Derivative Financial Instruments and Hedging Activities - Schedule of Derivatives Designated as Cash Flow and Net Investment Hedges Hedging Instruments (Detail) - USD ($) $ in Millions	3 Months Ended				9 Months Ended
	Feb. 28, 2026	Feb. 28, 2025	Nov. 30, 2024	Aug. 31, 2024	Feb. 28, 2026	Feb. 28, 2025
Derivative [Line Items]
Gain (Loss) Recognized in OCI	$ 0.7	$ (3.3)			$ 2.5	$ (8.6)
SG&A	77.5	54.6			216.3	172.7
Interest expense, net	2.1	1.4			7.7	6.1
Miscellaneous income (expense), net	9.8	0.2			9.9	(1.9)
Net earnings (loss)	10.8	12.1	$ 16.1	$ 32.2	70.9	60.4
Reclassification out of Accumulated Other Comprehensive Income
Derivative [Line Items]
Net earnings (loss)	1.0	(0.9)			1.7	(6.2)
Cash Flow Hedges
Derivative [Line Items]
Gain (Loss) Recognized in OCI	2.0	(3.3)			4.5	(8.6)
Cash Flow Hedges | Reclassification out of Accumulated Other Comprehensive Income
Derivative [Line Items]
Net earnings (loss)	1.0	(0.9)			1.7	(6.2)
Net Investment Hedges
Derivative [Line Items]
Gain (Loss) Recognized in OCI	(1.3)				(2.0)
Net Investment Hedges | Reclassification out of Accumulated Other Comprehensive Income
Derivative [Line Items]
Net earnings (loss)	0.0				0.0
Commodity Contracts | Cash Flow Hedges
Derivative [Line Items]
Gain (Loss) Recognized in OCI	1.3	(3.3)			2.9	(8.4)
Commodity Contracts | Cash Flow Hedges | Reclassification out of Accumulated Other Comprehensive Income
Derivative [Line Items]
Cost of goods sold	0.3	(0.7)			0.3	(5.9)
Foreign Currency Exchange Contracts | Cash Flow Hedges
Derivative [Line Items]
Gain (Loss) Recognized in OCI	0.6	(0.0)			1.4	(0.2)
Foreign Currency Exchange Contracts | Cash Flow Hedges | Reclassification out of Accumulated Other Comprehensive Income
Derivative [Line Items]
Cost of goods sold	0.4	$ (0.2)			0.9	$ (0.3)
Foreign Currency Exchange Contracts | Cash Flow Hedges
Derivative [Line Items]
Gain (Loss) Recognized in OCI	0.0				0.0
Foreign Currency Exchange Contracts | Cash Flow Hedges | Reclassification out of Accumulated Other Comprehensive Income
Derivative [Line Items]
SG&A	0.1				0.2
Interest Rate Contracts | Cash Flow Hedges
Derivative [Line Items]
Gain (Loss) Recognized in OCI	0.1				0.2
Interest Rate Contracts | Cash Flow Hedges | Reclassification out of Accumulated Other Comprehensive Income
Derivative [Line Items]
Interest expense, net	0.2				0.3
Cross-currency Swap | Net Investment Hedges
Derivative [Line Items]
Gain (Loss) Recognized in OCI	(1.3)				(2.0)
Cross-currency Swap | Net Investment Hedges | Reclassification out of Accumulated Other Comprehensive Income
Derivative [Line Items]
Miscellaneous income (expense), net	$ 0.0				$ 0.0