v3.26.1
Description of the Business, Basis of Presentation and Summary of Significant Accounting Policies - Stock-based Compensation (Details) - USD ($)
$ / shares in Units, $ in Millions
12 Months Ended
May 31, 2026
May 31, 2025
May 31, 2024
Organization, Consolidation and Presentation of Financial Statements [Abstract]      
Estimated fair value of stock options granted (in Dollars) $ 6.91 $ 11.92 $ 11.53
Assumptions:      
Expected dividend yield (percent) 3.70% 2.20% 2.20%
Expected stock price volatility (percent) 43.90% 38.80% 37.40%
Risk-free interest rate (percent) 3.90% 4.30% 4.70%
Expected life of options (in years) 6 years 5 years 4 years
Allowance for doubtful accounts receivable $ 11.0 $ 11.0