Annual report pursuant to Section 13 and 15(d)

Commitments and Contingencies - Narrative (Details)

v3.20.4
Commitments and Contingencies - Narrative (Details) - USD ($)
12 Months Ended
Dec. 31, 2020
Dec. 31, 2019
Lessee, Lease, Description [Line Items]    
Rent expense $ 3,785,072 $ 3,381,825
Leases not yet commenced, liability $ 2,700,000  
Minimum    
Lessee, Lease, Description [Line Items]    
Term of leases not yet commenced 5 years  
Maximum    
Lessee, Lease, Description [Line Items]    
Term of leases not yet commenced 10 years