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Summary of Significant Accounting Policies - Schedule of Estimated Useful Lives by Major Asset Category (Detail)
12 Months Ended
Dec. 31, 2020
Machinery and Equipment | Minimum  
Property, Plant and Equipment [Line Items]  
Property and equipment, estimated useful lives 5 years
Machinery and Equipment | Maximum  
Property, Plant and Equipment [Line Items]  
Property and equipment, estimated useful lives 7 years
Computers and Software  
Property, Plant and Equipment [Line Items]  
Property and equipment, estimated useful lives 3 years
Furniture and Fixtures  
Property, Plant and Equipment [Line Items]  
Property and equipment, estimated useful lives 10 years