Goodwill and Intangible Assets - Major Categories of Intangible Assets (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017
Finite-Lived Intangible Assets [Line Items]
Intangible assets accumulated amortization	$ (9,378)	$ (6,457)
Finite-lived intangible assets, net carrying amount	48,375	56,017
Intangible assets gross carrying amount	57,753	62,474
Intangible assets net carrying amount	48,375	56,017
In-process research and development (IPR&D)
Indefinite-lived Intangible Assets [Line Items]
Indefinite-lived intangible assets	719	3,629
Product Acquisition Costs
Finite-Lived Intangible Assets [Line Items]
Finite-lived intangible assets, gross carrying amount	13,308	14,682
Intangible assets accumulated amortization	0	0
Finite-lived intangible assets, net carrying amount	13,308	14,682
Trademarks and Technology
Finite-Lived Intangible Assets [Line Items]
Finite-lived intangible assets, gross carrying amount	40,169	40,380
Intangible assets accumulated amortization	(8,239)	(5,684)
Finite-lived intangible assets, net carrying amount	$ 31,930	$ 34,696
Intangible assets remaining amortization period	11 years 9 months 18 days	12 years 9 months 18 days
Customer Relationships
Finite-Lived Intangible Assets [Line Items]
Finite-lived intangible assets, gross carrying amount	$ 3,557	$ 3,783
Intangible assets accumulated amortization	(1,139)	(773)
Finite-lived intangible assets, net carrying amount	$ 2,418	$ 3,010
Intangible assets remaining amortization period	6 years 10 months 24 days	7 years 10 months 24 days