operating pension and postretirement benefit income in the Company’s Condensed Consolidated Statements of Operations.