Debt - Summary of Debt Outstanding (Detail) - USD ($) $ in Millions	Nov. 30, 2024	May 31, 2024
Debt Instrument [Line Items]
Total short-term borrowings	$ 115.0	$ 148.0
Total short-term borrowings and current maturities	115.0	148.0
Revolving Credit Facility
Debt Instrument [Line Items]
Total short-term borrowings	115.0	148.0
Total short-term borrowings and current maturities	$ 115.0	$ 148.0