Accumulated Other Comprehensive Income (Loss) (Reclassifications out of AOCI) (Details 3) - USD ($) $ in Thousands		3 Months Ended				6 Months Ended
		Jun. 30, 2022	Mar. 31, 2022	Jun. 30, 2021	Mar. 31, 2021	Jun. 30, 2022	Jun. 30, 2021
Reclassification Adjustment Out Of Accumulated Other Comprehensive Income [Line Items]
Interest expense		$ 15,973		$ 7,353		$ 27,390	$ 15,801
(Benefit from) Provision for Income Taxes		(21,400)		43,000		14,200	84,400
Net of Tax		66,615	$ (96,566)	(115,926)	$ (112,635)	(29,951)	(228,561)
Reclassification out of Accumulated Other Comprehensive Income [Member]
Reclassification Adjustment Out Of Accumulated Other Comprehensive Income [Line Items]
Net of Tax		(12,740)		56		(25,217)	(984)
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		(17,366)		(132)		(34,424)	(1,769)
Provision for (Benefit from) Income Tax		4,475		35		8,872	478
Reclassifications, net of tax		(12,891)		(97)		(25,552)	(1,291)
Net Prior Service (Credit) Cost [Member]
Reclassification Adjustment Out Of Accumulated Other Comprehensive Income [Line Items]
Reclassifications, before tax	[1]	716		792		1,432	1,584
Provision for (Benefit from) Income Tax		(185)		(214)		(369)	(427)
Reclassifications, net of tax		531		578		1,063	1,157
Net Actuarial Gain [Member]
Reclassification Adjustment Out Of Accumulated Other Comprehensive Income [Line Items]
Reclassifications, before tax	[1]	(18,082)		(924)		(35,856)	(3,353)
Provision for (Benefit from) Income Tax		4,660		249		9,241	905
Reclassifications, net of tax		(13,422)		(675)		(26,615)	(2,448)
Cash Flow Hedges [Member]
Reclassification Adjustment Out Of Accumulated Other Comprehensive Income [Line Items]
Reclassifications, net of tax						335
Cash Flow Hedges [Member] | Reclassification out of Accumulated Other Comprehensive Income [Member]
Reclassification Adjustment Out Of Accumulated Other Comprehensive Income [Line Items]
Interest expense		$ 151		$ 153		$ 335	$ 307

[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.