Goodwill and Intangible Assets (Details 2) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2018	Sep. 30, 2017
Finite-lived Intangible Assets [Roll Forward]
Finite-lived intangible assets beginning balance	$ 56,017
Amortization	(2,302)	$ (2,143)
Finite-lived intangible assets ending balance	52,045
Indefinite-lived Intangible Assets [Roll Forward]
Loss on impairment	(22)	$ (113)
In process research and development (IPR&D)
Indefinite-lived Intangible Assets [Roll Forward]
Indefinite-lived intangible assets, beginning balance	18,311
Loss on impairment	(15)
Foreign currency translation	(531)
Indefinite-lived intangible assets, ending balance	17,765
Trademarks and Technology
Finite-lived Intangible Assets [Roll Forward]
Finite-lived intangible assets beginning balance	34,696
Amortization	(2,022)
Impairment of Intangible Assets, Finite-lived	(7)
Foreign currency translation	(1,033)
Finite-lived intangible assets ending balance	31,634
Customer relationships
Finite-lived Intangible Assets [Roll Forward]
Finite-lived intangible assets beginning balance	3,010
Amortization	(280)
Foreign currency translation	(84)
Finite-lived intangible assets ending balance	$ 2,646