Derivative Financial Instruments and Hedging Activities - Schedule of Fair Value of Derivative Instruments (Detail) - USD ($) $ in Thousands	Feb. 28, 2025	May 31, 2024
Derivative [Line Items]
Fair Value of Assets	$ 1,334	$ 920
Fair Value of Liabilities	1,348	1,421
Derivatives Designated As Hedging Instruments
Derivative [Line Items]
Fair Value of Assets	1,030	601
Fair Value of Liabilities	74	104
Derivatives Designated As Hedging Instruments | Commodity Contracts | Receivables
Derivative [Line Items]
Fair Value of Assets	1,030	601
Derivatives Designated As Hedging Instruments | Commodity Contracts | Other Liabilities
Derivative [Line Items]
Fair Value of Liabilities		21
Derivatives Not Designated As Hedging Instruments
Derivative [Line Items]
Fair Value of Assets	304	319
Fair Value of Liabilities	1,274	1,317
Derivatives Not Designated As Hedging Instruments | Commodity Contracts | Receivables
Derivative [Line Items]
Fair Value of Assets	304	319
Accounts Payable | Derivatives Designated As Hedging Instruments | Commodity Contracts
Derivative [Line Items]
Fair Value of Liabilities		83
Accounts Payable | Derivatives Designated As Hedging Instruments | Foreign Currency Exchange Contracts
Derivative [Line Items]
Fair Value of Liabilities	74
Accounts Payable | Derivatives Not Designated As Hedging Instruments | Commodity Contracts
Derivative [Line Items]
Fair Value of Liabilities	54	69
Accounts Payable | Derivatives Not Designated As Hedging Instruments | Foreign Currency Exchange Contracts
Derivative [Line Items]
Fair Value of Liabilities	$ 1,220	$ 1,248