Derivative Financial Instruments and Hedging Activities - Schedule of Summary of Derivative Hedges (Detail) - USD ($) $ in Millions	3 Months Ended		12 Months Ended
	Aug. 31, 2026	Aug. 31, 2025	May 31, 2026
Derivative [Line Items]
Notional Amount	$ 0.7	$ 2.6
Commodity Contracts \| Derivatives Not Designated As Hedging Instruments
Derivative [Line Items]
Notional Amount	$ 39.4		$ 27.5
Commodity Contracts \| Minimum \| Derivatives Not Designated As Hedging Instruments
Derivative [Line Items]
Maturity Date	Sep. 30, 2026		Jun. 30, 2026
Commodity Contracts \| Maximum \| Derivatives Not Designated As Hedging Instruments
Derivative [Line Items]
Maturity Date	Jul. 31, 2028		Apr. 30, 2028
Foreign Currency Exchange Contracts \| Derivatives Not Designated As Hedging Instruments
Derivative [Line Items]
Notional Amount	$ 33.1		$ 666.9
Foreign Currency Exchange Contracts \| Minimum \| Derivatives Not Designated As Hedging Instruments
Derivative [Line Items]
Maturity Date	Sep. 30, 2026		Jun. 30, 2026
Foreign Currency Exchange Contracts \| Maximum \| Derivatives Not Designated As Hedging Instruments
Derivative [Line Items]
Maturity Date	Jan. 31, 2028		Sep. 30, 2026
Cash Flow Hedges \| Commodity Contracts
Derivative [Line Items]
Notional Amount	$ 57.7		$ 33.2
Cash Flow Hedges \| Commodity Contracts \| Minimum
Derivative [Line Items]
Maturity Date	Sep. 30, 2026		Jun. 30, 2026
Cash Flow Hedges \| Commodity Contracts \| Maximum
Derivative [Line Items]
Maturity Date	Sep. 30, 2027		Sep. 30, 2027
Cash Flow Hedges \| Foreign Currency Exchange Contracts
Derivative [Line Items]
Notional Amount	$ 0.2		$ 2.1
Maturity Date	Sep. 30, 2026
Cash Flow Hedges \| Foreign Currency Exchange Contracts \| Minimum
Derivative [Line Items]
Maturity Date			Jun. 30, 2026
Cash Flow Hedges \| Foreign Currency Exchange Contracts \| Maximum
Derivative [Line Items]
Maturity Date			Sep. 30, 2026
Cash Flow Hedges \| Interest Rate Contracts
Derivative [Line Items]
Notional Amount	$ 0.1		$ 0.4
Maturity Date	Sep. 30, 2026
Cash Flow Hedges \| Interest Rate Contracts \| Minimum
Derivative [Line Items]
Maturity Date			May 31, 2026
Cash Flow Hedges \| Interest Rate Contracts \| Maximum
Derivative [Line Items]
Maturity Date			Sep. 30, 2026