Fair Value and Derivatives - Summary of Interest Rate Swaps on Recurring Basis Using Observable Market Inputs for Similar Assets or Liabilities (Details) - Designated as Hedging Instrument [Member] - Interest Rate Swaps [Member] - USD ($) $ in Millions |
May 31, 2026 |
May 31, 2025 |
|---|---|---|
| Other Current Liabilities [Member] | ||
| Derivative [Line Items] | ||
| Interest rate swaps | $ (0.6) | $ (0.4) |
| Other Noncurrent Liabilities [Member] | ||
| Derivative [Line Items] | ||
| Interest rate swaps | $ 0.0 | $ (1.3) |