Debt - Schedule of Debt (Details) - USD ($) $ in Millions	Feb. 28, 2025	May 31, 2024	Feb. 29, 2024
Debt Instrument [Line Items]
Total Debt	$ 280.8	$ 6.0	$ 31.5
Less lines of credit, short-term debt and current portion of long-term debt	(5.8)	(6.0)	(31.5)
Total long-term debt	275.0	0.0	0.0
Revolving Credit Facility
Debt Instrument [Line Items]
Total Debt	275.0	0.0	$ 25.0
Debt, Weighted Average Interest Rate			6.80%
Line of Credit | Unsecured Debt
Debt Instrument [Line Items]
Total Debt	$ 5.8	$ 6.0	$ 6.5