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

Equity Awards and Warrants - Equity Incentive Plan (Details)

v3.23.2
Equity Awards and Warrants - Equity Incentive Plan (Details)
shares in Millions, $ in Millions
3 Months Ended 9 Months Ended 12 Months Ended
May 31, 2023
shares
Aug. 31, 2022
shares
Feb. 28, 2023
USD ($)
Feb. 28, 2022
USD ($)
Feb. 28, 2023
USD ($)
plan
Feb. 28, 2022
USD ($)
May 31, 2022
plan
shares
May 23, 2022
shares
Feb. 21, 2022
shares
May 31, 2021
shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                    
Number of active plans | plan         1   1      
Number of inactive plans | plan         1   1      
General and Administrative Expenses                    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                    
Stock based compensation | $     $ 0.4 $ (0.4) $ 3.5 $ 4.2        
2012 Equity Incentive Plan                    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                    
Number of shares authorized for issuance 34.3                  
Increase in number of shares authorized   350.0         350.0      
Shares reallocated to be used for general purposes 22.0             7.0 15.0  
Percentage of share outstanding 1.00%           1.00%      
Shares available for future stock-based grants 3.9           3.9     56.3
2012 Equity Incentive Plan | Management, Employees And Consultants                    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                    
Shares available for future stock-based grants   22.0         22.0