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, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Cost of Products Sold	$ 139,029	$ 163,890	$ 433,323	$ 470,500
Amortization of prior service costs and unrecognized gains	55,365	56,135	174,552	178,721
Income tax provision	(920)	(1,840)	(3,160)	(4,830)
Net Sales	(170,408)	(224,200)	(560,413)	(646,266)
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	110	182	164	(18)
Income tax provision	0	0	0	0
Net loss from Continuing Operations	(110)	182	(164)	18
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	(1,331)	384	(2,122)	1,403
Income tax provision	56	(75)	161	(184)
Net loss from Continuing Operations	(1,275)	309	(1,961)	1,219
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]
Cost of Products Sold	1,263	(92)	1,997	(746)
Net Sales	$ (68)	$ (476)	$ (125)	$ (657)