Derivative Instruments and Hedging Activities - Schedule of Derivatives Designated as Cash Flow Hedging Instruments (Detail) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Feb. 28, 2021	Feb. 29, 2020	Feb. 28, 2021	Feb. 29, 2020
Derivative [Line Items]
Gain (Loss) Recognized in OCI	$ 37,380	$ (394)	$ 54,143	$ (6,369)
Gain (Loss) Reclassified from AOCI into Net Earnings	1,582	(3,193)	(4,445)	(9,859)
Commodity Contracts
Derivative [Line Items]
Gain (Loss) Recognized in OCI	37,380	(394)	54,143	(6,043)
Commodity Contracts | Cost of Sales
Derivative [Line Items]
Gain (Loss) Reclassified from AOCI into Net Earnings	2,217	(3,464)	(3,113)	(9,984)
Interest Rate Contract
Derivative [Line Items]
Gain (Loss) Recognized in OCI				(326)
Interest Rate Contract | Interest Expense
Derivative [Line Items]
Gain (Loss) Reclassified from AOCI into Net Earnings	$ (635)	$ 271	$ (1,332)	144
Foreign Currency Exchange Contracts | Miscellaneous Income, Net
Derivative [Line Items]
Gain (Loss) Reclassified from AOCI into Net Earnings				$ (19)