Intangible Assets and Goodwill - Summary of Intangible Assets (Details) - USD ($) $ in Thousands	9 Months Ended	12 Months Ended
	Sep. 30, 2021	Dec. 31, 2020
Finite Lived Intangible Assets [Line Items]
Balance	$ 28,790	$ 35,147
Amortization expense	(1,907)	(3,009)
Impairment		(3,348)
Balance	26,883	28,790
Licenses
Finite Lived Intangible Assets [Line Items]
Balance	20,146	20,146
Balance	20,146	20,146
Customer Relationships
Finite Lived Intangible Assets [Line Items]
Balance	1,668	2,247
Amortization expense	(435)	(579)
Balance	1,233	1,668
Non-competition Agreement
Finite Lived Intangible Assets [Line Items]
Balance	43	137
Amortization expense	(37)	(94)
Balance	6	43
Trademarks
Finite Lived Intangible Assets [Line Items]
Balance		3,725
Amortization expense		(377)
Impairment		(3,348)
Know-how (trade secrets)
Finite Lived Intangible Assets [Line Items]
Balance	6,933	8,892
Amortization expense	(1,435)	(1,959)
Balance	$ 5,498	$ 6,933