Quarterly report pursuant to Section 13 or 15(d)

PROPERTY, PLANT AND EQUIPMENT - Summary of Property and Equipment (Detail)

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PROPERTY, PLANT AND EQUIPMENT - Summary of Property and Equipment (Detail) - USD ($)
$ in Thousands
Mar. 31, 2021
Dec. 31, 2020
Property, Plant and Equipment [Line Items]    
Cost $ 111,678 $ 73,018
Accumulated Depreciation 3,290 2,800
Net Book Value 108,388 70,218
Building    
Property, Plant and Equipment [Line Items]    
Cost 12,029 12,029
Accumulated Depreciation 464 387
Net Book Value 11,565 11,642
Machinery and equipment    
Property, Plant and Equipment [Line Items]    
Cost 16,079 15,982
Accumulated Depreciation 2,795 2,388
Net Book Value 13,284 13,594
Fixtures and Furnishings    
Property, Plant and Equipment [Line Items]    
Cost 104 104
Accumulated Depreciation 26 22
Net Book Value 78 82
Land improvements    
Property, Plant and Equipment [Line Items]    
Cost 150 150
Accumulated Depreciation 5 3
Net Book Value 145 147
Land    
Property, Plant and Equipment [Line Items]    
Cost 1,150 1,150
Accumulated Depreciation 0 0
Net Book Value 1,150 1,150
Construction in process    
Property, Plant and Equipment [Line Items]    
Cost 82,166 43,603
Accumulated Depreciation 0 0
Net Book Value $ 82,166 $ 43,603