Revenue Recognition - Schedule of Disaggregation of Revenue by Major Market (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
Disaggregation Of Revenue [Line Items]
Net sales	$ 134,285	$ 140,560	$ 273,400	$ 293,128
Consumer [Member]
Disaggregation Of Revenue [Line Items]
Net sales	22,515	27,046	40,300	44,277
Vehicle [Member]
Disaggregation Of Revenue [Line Items]
Net sales	21,962	26,758	44,482	52,301
Food and Beverage [Member]
Disaggregation Of Revenue [Line Items]
Net sales	16,818	15,308	41,967	52,965
Industrial [Member]
Disaggregation Of Revenue [Line Items]
Net sales	34,595	33,971	72,082	70,327
Auto Aftermarket [Member]
Disaggregation Of Revenue [Line Items]
Net sales	38,395	37,477	74,569	73,258
Operating Segments [Member] | Material Handling [Member]
Disaggregation Of Revenue [Line Items]
Net sales	95,902	103,130	198,853	219,939
Operating Segments [Member] | Material Handling [Member] | Consumer [Member]
Disaggregation Of Revenue [Line Items]
Net sales	22,515	27,046	40,300	44,277
Operating Segments [Member] | Material Handling [Member] | Vehicle [Member]
Disaggregation Of Revenue [Line Items]
Net sales	21,962	26,758	44,482	52,301
Operating Segments [Member] | Material Handling [Member] | Food and Beverage [Member]
Disaggregation Of Revenue [Line Items]
Net sales	16,818	15,308	41,967	52,965
Operating Segments [Member] | Material Handling [Member] | Industrial [Member]
Disaggregation Of Revenue [Line Items]
Net sales	34,607	34,018	72,104	70,396
Operating Segments [Member] | Distribution [Member]
Disaggregation Of Revenue [Line Items]
Net sales	38,395	37,477	74,569	73,258
Operating Segments [Member] | Distribution [Member] | Auto Aftermarket [Member]
Disaggregation Of Revenue [Line Items]
Net sales	38,395	37,477	74,569	73,258
Inter-company [Member]
Disaggregation Of Revenue [Line Items]
Net sales	(12)	(47)	(22)	(69)
Inter-company [Member] | Industrial [Member]
Disaggregation Of Revenue [Line Items]
Net sales	$ (12)	$ (47)	$ (22)	$ (69)