Derivative Instruments and Hedging Activities - Schedule of Summary of Derivative Hedges (Detail) $ in Thousands	3 Months Ended
	Aug. 31, 2020 USD ($)
Commodity Contracts | Minimum [Member] | Derivatives Not Designated As Hedging Instruments
Derivative [Line Items]
Notional Amount	$ 21,371
Maturity Date	2020-09
Commodity Contracts | Maximum | Derivatives Not Designated As Hedging Instruments
Derivative [Line Items]
Maturity Date	2021-12
Foreign Currency Exchange Contracts | Minimum [Member] | Derivatives Not Designated As Hedging Instruments
Derivative [Line Items]
Notional Amount	$ 4,282
Maturity Date	2020-09
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	$ 50,446
Cash Flow Hedges | Commodity Contracts | Minimum [Member]
Derivative [Line Items]
Maturity Date	2020-09
Cash Flow Hedges | Commodity Contracts | Maximum
Derivative [Line Items]
Maturity Date	2021-12