General form of registration statement for all companies including face-amount certificate companies

Company Liquidity, Operations and Management's Plans - Additional Information (Details)

v3.21.4
Company Liquidity, Operations and Management's Plans - Additional Information (Details) - USD ($)
3 Months Ended 9 Months Ended 12 Months Ended
Dec. 31, 2020
Sep. 30, 2021
Sep. 30, 2020
Sep. 30, 2021
Sep. 30, 2020
Dec. 31, 2020
Dec. 31, 2019
Dec. 31, 2018
Nov. 19, 2020
Line of Credit Facility [Line Items]                  
Revenue   $ 156,520,255 $ 128,840,991 $ 459,503,232 $ 360,664,280 $ 485,541,291 $ 145,894,832 $ 87,696,695  
Term Loan Agreement with CRG Servicing, LLC (CRG)                  
Line of Credit Facility [Line Items]                  
Term loan, maximum borrowing capacity                 $ 100,000,000.0
Term loan, amount drawn $ 40,000,000.0 52,800,000   52,800,000   40,000,000.0      
Transaction and financing costs netted 36,500,000                
Term loan, remaining borrowing capacity in year 2 35,000,000.0 $ 12,800,000   12,800,000   35,000,000.0     35,000,000.0
Term loan, remaining borrowing capacity in year 3 $ 25,000,000.0         25,000,000.0     $ 25,000,000.0
Term loan, financial covenants, minimum liquidity should be maintained       5,000,000.0   5,000,000.0      
Term loan, financial covenants, minimum annual consolidated revenue       395,000,000.0   395,000,000.0      
Revenue       $ 459,500,000   $ 485,400,000