PROPERTY, PLANT AND EQUIPMENT - Additional Information (Details) - USD ($)	1 Months Ended			3 Months Ended	12 Months Ended
	Dec. 31, 2021	Feb. 28, 2021	Nov. 30, 2020	Dec. 31, 2021	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Property, Plant and Equipment [Line Items]
Capitalized expenditures					$ 138,000,000	$ 26,200,000	$ 2,800,000
Interest capitalized					264,000	162,000	0
Additions of property, plant and equipment		$ 9,400,000			123,870,000	22,370,000	2,274,000
Proceeds from government awards for property, plant and equipment			$ 9,600,000
Proceeds from government awards used for construction					4,382,000	0	0
Technology investment agreement, stage II optimization contribution	$ 5,200,000			$ 5,200,000	5,200,000
Decrease in property, plant and equipment				8,700,000
Decrease in depreciation expense					1,100,000
Asset impairment charges					$ 0	$ 0	$ 0
Assets under construction
Property, Plant and Equipment [Line Items]
Property, plant and equipment, transfers and changes	(27,200,000)
Decrease in property, plant and equipment				3,200,000
Building And Machinery And Equipment
Property, Plant and Equipment [Line Items]
Property, plant and equipment, transfers and changes	27,200,000
Buildings and building improvements
Property, Plant and Equipment [Line Items]
Property, plant and equipment, transfers and changes	6,000,000
Decrease in property, plant and equipment				2,000,000
Machinery and equipment
Property, Plant and Equipment [Line Items]
Property, plant and equipment, transfers and changes	$ 21,200,000
Decrease in property, plant and equipment				$ 2,400,000