Accumulated Other Comprehensive Income (Loss) (Changes) (Details) - USD ($) $ in Thousands	3 Months Ended	6 Months Ended
Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016
Accumulated Other Comprehensive Income (Loss), Net of Tax
Balances, beginning of period			$ (103,660)	$ 178,721
Other comprehensive income (loss) before reclassifications			66,817	35,337
Reclassifications into earnings			14,001	12,871
Other comprehensive income (loss), net of tax	$ 54,510	$ (581)	80,818	48,208
Balances, end of period	29,373	78,813	29,373	78,813
Cash flow hedges
Accumulated Other Comprehensive Income (Loss), Net of Tax
Balances, beginning of period			(1,485)	(3,912)
Other comprehensive income (loss) before reclassifications			(141)	(420)
Reclassifications into earnings			524	842
Other comprehensive income (loss), net of tax			383	422
Balances, end of period	(1,102)	(3,490)	(1,102)	(3,490)
Available for sale securities
Accumulated Other Comprehensive Income (Loss), Net of Tax
Balances, beginning of period			120	536
Other comprehensive income (loss) before reclassifications			1,734	5,862
Reclassifications into earnings			142	1
Other comprehensive income (loss), net of tax			1,876	5,863
Balances, end of period	1,996	6,399	1,996	6,399
Pension and postretirement benefit plans
Accumulated Other Comprehensive Income (Loss), Net of Tax
Balances, beginning of period			(787,813)	(738,768)
Other comprehensive income (loss) before reclassifications			(1,482)	(430)
Reclassifications into earnings			13,335	12,028
Other comprehensive income (loss), net of tax			11,853	11,598
Balances, end of period	(775,960)	(727,170)	(775,960)	(727,170)
Foreign currency adjustments
Accumulated Other Comprehensive Income (Loss), Net of Tax
Balances, beginning of period			(150,955)	(146,491)
Other comprehensive income (loss) before reclassifications			66,706	30,325
Reclassifications into earnings			0	0
Other comprehensive income (loss), net of tax			66,706	30,325
Balances, end of period	(84,249)	(116,166)	(84,249)	(116,166)
Total
Accumulated Other Comprehensive Income (Loss), Net of Tax
Balances, beginning of period			(940,133)	(888,635)
Other comprehensive income (loss), net of tax			80,818	48,208
Balances, end of period	$ (859,315)	$ (840,427)	$ (859,315)	$ (840,427)

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

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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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