Revenue Recognition - Schedule of Revenue by Major Market (Details) - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2019	Sep. 30, 2019	Jun. 30, 2019	Mar. 31, 2019	Dec. 31, 2018	Sep. 30, 2018	Jun. 30, 2018	Mar. 31, 2018	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Disaggregation Of Revenue [Line Items]
Net sales	$ 116,818	$ 125,480	$ 134,285	$ 139,115	$ 138,388	$ 135,219	$ 140,560	$ 152,568	$ 515,698	$ 566,735	$ 547,043
Operating Segments [Member] | Material Handling [Member]
Disaggregation Of Revenue [Line Items]
Net sales									356,407	417,199	391,313
Operating Segments [Member] | Distribution [Member]
Disaggregation Of Revenue [Line Items]
Net sales									159,349	149,636	156,428
Inter-company [Member]
Disaggregation Of Revenue [Line Items]
Net sales									(58)	(100)	$ (698)
Consumer [Member]
Disaggregation Of Revenue [Line Items]
Net sales									71,272	78,174
Consumer [Member] | Operating Segments [Member] | Material Handling [Member]
Disaggregation Of Revenue [Line Items]
Net sales									71,272	78,174
Vehicle [Member]
Disaggregation Of Revenue [Line Items]
Net sales									82,768	95,247
Vehicle [Member] | Operating Segments [Member] | Material Handling [Member]
Disaggregation Of Revenue [Line Items]
Net sales									82,768	95,247
Food and Beverage [Member]
Disaggregation Of Revenue [Line Items]
Net sales									68,416	101,610
Food and Beverage [Member] | Operating Segments [Member] | Material Handling [Member]
Disaggregation Of Revenue [Line Items]
Net sales									68,416	101,610
Industrial [Member]
Disaggregation Of Revenue [Line Items]
Net sales									133,893	142,068
Industrial [Member] | Operating Segments [Member] | Material Handling [Member]
Disaggregation Of Revenue [Line Items]
Net sales									133,951	142,168
Industrial [Member] | Inter-company [Member]
Disaggregation Of Revenue [Line Items]
Net sales									(58)	(100)
Auto Aftermarket [Member]
Disaggregation Of Revenue [Line Items]
Net sales									159,349	149,636
Auto Aftermarket [Member] | Operating Segments [Member] | Distribution [Member]
Disaggregation Of Revenue [Line Items]
Net sales									$ 159,349	$ 149,636