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Description of the Business, Basis of Presentation and Summary of Significant Accounting Policies - Stock-based Compensation (Details) - $ / shares
12 Months Ended
May 31, 2023
May 31, 2022
May 31, 2021
Organization, Consolidation and Presentation of Financial Statements [Abstract]      
Estimated fair value of stock options granted (in Dollars) $ 11.62 $ 8.04 $ 3.80
Assumptions:      
Expected dividend yield (percent) 1.90% 1.80% 2.90%
Expected stock price volatility (percent) 32.80% 31.90% 30.20%
Risk-free interest rate (percent) 3.80% 0.90% 0.20%
Expected life of options (in years) 5 years 5 years 4 years