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Intangibles and Other Assets, Net - Identifiable Intangible and Other Assets (Detail) - USD ($) $ in Millions | Aug. 31, 2025 | Aug. 31, 2024
--- | --- | ---
Intangibles and Other Assets by Major Class [Line Items] |  |
Finite-Lived Intangible Assets, Net, Total | $ 24.9 | $ 31.5
Intangible assets not subject to amortization | 2.3 | 2.3
Prepaid and other assets | 44.3 | 52.0
Operating lease ROU assets | $ 84.2 | $ 65.1
Operating Lease, Right-of-Use Asset, Statement of Financial Position [Extensible Enumeration] | Total Intangible and other assets, net | Total Intangible and other assets, net
Nonqualified savings plan investments | $ 59.4 | $ 54.5
Debt issuance costs, net | 7.2 | 4.8
Deferred tax assets | 41.9 | 34.2
Total Intangible and other assets, net | 264.2 | 244.4
Customer and supplier relationships |  |
Intangibles and Other Assets by Major Class [Line Items] |  |
Finite lived intangible assets gross | 87.5 | 87.5
Accumulated amortization | (74.8) | (72.1)
Other Intangible Assets |  |
Intangibles and Other Assets by Major Class [Line Items] |  |
Finite lived intangible assets gross | 42.3 | 43.3
Accumulated amortization | $ (30.1) | $ (27.2)

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