Annual reports filed by certain Canadian issuers pursuant to Section 15(d) and Rule 15d-4

SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Estimated Useful Life of Assets (Detail)

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SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Estimated Useful Life of Assets (Detail)
 12 Months Ended
Dec. 31, 2020
Computer equipment [Member]  
Disclosure of detailed information about property, plant and equipment [line items]  
Estimated useful lives 3 years
Furniture and fixtures [Member]  
Disclosure of detailed information about property, plant and equipment [line items]  
Estimated useful lives 3 years
Machinery [member]  
Disclosure of detailed information about property, plant and equipment [line items]  
Estimated useful lives 3 years
Leasehold Improvements [Member]  
Disclosure of detailed information about property, plant and equipment [line items]  
Estimated useful lives Remaining term of the lease