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Income Taxes - Summary of The Reconciliation of The Beginning and Ending Amount of Unrecognized Tax Benefits (Detail) - USD ($)
12 Months Ended
Dec. 31, 2020
Dec. 31, 2019
Reconciliation of Unrecognized Tax Benefits, Excluding Amounts Pertaining to Examined Tax Returns [Roll Forward]    
Beginning Balance $ 2,113,263 $ 0
Additions for current year 7,536,097 1,720,865
Additions for prior year 2,382,014 392,398
Subtractions for current year (1,690,986)  
Ending Balance $ 10,340,388 $ 2,113,263