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Summary of Significant Accounting Policies (Details) - Schedule of lease revenues and fees - USD ($)
3 Months Ended
Mar. 31, 2021
Mar. 31, 2020
Schedule of lease revenues and fees [Abstract]    
Lease billings and accruals $ 39,938,013 $ 31,380,632
Provision for doubtful accounts 8,833,349 7,682,927
Lease revenues and fees $ 31,104,664 $ 23,697,705