Revenue Recognition - Schedule of Disaggregation of Revenue by Major Market (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2018	Sep. 30, 2017
Disaggregation Of Revenue [Line Items]
Net sales	$ 135,219	$ 135,113	$ 428,347	$ 406,937
Consumer [Member]
Disaggregation Of Revenue [Line Items]
Net sales	20,048		64,325
Vehicle [Member]
Disaggregation Of Revenue [Line Items]
Net sales	23,037		75,338
Food and Beverage [Member]
Disaggregation Of Revenue [Line Items]
Net sales	19,159		72,124
Industrial [Member]
Disaggregation Of Revenue [Line Items]
Net sales	35,418		105,745
Auto Aftermarket [Member]
Disaggregation Of Revenue [Line Items]
Net sales	37,557		110,815
Operating Segments [Member] | Material Handling [Member]
Disaggregation Of Revenue [Line Items]
Net sales	97,682	95,192	317,621	289,700
Operating Segments [Member] | Material Handling [Member] | Consumer [Member]
Disaggregation Of Revenue [Line Items]
Net sales	20,048		64,325
Operating Segments [Member] | Material Handling [Member] | Vehicle [Member]
Disaggregation Of Revenue [Line Items]
Net sales	23,037		75,338
Operating Segments [Member] | Material Handling [Member] | Food and Beverage [Member]
Disaggregation Of Revenue [Line Items]
Net sales	19,159		72,124
Operating Segments [Member] | Material Handling [Member] | Industrial [Member]
Disaggregation Of Revenue [Line Items]
Net sales	35,438		105,834
Operating Segments [Member] | Distribution [Member]
Disaggregation Of Revenue [Line Items]
Net sales	37,557	40,004	110,815	117,836
Operating Segments [Member] | Distribution [Member] | Auto Aftermarket [Member]
Disaggregation Of Revenue [Line Items]
Net sales	37,557		110,815
Inter-company [Member]
Disaggregation Of Revenue [Line Items]
Net sales	(20)	$ (83)	(89)	$ (599)
Inter-company [Member] | Industrial [Member]
Disaggregation Of Revenue [Line Items]
Net sales	$ (20)		$ (89)