Intangible Assets - Components (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
Components of Intangible assets
Cost	$ 64,377	$ 20,181
Accumulated amortization	(11,202)	(9,473)
Net	53,175	10,708
Raw material supply agreement
Components of Intangible assets
Cost	6,230	6,230
Accumulated amortization	(4,296)	(3,618)
Net	1,934	2,612
RD technology
Components of Intangible assets
Cost	8,300	8,300
Accumulated amortization	(4,196)	(3,643)
Net	4,104	4,657
Acquired customer relationships
Components of Intangible assets
Cost	44,947	4,747
Accumulated amortization	(2,510)	(2,025)
Net	42,437	2,722
Trade names
Components of Intangible assets
Cost	4,700
Accumulated amortization	0
Net	4,700
Other intangible assets
Components of Intangible assets
Cost	200	904
Accumulated amortization	(200)	(187)
Net	$ 0	$ 717