Quarterly report pursuant to Section 13 or 15(d)

Employee Benefit Plan (Detail)

v3.21.1
Employee Benefit Plan (Detail) - USD ($)
3 Months Ended 9 Months Ended
Feb. 28, 2021
Feb. 29, 2020
Feb. 28, 2021
Feb. 29, 2020
Retirement Benefits [Abstract]        
Qualified non-elective contribution, employer contribution, as a percent     3.00%  
Qualified non-elective contribution expense $ 300,000 $ 30,000 $ 500,000 $ 75,000