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

Employee Benefit Plan - Additional Information (Detail)

v3.21.2
Employee Benefit Plan - Additional Information (Detail) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2020
Dec. 31, 2019
Defined Benefit Plan Disclosure [Line Items]    
Defined benefit plan contributions by employer $ 0 $ 0