Pension and Defined Contribution Plans - Reconciliation Fair Value Measurements (Details) - USD ($) $ in Millions |
12 Months Ended | |
|---|---|---|
Aug. 31, 2026 |
Aug. 31, 2025 |
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| Defined Benefit Plan Disclosure [Roll Forward] | ||
| Purchases | $ 32.0 | |
| Fair Value Asset Recurring Basis Still Held Unrealized Gain (Loss) Statement of Income Extensible List Not Disclosed Flag | Unrealized loss | |
| Level 3 | ||
| Defined Benefit Plan Disclosure [Roll Forward] | ||
| Beginning balance | $ 28.8 | 0.0 |
| Purchases | 0.0 | |
| Unrealized loss | (2.2) | (3.2) |
| Ending balance | $ 26.6 | $ 28.8 |
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- Definition Fair Value Asset Recurring Basis Still Held Unrealized Gain (Loss) Statement Of Income Extensible List Not Disclosed Flag No definition available.
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- Definition Amount of unrealized gain (loss) recognized in income from asset measured at fair value on recurring basis using unobservable input (level 3) and still held. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period. No definition available.
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- Definition Amount of purchases of financial instrument classified as an asset measured using unobservable inputs that reflect the entity's own assumption about the assumptions market participants would use in pricing. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Fair value of financial instrument classified as an asset measured using unobservable inputs that reflect the entity's own assumption about the assumptions market participants would use in pricing. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Details
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