Other Comprehensive Income (Loss) - Summary of Changes in Accumulated Other Comprehensive Income (Loss) (Detail) - USD ($) $ in Millions		3 Months Ended
		Aug. 31, 2025	Aug. 31, 2024
Accumulated Other Comprehensive Income Loss [Line Items]
Balance		$ 1,197.9	$ 1,117.5
Income tax effect		0.0	0.0
Balance		1,233.2	1,143.2
Foreign Currency Translation
Accumulated Other Comprehensive Income Loss [Line Items]
Balance		(10.7)	(11.9)
Other comprehensive income (loss) before reclassifications		1.1	2.1
Reclassification adjustments to net earnings	[1]	0.0	0.0
Income tax effect		0.0	0.0
Balance		(9.6)	(9.8)
Pension Liability Adjustment
Accumulated Other Comprehensive Income Loss [Line Items]
Balance		7.3	8.4
Other comprehensive income (loss) before reclassifications		0.0	0.0
Reclassification adjustments to net earnings	[1]	0.0	0.0
Income tax effect		0.0	0.0
Balance		7.3	8.4
Cash Flow Hedges
Accumulated Other Comprehensive Income Loss [Line Items]
Balance		(0.6)	(2.6)
Other comprehensive income (loss) before reclassifications		0.4	(2.5)
Reclassification adjustments to net earnings	[1]	(0.4)	2.6
Income tax effect		0.0	0.0
Balance		(0.6)	(2.5)
AOCI
Accumulated Other Comprehensive Income Loss [Line Items]
Balance		(4.0)	(6.1)
Other comprehensive income (loss) before reclassifications		1.5	(0.4)
Reclassification adjustments to net earnings	[1]	(0.4)	2.6
Income tax effect		0.0	0.0
Balance		$ (2.9)	$ (3.9)

[1] The consolidated statement of earnings classification of amounts reclassified to net income include: a. Cash flow hedges – See the disclosure in “Note 13 – Derivative Financial Instruments and Hedging Activities”.