Business Combinations, Goodwill and Intangible Assets - Intangible Assets (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Intangible Assets
Total intangible assets, gross	$ 22,353	$ 17,236
Accumulated amortization	(8,344)	(6,987)
Total	$ 14,009	10,249
Minimum
Intangible Assets
Estimated useful lives (Year)	3 years
Maximum
Intangible Assets
Estimated useful lives (Year)	10 years
Tradenames
Intangible Assets
Total intangible assets, gross	$ 555	555
Tradenames | Minimum
Intangible Assets
Estimated useful lives (Year)	5 years
Tradenames | Maximum
Intangible Assets
Estimated useful lives (Year)	7 years
Patents and Technological Know-how
Intangible Assets
Estimated useful lives (Year)	10 years
Total intangible assets, gross	$ 18,494	13,377
Proprietary software
Intangible Assets
Total intangible assets, gross	$ 2,981	2,981
Proprietary software | Minimum
Intangible Assets
Estimated useful lives (Year)	3 years
Proprietary software | Maximum
Intangible Assets
Estimated useful lives (Year)	15 years
Other
Intangible Assets
Total intangible assets, gross	$ 323	$ 323
Other | Minimum
Intangible Assets
Estimated useful lives (Year)	3 years
Other | Maximum
Intangible Assets
Estimated useful lives (Year)	5 years