Intangible Assets - Components (Details) - USD ($) $ in Thousands	Mar. 31, 2022	Dec. 31, 2021
Finite-Lived Intangible Assets [Line Items]
Cost	$ 64,477	$ 64,377
Accumulated Amortization	(12,449)	(11,202)
Net	52,028	53,175
Raw material supply agreement
Finite-Lived Intangible Assets [Line Items]
Cost	6,230	6,230
Accumulated Amortization	(4,381)	(4,296)
Net	1,849	1,934
RD technology
Finite-Lived Intangible Assets [Line Items]
Cost	8,300	8,300
Accumulated Amortization	(4,334)	(4,196)
Net	3,966	4,104
Trade names
Finite-Lived Intangible Assets [Line Items]
Cost	4,700	4,700
Accumulated Amortization	(235)	0
Net	4,465	4,700
Acquired customer relationships
Finite-Lived Intangible Assets [Line Items]
Cost	45,047	44,947
Accumulated Amortization	(3,299)	(2,510)
Net	41,748	42,437
Other intangibles
Finite-Lived Intangible Assets [Line Items]
Cost	200	200
Accumulated Amortization	(200)	(200)
Net	$ 0	$ 0