Derivative Financial Instruments and Hedging Activities - Schedule of Fair Value of Derivative Instruments (Detail) - USD ($) $ in Thousands	Nov. 30, 2024	May 31, 2024
Derivative [Line Items]
Fair Value of Assets	$ 877	$ 920
Fair Value of Liabilities	778	1,421
Derivatives Designated As Hedging Instruments
Derivative [Line Items]
Fair Value of Assets	803	601
Fair Value of Liabilities	44	104
Derivatives Designated As Hedging Instruments | Commodity Contracts | Receivables
Derivative [Line Items]
Fair Value of Assets	762	601
Derivatives Designated As Hedging Instruments | Commodity Contracts | Other Assets
Derivative [Line Items]
Fair Value of Assets	41
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	74	319
Fair Value of Liabilities	734	1,317
Derivatives Not Designated As Hedging Instruments | Commodity Contracts | Receivables
Derivative [Line Items]
Fair Value of Assets	74	319
Accounts Payable | Derivatives Designated As Hedging Instruments | Commodity Contracts
Derivative [Line Items]
Fair Value of Liabilities	44	83
Accounts Payable | Derivatives Not Designated As Hedging Instruments | Commodity Contracts
Derivative [Line Items]
Fair Value of Liabilities	45	69
Accounts Payable | Derivatives Not Designated As Hedging Instruments | Foreign Currency Exchange Contracts
Derivative [Line Items]
Fair Value of Liabilities	$ 689	$ 1,248