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Investments - Schedule Of Long Term Investments (Detail) - USD ($)
9 Months Ended 12 Months Ended
Sep. 30, 2021
Dec. 31, 2020
Longterm Investments [Line Items]    
Beginning balance $ 40,794,806 $ 14,068,821
Additions 31,053,096 525,000
Disposals (18,282,213) (169,818)
Fair value adjustments 14,604,387 26,370,803
Transfers out (17,542,250) 0
Ending balance $ 50,627,826 $ 40,794,806