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

Significant Accounting Policies - Property, Plant and Equipment ("PP&E") - Additional Information (Details)

v3.21.4
Significant Accounting Policies - Property, Plant and Equipment ("PP&E") - Additional Information (Details) - Software (Development in Process) - USD ($)
9 Months Ended 12 Months Ended
Sep. 30, 2021
Dec. 31, 2020
Dec. 31, 2019
Property, Plant and Equipment [Line Items]      
Property, Plant and Equipment, gross $ 2,272,560 $ 2,794,221 $ 1,114,166
Capitalized costs placed into service $ 2,411,278 $ 534,931