Goodwill and Intangible Assets - Change in Goodwill (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
Goodwill [Roll Forward]
Beginning balance	$ 66,774	$ 59,068
Acquisition	12,312	7,211
Purchase accounting adjustment	(68)
Foreign currency translation	238	495
Ending balance	79,256	66,774
Distribution [Member]
Goodwill [Roll Forward]
Beginning balance	7,716	505
Acquisition	0	7,211
Purchase accounting adjustment	(68)
Foreign currency translation	0	0
Ending balance	7,648	7,716
Material Handling [Member]
Goodwill [Roll Forward]
Beginning balance	59,058	58,563
Acquisition	12,312	0
Purchase accounting adjustment	0
Foreign currency translation	238	495
Ending balance	$ 71,608	$ 59,058