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

Nature of business and summary of significant accounting policies, Restricted cash (FY) (Details)

v3.20.2
Nature of business and summary of significant accounting policies, Restricted cash (FY) (Details) - USD ($)
$ in Millions
Mar. 31, 2020
Dec. 31, 2019
Dec. 31, 2018
Restricted Cash [Abstract]      
Restricted cash   $ 0.2 $ 0.0
Business Credit Card [Member] | Maximum [Member]      
Restricted Cash [Abstract]      
Restricted cash $ 0.1 $ 0.2