Derivative Financial Instruments and Hedging Activities - Schedule of Summary of Derivative Hedges (Detail) - USD ($) $ in Millions	12 Months Ended
	May 31, 2026	May 31, 2025	May 31, 2024
Derivative [Line Items]
Notional Amount	$ 9.1	$ 0.7	$ (0.4)
Commodity Contracts \| Derivatives Not Designated As Hedging Instruments
Derivative [Line Items]
Notional Amount	$ 27.5	$ 16.4
Commodity Contracts \| Minimum \| Derivatives Not Designated As Hedging Instruments
Derivative [Line Items]
Maturity Date	Jun. 30, 2026	Jun. 30, 2025
Commodity Contracts \| Maximum \| Derivatives Not Designated As Hedging Instruments
Derivative [Line Items]
Maturity Date	Apr. 30, 2028	Sep. 30, 2026
Foreign Currency Exchange Contracts \| Derivatives Not Designated As Hedging Instruments
Derivative [Line Items]
Notional Amount	$ 666.9	$ (3.6)
Maturity Date		Jun. 30, 2025
Foreign Currency Exchange Contracts \| Minimum \| Derivatives Not Designated As Hedging Instruments
Derivative [Line Items]
Maturity Date	Jun. 30, 2026
Foreign Currency Exchange Contracts \| Maximum \| Derivatives Not Designated As Hedging Instruments
Derivative [Line Items]
Maturity Date	Sep. 30, 2026
Cash Flow Hedges \| Commodity Contracts
Derivative [Line Items]
Notional Amount	$ 33.2	$ (5.6)
Cash Flow Hedges \| Commodity Contracts \| Minimum
Derivative [Line Items]
Maturity Date	Jun. 30, 2026	Jun. 30, 2025
Cash Flow Hedges \| Commodity Contracts \| Maximum
Derivative [Line Items]
Maturity Date	Sep. 30, 2027	Sep. 30, 2026
Cash Flow Hedges \| Foreign Currency Exchange Contracts
Derivative [Line Items]
Notional Amount	$ 2.1	$ 10.3
Cash Flow Hedges \| Foreign Currency Exchange Contracts \| Minimum
Derivative [Line Items]
Maturity Date	Jun. 30, 2026	Jun. 30, 2025
Cash Flow Hedges \| Foreign Currency Exchange Contracts \| Maximum
Derivative [Line Items]
Maturity Date	Sep. 30, 2026	Mar. 31, 2026
Cash Flow Hedges \| Interest Rate Contracts
Derivative [Line Items]
Notional Amount	$ 0.4
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