Intangible Assets and Goodwill - Intangible Assets (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017	Dec. 31, 2017
Finite Lived And Indefinite Lived Intangible Assets By Major Class [Line Items]
Amortizable Intangibles, gross	$ 97,462		$ 7,483
Less accumulated amortization	(5,942)		(4,733)
Total net amortizable intangibles	91,520		2,750
Intangible assets, net of accumulated amortization	92,036		3,266
Amortization expense	1,140	$ 260
Trademarks and other
Finite Lived And Indefinite Lived Intangible Assets By Major Class [Line Items]
Non-amortizable intangibles	$ 516		516
Distribution agreement
Finite Lived And Indefinite Lived Intangible Assets By Major Class [Line Items]
Amortizable Intangibles, useful lives	2 years
Amortizable Intangibles, gross	$ 3,021		3,021
Certification
Finite Lived And Indefinite Lived Intangible Assets By Major Class [Line Items]
Amortizable Intangibles, useful lives	7 years
Amortizable Intangibles, gross	$ 350		350
Customer relationships
Finite Lived And Indefinite Lived Intangible Assets By Major Class [Line Items]
Amortizable Intangibles, gross	$ 81,443		1,191
Patents and processes
Finite Lived And Indefinite Lived Intangible Assets By Major Class [Line Items]
Amortizable Intangibles, useful lives	10 years
Amortizable Intangibles, gross	$ 2,087		1,998
Brand names
Finite Lived And Indefinite Lived Intangible Assets By Major Class [Line Items]
Amortizable Intangibles, gross	$ 10,561		$ 923
Minimum | Customer relationships
Finite Lived And Indefinite Lived Intangible Assets By Major Class [Line Items]
Amortizable Intangibles, useful lives	12 years
Minimum | Brand names
Finite Lived And Indefinite Lived Intangible Assets By Major Class [Line Items]
Amortizable Intangibles, useful lives	10 years
Maximum | Customer relationships
Finite Lived And Indefinite Lived Intangible Assets By Major Class [Line Items]
Amortizable Intangibles, useful lives	20 years
Maximum | Brand names
Finite Lived And Indefinite Lived Intangible Assets By Major Class [Line Items]
Amortizable Intangibles, useful lives	15 years