Other (Income) Expense (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Other (Income) Expense [Line Items]
Other (Income) expense, net	$ (737)	$ 632	$ (400)
Sale of assets [Member]
Other (Income) Expense [Line Items]
Other (Income) expense, net	(1,078)	(346)	(618)
Results of non-consolidated subsidiaries [Member]
Other (Income) Expense [Line Items]
Other (Income) expense, net	(203)	(332)	(506)
Foreign exchange [Member]
Other (Income) Expense [Line Items]
Other (Income) expense, net	2,598	951	1,776
Rents and royalties [Member]
Other (Income) Expense [Line Items]
Other (Income) expense, net	(510)	(454)	(420)
Return on pension assets and other pension costs [Member]
Other (Income) Expense [Line Items]
Other (Income) expense, net	(644)	(587)	(605)
Acquisition-related costs [Member]
Other (Income) Expense [Line Items]
Other (Income) expense, net	623	0	0
Insurance settlement [Member]
Other (Income) Expense [Line Items]
Other (Income) expense, net	(707)	0	0
Severance, compensation and other charges [Member]
Other (Income) Expense [Line Items]
Other (Income) expense, net	0	(1,145)	0
Other, net [Member]
Other (Income) Expense [Line Items]
Other (Income) expense, net	$ (816)	$ 255	$ (27)