Intangible assets, net - Summary of Intangible Assets (Details) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2021	Dec. 31, 2020
Finite-Lived Intangible Assets [Line Items]
Intangible assets, gross	$ 27,616	$ 27,639
Accumulated amortization	(9,797)	(7,645)
Total	17,819	19,994
Patent costs
Finite-Lived Intangible Assets [Line Items]
Intangible assets, gross	$ 3,508	3,595
Patent costs | Minimum
Finite-Lived Intangible Assets [Line Items]
Estimated Life	1 year
Patent costs | Maximum
Finite-Lived Intangible Assets [Line Items]
Estimated Life	18 years
Developed technology
Finite-Lived Intangible Assets [Line Items]
Intangible assets, gross	$ 17,409	17,344
Developed technology | Minimum
Finite-Lived Intangible Assets [Line Items]
Estimated Life	5 years
Developed technology | Maximum
Finite-Lived Intangible Assets [Line Items]
Estimated Life	10 years
In-process research & development
Finite-Lived Intangible Assets [Line Items]
Intangible assets, gross	$ 1,580	1,580
Customer base
Finite-Lived Intangible Assets [Line Items]
Intangible assets, gross	$ 1,302	1,302
Customer base | Minimum
Finite-Lived Intangible Assets [Line Items]
Estimated Life	5 years
Customer base | Maximum
Finite-Lived Intangible Assets [Line Items]
Estimated Life	7 years
Trade names
Finite-Lived Intangible Assets [Line Items]
Intangible assets, gross	$ 3,121	3,122
Trade names | Minimum
Finite-Lived Intangible Assets [Line Items]
Estimated Life	3 years
Trade names | Maximum
Finite-Lived Intangible Assets [Line Items]
Estimated Life	15 years
Backlog
Finite-Lived Intangible Assets [Line Items]
Intangible assets, gross	$ 696	$ 696
Estimated Life	3 years