Income Taxes Income Taxes - Reconciliation of Unrecognized Tax Benefits (Details) - USD ($) $ in Thousands |
12 Months Ended | ||
|---|---|---|---|
May 31, 2025 |
May 31, 2024 |
May 31, 2023 |
|
| Reconciliation of Unrecognized Tax Benefits, Excluding Amounts Pertaining to Examined Tax Returns [Roll Forward] | |||
| Unrecognized tax benefits, beginning balance | $ 0 | $ 464 | $ 464 |
| Decrease in gross amounts of tax positions related to prior years due to U.S. tax reform | 0 | 0 | 0 |
| Decrease due to lapse in statute of limitations | 0 | (464) | 0 |
| Unrecognized tax benefits, ending balance | $ 0 | $ 0 | $ 464 |