Equity Compensation Plans and Other Incentive Compensation - Schedule of Share-based Compensation Arrangement by Share-based Payment Award, Options Intrinsic Value (Detail) - USD ($) $ in Thousands |
12 Months Ended | ||
|---|---|---|---|
May 31, 2025 |
May 31, 2024 |
May 31, 2023 |
|
| Aggregate intrinsic value of options outstanding | $ 113 | $ 55 | $ 6,154 |
| Aggregate intrinsic value of options exercisable | 0 | 5 | 42 |
| Aggregate intrinsic value of options exerised | $ 46 | $ 37 | $ 73 |