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

Nature of business and summary of significant accounting policies, Accounts receivable and allowance for doubtful accounts (Details)

v3.20.1
Nature of business and summary of significant accounting policies, Accounts receivable and allowance for doubtful accounts (Details) - USD ($)
$ in Millions
Dec. 31, 2019
Dec. 31, 2018
Accounts receivable and allowance for doubtful accounts [Abstract]    
Allowance for doubtful accounts   $ 0.0
Maximum [Member]    
Accounts receivable and allowance for doubtful accounts [Abstract]    
Allowance for doubtful accounts $ 0.1