BALANCE SHEET COMPONENTS - Property and Equipment (Details) - USD ($) $ in Thousands	Mar. 31, 2022	Dec. 31, 2021
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	$ 283,653	$ 260,884
Less: accumulated depreciation and amortization	(19,532)	(16,507)
Total property, plant and equipment, net	264,121	244,377
Buildings
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	131,118	104,333
Construction-in-progress
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	85,038	103,515
Machinery and equipment
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	45,282	36,551
Other
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	8,751	3,914
Software
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	8,068	7,562
Leasehold improvements
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	2,891	2,883
Furniture and fixtures
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	1,480	1,480
Finance lease assets
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	$ 1,025	$ 646