Derivative Instruments and Hedging Activities - Schedule of Summary of Derivative Hedges (Detail) $ in Thousands	6 Months Ended
	Nov. 30, 2020 USD ($)
Commodity Contracts | Minimum [Member] | Derivatives Not Designated As Hedging Instruments
Derivative [Line Items]
Notional Amount	$ 51,909
Maturity Date	2020-12
Commodity Contracts | Maximum | Derivatives Not Designated As Hedging Instruments
Derivative [Line Items]
Maturity Date	2022-04
Foreign Currency Exchange Contracts | Minimum [Member] | Derivatives Not Designated As Hedging Instruments
Derivative [Line Items]
Notional Amount	$ 9,068
Maturity Date	2020-12
Foreign Currency Exchange Contracts | Maximum | Derivatives Not Designated As Hedging Instruments
Derivative [Line Items]
Maturity Date	2021-07
Cash Flow Hedges | Commodity Contracts
Derivative [Line Items]
Notional Amount	$ 73,689
Cash Flow Hedges | Commodity Contracts | Minimum [Member]
Derivative [Line Items]
Maturity Date	2020-12
Cash Flow Hedges | Commodity Contracts | Maximum
Derivative [Line Items]
Maturity Date	2022-03