Leases (Supplemental Balance Sheet Information Related to Leases) (Details) - USD ($) $ in Millions |
May 31, 2026 |
May 31, 2025 |
||
|---|---|---|---|---|
| Leases [Abstract] | ||||
| Operating lease ROU assets, net of accumulated amortization | $ 63.9 | $ 63.8 | ||
| Operating lease liabilities, current | [1] | $ 22.0 | $ 22.5 | |
| Operating Lease, Liability, Current, Statement of Financial Position [Extensible Enumeration] | Other Liabilities, Current | Other Liabilities, Current | ||
| Operating lease, liabilities, noncurrent | $ 52.2 | $ 55.5 | ||
| Weighted average remaining lease term (in years) | 5 years 1 month 6 days | 4 years | ||
| Weighted average discount rate | 4.13% | 3.73% | ||
| ||||