Accumulated Other Comprehensive Income (Loss) by Component (Reclassified Out of Accumulated Other Comprehensive Income) (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Net Sales	$ (268,145)	$ (283,776)	$ (800,734)	$ (859,073)
Cost of Products Sold	(194,703)	(206,137)	(585,837)	(627,052)
Amortization of prior service costs and unrecognized gains	(77,705)	(77,463)	(229,261)	(240,388)
Income tax provision	(4,425)	(7,000)	(8,200)	(11,200)
Net loss from Continuing Operations	(5,020)	(7,790)	(25,216)	(23,521)
Accumulated Defined Benefit Plans Adjustment [Member] | Reclassification out of Accumulated Other Comprehensive Income
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Amortization of prior service costs and unrecognized gains	230	3	306	47
Income tax provision	0	0	0	0
Net loss from Continuing Operations	230	3	306	47
Accumulated Net Gain (Loss) from Designated or Qualifying Cash Flow Hedges [Member] | Reclassification out of Accumulated Other Comprehensive Income
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Income (Loss) from Continuing Operations before Income Taxes	(798)	116	(1,250)	(1,070)
Income tax provision	100	165	178	613
Net loss from Continuing Operations	(698)	281	(1,072)	(457)
Accumulated Net Gain (Loss) from Designated or Qualifying Cash Flow Hedges [Member] | Reclassification out of Accumulated Other Comprehensive Income | Foreign currency forward contracts
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Net Sales	(1,417)	1,087	(2,826)	1,865
Cost of Products Sold	$ 619	$ (971)	$ 1,576	$ (2,935)