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Leases - Summary Of Lease Cost (Detail) - USD ($)
 12 Months Ended
Dec. 31, 2020
Dec. 31, 2019
Lease cost    
Operating lease cost $ 10,441,532 $ 10,190,243
Finance lease cost:    
Amortization of right-of-use asset 13,333 22,088
Interest on lease liability 5,371 11,285
Short-term lease cost 28,800 28,800
Total lease cost 10,489,036 10,252,416
Other information    
Operating cash flows from operating leases 10,775,742 9,901,889
Operating cash flows from finance lease 5,371 11,285
Financing cash flows from finance lease 64,821 67,492
Right-of-use assets obtained in exchange for new operating lease liabilities 1,823,807 5,523,800
Right-of-use assets obtained in exchange for new finance lease liabilities $ 0 $ 0
Weighted-average remaining lease term – operating leases 6 years  
Weighted-average remaining lease term – finance lease 25 years  
Weighted-average discount rate – operating leases 8.20%  
Weighted-average discount rate – finance lease 3.90%