Other (Income) Expense, Net (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Other Income Expense [Line Items]
Other (Income) expense, net	$ (1,184)	$ (1,088)	$ (4,222)	$ 987
Gain on sale of assets [Member]
Other Income Expense [Line Items]
Other (Income) expense, net	(231)	(206)	(350)	(556)
Results of non-consolidated subsidiaries [Member]
Other Income Expense [Line Items]
Other (Income) expense, net	(31)	33	(1)	(176)
Foreign Currency Gain (Loss) [Member]
Other Income Expense [Line Items]
Other (Income) expense, net	(140)	982	(196)	308
Rents and royalties [Member]
Other Income Expense [Line Items]
Other (Income) expense, net	(133)	(114)	(414)	(356)
Return on pension assets and other pension costs [Member]
Other Income Expense [Line Items]
Other (Income) expense, net	(77)	(161)	(232)	(468)
Gain On Sale Of Business [Member]
Other Income Expense [Line Items]
Other (Income) expense, net	(0)	0	(1,012)	0
Curtailment [Member]
Other Income Expense [Line Items]
Other (Income) expense, net	0	0	0	(1,034)
Loss (recovery) on lease abandonment [Member]
Other Income Expense [Line Items]
Other (Income) expense, net	0	(122)	0	504
Cost reduction and other charges [Member]
Other Income Expense [Line Items]
Other (Income) expense, net	0	0	0	3,943
Rebates and Other Credits [Member]
Other Income Expense [Line Items]
Other (Income) expense, net	0	(763)	0	(763)
Insurance Settlement [Member]
Other Income Expense [Line Items]
Other (Income) expense, net	(550)	0	(1,300)	0
Other, net [Member]
Other Income Expense [Line Items]
Other (Income) expense, net	$ (22)	$ (737)	$ (717)	$ (415)