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

Basis of Presentation and Summary of Significant Accounting Policies - Offering costs (Details)

v3.21.2
Basis of Presentation and Summary of Significant Accounting Policies - Offering costs (Details)
$ in Millions
12 Months Ended
Dec. 31, 2020
USD ($)
General and administrative  
Subsidiary, Sale of Stock [Line Items]  
Offering costs $ 3.6