v3.26.1
Stock-Based Compensation - Schedule of Assumptions Used to Determine Grant Date Fair Value of Special PSAs (Detail) - Special PSAs
12 Months Ended
May 31, 2026
May 31, 2024
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]    
Dividend yield 1.19% 1.05%
Expected volatility 38.00% 33.90%
Risk-free interest rate 3.68% 4.52%