Accumulated Other Comprehensive Income (Loss) (Reclassifications out of AOCI) (Details 3) - USD ($) $ in Thousands		3 Months Ended						9 Months Ended
		Sep. 30, 2022	Jun. 30, 2022	Mar. 31, 2022	Sep. 30, 2021	Jun. 30, 2021	Mar. 31, 2021	Sep. 30, 2022	Sep. 30, 2021
Reclassification Adjustment Out Of Accumulated Other Comprehensive Income [Line Items]
Interest expense		$ 11,579			$ 9,343			$ 38,969	$ 25,144
Provision for (Benefit from) Income Taxes		12,600			(5,900)			26,800	78,500
Net of Tax		(33,840)	$ 66,615	$ (96,566)	(39,683)	$ (115,926)	$ (112,635)	(63,791)	(268,244)
Reclassification out of Accumulated Other Comprehensive Income [Member]
Reclassification Adjustment Out Of Accumulated Other Comprehensive Income [Line Items]
Net of Tax		(12,768)			(74)			(37,985)	(1,058)
Foreign Currency Translation Adjustment [Member]
Reclassification Adjustment Out Of Accumulated Other Comprehensive Income [Line Items]
Reclassifications, net of tax								0
Pension and Other Postretirement Plans [Member]
Reclassification Adjustment Out Of Accumulated Other Comprehensive Income [Line Items]
Reclassifications, before tax		(17,367)			(273)			(51,791)	(2,042)
Provision for (Benefit from) Income Tax		4,476			50			13,348	528
Reclassifications, net of tax		(12,891)			(223)			(38,443)	(1,514)
Net Prior Service (Credit) Cost [Member]
Reclassification Adjustment Out Of Accumulated Other Comprehensive Income [Line Items]
Reclassifications, before tax	[1]	716			793			2,148	2,377
Provision for (Benefit from) Income Tax		(185)			(188)			(554)	(615)
Reclassifications, net of tax		531			605			1,594	1,762
Net Actuarial Gain [Member]
Reclassification Adjustment Out Of Accumulated Other Comprehensive Income [Line Items]
Reclassifications, before tax	[1]	(18,083)			(1,066)			(53,939)	(4,419)
Provision for (Benefit from) Income Tax		4,661			238			13,902	1,143
Reclassifications, net of tax		(13,422)			(828)			(40,037)	(3,276)
Cash Flow Hedges [Member]
Reclassification Adjustment Out Of Accumulated Other Comprehensive Income [Line Items]
Reclassifications, net of tax								458
Cash Flow Hedges [Member] | Reclassification out of Accumulated Other Comprehensive Income [Member]
Reclassification Adjustment Out Of Accumulated Other Comprehensive Income [Line Items]
Interest expense		$ 123			$ 149			$ 458	$ 456

[1] These accumulated other comprehensive income 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.