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

Employee Benefit Plan (Details)

v3.24.0.1
Employee Benefit Plan (Details) - Employee Savings Plan - USD ($)
$ in Millions
12 Months Ended
May 31, 2023
May 31, 2022
Defined Contribution Plan Disclosure [Line Items]    
Qualified non-elective contribution, employer contribution, as a percent 3.00%  
Qualified non-elective contribution expense $ 0.1 $ 0.1