Derivative Financial Instruments and Hedging Activities - Schedule of Fair Value of Derivative Instruments (Detail) - USD ($) $ in Thousands	Feb. 28, 2026	May 31, 2025
Derivative [Line Items]
Fair Value of Assets	$ 1,003	$ 1,042
Fair Value of Liabilities	783	7,461
Derivatives Designated As Hedging Instruments
Derivative [Line Items]
Fair Value of Assets	941	961
Fair Value of Liabilities	291	86
Derivatives Designated As Hedging Instruments \| Commodity Contracts \| Receivables
Derivative [Line Items]
Fair Value of Assets	757	478
Derivatives Designated As Hedging Instruments \| Commodity Contracts \| Other Liabilities
Derivative [Line Items]
Fair Value of Liabilities	6	35
Derivatives Designated As Hedging Instruments \| Foreign Currency Exchange Contracts \| Receivables
Derivative [Line Items]
Fair Value of Assets	184	483
Derivatives Not Designated As Hedging Instruments
Derivative [Line Items]
Fair Value of Assets	62	81
Fair Value of Liabilities	492	7,375
Derivatives Not Designated As Hedging Instruments \| Commodity Contracts \| Receivables
Derivative [Line Items]
Fair Value of Assets	62	81
Accounts Payable \| Derivatives Designated As Hedging Instruments \| Commodity Contracts
Derivative [Line Items]
Fair Value of Liabilities	285	51
Accounts Payable \| Derivatives Not Designated As Hedging Instruments \| Commodity Contracts
Derivative [Line Items]
Fair Value of Liabilities	153	15
Accounts Payable \| Derivatives Not Designated As Hedging Instruments \| Foreign Currency Exchange Contracts
Derivative [Line Items]
Fair Value of Liabilities	$ 339	$ 7,360