Accumulated Other Comprehensive Loss (Changes) (Details) - USD ($) $ in Thousands	3 Months Ended	6 Months Ended
Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Accumulated Other Comprehensive Income (Loss), Net of Tax
Balances, beginning of period	$ 92,882	$ 19,163	$ 112,632	$ 66,395
Other comprehensive income (loss) before reclassifications			(85,440)	(12,076)
Reclassifications into earnings			15,699	19,904
Other comprehensive (loss) income, net of tax	(49,723)	16,235	(69,741)	7,828
Balances, end of period	44,154	53,370	44,154	53,370
Cash flow hedges
Accumulated Other Comprehensive Income (Loss), Net of Tax
Balances, beginning of period			3,803	(1,411)
Other comprehensive income (loss) before reclassifications			6,817	3,456
Reclassifications into earnings			(255)	(32)
Other comprehensive (loss) income, net of tax			6,562	3,424
Balances, end of period	10,365	2,013	10,365	2,013
Available for sale securities
Accumulated Other Comprehensive Income (Loss), Net of Tax
Balances, beginning of period			(6,249)	402
Other comprehensive income (loss) before reclassifications			(26,554)	(4,783)
Reclassifications into earnings			(11)	(194)
Other comprehensive (loss) income, net of tax			(26,565)	(4,977)
Balances, end of period	(32,814)	(4,575)	(32,814)	(4,575)
Pension and postretirement benefit plans
Accumulated Other Comprehensive Income (Loss), Net of Tax
Balances, beginning of period			(756,639)	(851,063)
Other comprehensive income (loss) before reclassifications			0	0
Reclassifications into earnings			15,965	20,130
Other comprehensive (loss) income, net of tax			15,965	20,130
Balances, end of period	(740,674)	(830,933)	(740,674)	(830,933)
Foreign currency adjustments
Accumulated Other Comprehensive Income (Loss), Net of Tax
Balances, beginning of period			(21,227)	12,941
Other comprehensive income (loss) before reclassifications			(65,703)	(10,749)
Reclassifications into earnings			0	0
Other comprehensive (loss) income, net of tax			(65,703)	(10,749)
Balances, end of period	(86,930)	2,192	(86,930)	2,192
Total
Accumulated Other Comprehensive Income (Loss), Net of Tax
Balances, beginning of period	(800,330)	(847,538)	(780,312)	(839,131)
Other comprehensive (loss) income, net of tax	(49,723)	16,235	(69,741)	7,828
Balances, end of period	$ (850,053)	$ (831,303)	$ (850,053)	$ (831,303)

A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period.

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Amount after tax, before reclassification adjustments, of other comprehensive income (loss), attributable to parent.

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Amount after tax of other comprehensive income (loss) attributable to parent entity.

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Total of all stockholders' equity (deficit) items, net of receivables from officers, directors, owners, and affiliates of the entity which are attributable to the parent. The amount of the economic entity's stockholders' equity attributable to the parent excludes the amount of stockholders' equity which is allocable to that ownership interest in subsidiary equity which is not attributable to the parent (noncontrolling interest, minority interest). This excludes temporary equity and is sometimes called permanent equity.

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