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

Earnings (Loss) per Member Unit (Details)

v3.21.4
Earnings (Loss) per Member Unit (Details) - shares
 9 Months Ended 12 Months Ended
Sep. 30, 2021
Sep. 30, 2020
Dec. 31, 2020
Dec. 31, 2019
Dec. 31, 2018
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]          
Potential Member Units were excluded from Diluted Loss per Member Unit, as their effect would be anti-dilutive 16,119,843 17,845,242 18,678,593 18,713,992 19,751,492
Class B-1 Unvested Units          
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]          
Potential Member Units were excluded from Diluted Loss per Member Unit, as their effect would be anti-dilutive 2,000,000 4,000,000 4,000,000 6,000,000 8,000,000
Class B-2 Unvested Units          
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]          
Potential Member Units were excluded from Diluted Loss per Member Unit, as their effect would be anti-dilutive 4,054,054 4,054,054 4,054,054 4,054,054 4,054,054
Class B-3 Unvested Units          
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]          
Potential Member Units were excluded from Diluted Loss per Member Unit, as their effect would be anti-dilutive 5,647,438 5,647,438 5,647,438 5,647,438 5,647,438
Class C Unvested Units          
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]          
Potential Member Units were excluded from Diluted Loss per Member Unit, as their effect would be anti-dilutive 3,560,000 4,143,750 4,118,750 3,012,500 2,050,000
Class D Warrants          
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]          
Potential Member Units were excluded from Diluted Loss per Member Unit, as their effect would be anti-dilutive 858,351   858,351 0 0