Goodwill and Intangible Assets - Change in Goodwill (Details) $ in Thousands	9 Months Ended
	Sep. 30, 2016 USD ($)
Goodwill [Roll Forward]
Beginning balance	$ 64,035
Foreign currency translation	1,100
Impairment charges	(5,676)
Ending balance	59,459
Distribution
Goodwill [Roll Forward]
Beginning balance	505
Foreign currency translation	0
Impairment charges	0
Ending balance	505
Material Handling
Goodwill [Roll Forward]
Beginning balance	63,530
Foreign currency translation	1,100
Impairment charges	(5,676)
Ending balance	$ 58,954