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Summary of Significant Accounting Policies - Schedule of Estimated Useful Lives of Assets (Detail)
9 Months Ended
Sep. 30, 2021
Minimum  
Property, Plant and Equipment [Line Items]  
Estimated useful lives 3 years
Maximum  
Property, Plant and Equipment [Line Items]  
Estimated useful lives 5 years
Computer Equipment  
Property, Plant and Equipment [Line Items]  
Estimated useful lives 3 years
Office Furniture  
Property, Plant and Equipment [Line Items]  
Estimated useful lives 5 years
Machinery and equipment  
Property, Plant and Equipment [Line Items]  
Estimated useful lives 5 years
Leasehold Improvements | Minimum  
Property, Plant and Equipment [Line Items]  
Estimated useful lives 1 year
Leasehold Improvements | Maximum  
Property, Plant and Equipment [Line Items]  
Estimated useful lives 5 years