Annual and transition report of foreign private issuers pursuant to Section 13 or 15(d)

Summary of Significant Accounting Policies - Estimated Useful Life of Assets (Detail)

v3.20.1
Summary of Significant Accounting Policies - Estimated Useful Life of Assets (Detail)
 12 Months Ended
Dec. 31, 2019
Computer Equipment [member]  
Disclosure of detailed information about property, plant and equipment [line items]  
Estimated useful lives 3 years
Furniture and fixture [member] | Bottom of range [member]  
Disclosure of detailed information about property, plant and equipment [line items]  
Estimated useful lives 3 years
Furniture and fixture [member] | Top of range [member]  
Disclosure of detailed information about property, plant and equipment [line items]  
Estimated useful lives 5 years
Leasehold Improvements [member]  
Disclosure of detailed information about property, plant and equipment [line items]  
Estimated useful lives Term of the lease