Debt - Summary of Debt Outstanding (Detail) - USD ($) $ in Millions	Feb. 29, 2024	May 31, 2023
Debt Instrument [Line Items]
Total short-term borrowings	$ 147.2	$ 2.8
Total short-term borrowings	147.2	22.8
Total long-term borrowings	0.0	0.0
Total	147.2	22.8
Revolving Credit Facility
Debt Instrument [Line Items]
Total short-term borrowings	147.2	0.0
Total short-term borrowings	147.2	0.0
Current maturities of Term Loan Facility with the Former Parent
Debt Instrument [Line Items]
Total short-term borrowings	0.0	20.0
Other
Debt Instrument [Line Items]
Total short-term borrowings	$ 0.0	$ 2.8