Property, Plant and Equipment - Schedule of Property Plant and Equipment (Detail) - USD ($) $ in Thousands	Mar. 31, 2022	Dec. 31, 2021
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	$ 77,017	$ 64,725
Less accumulated depreciation and amortization	(7,688)	(7,540)
Total property, plant, and equipment, net	69,329	57,185
Land
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	1,462	912
Pilot plant
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	5,599	5,517
Lab equipment
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	2,447	2,227
Machinery and equipment
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	663	655
Computer and other equipment
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	417	388
Construction in process
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	$ 66,429	$ 55,026