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Commitments and Contingencies - Narrative (Details) - USD ($) $ in Millions | 12 Months Ended |  |
--- | --- | --- | ---
May 31, 2026 | Feb. 20, 2026 | May 31, 2025
Operating Leased Assets [Line Items] |  |  |
Gain contingency, unrecorded amount |  | $ 9.0 |
Former gain contingency, recognized in current period | $ 2.8 |  |
Insurance settlements receivable | 0.6 |  |
Standby Letters of Credit |  |  |
Operating Leased Assets [Line Items] |  |  |
Open standby letters of credit | $ (5.4) |  | $ (4.0)
Term of debt instrument | 1 year |  |

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