v3.26.1
Capital Stock and Stock-Based Awards - Schedule of employee stock purchase plan activity (Details) - Employee Stock - $ / shares
12 Months Ended
May 31, 2026
May 31, 2025
May 31, 2024
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Shares issued 88,428 109,015 79,458
Weighted average purchase price per share (in dollars per share) $ 23.61 $ 21.85 $ 32.38