Goodwill and Intangible Assets - Changes in Intangibles (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Finite-lived Intangible Assets [Roll Forward]
Finite-lived intangible assets beginning balance			$ 44,645
Amortization of intangible assets			(1,368)	$ (1,514)
Finite-lived intangible assets ending balance	$ 34,666		34,666
Indefinite-lived Intangible Assets [Roll Forward]
Impairment charges	0	$ 0	8,373	$ 0
Product acquisition costs
Indefinite-lived Intangible Assets [Roll Forward]
Indefinite-lived intangible assets, beginning balance	9,225		13,103
Loss on impairment			(3,512)
Foreign currency translation	147		(366)
Indefinite-lived intangible assets, ending balance	9,372		9,372
Impairment charges, indefinite-lived			3,512
In process research and development ("IPR&D")
Indefinite-lived Intangible Assets [Roll Forward]
Indefinite-lived intangible assets, beginning balance	255		327
Loss on impairment			0
Foreign currency translation	42		(72)
Indefinite-lived intangible assets, ending balance	297		297
Impairment charges, indefinite-lived			0
Trademarks and Technology
Finite-lived Intangible Assets [Roll Forward]
Finite-lived intangible assets beginning balance	23,307		29,058
Amortization of intangible assets	(540)		(652)
Loss on impairment			(4,861)
Foreign currency translation	344		(238)
Finite-lived intangible assets ending balance	23,111		23,111
Indefinite-lived Intangible Assets [Roll Forward]
Impairment charges, finite-lived			4,861
Customer relationships
Finite-lived Intangible Assets [Roll Forward]
Finite-lived intangible assets beginning balance	1,912		2,157
Amortization of intangible assets	(87)		(89)
Loss on impairment			0
Foreign currency translation	61		(156)
Finite-lived intangible assets ending balance	$ 1,886		1,886
Indefinite-lived Intangible Assets [Roll Forward]
Impairment charges, finite-lived			$ 0