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Property, Equipment and Leasehold Improvements - Additional Information (Details) - USD ($)
3 Months Ended 6 Months Ended
Jun. 30, 2021
Jun. 30, 2020
Jun. 30, 2021
Jun. 30, 2020
Property Plant And Equipment [Abstract]        
Depreciation and amortization expense $ 1,165,385 $ 635,104 $ 2,313,395 $ 1,252,573