Debt - Schedule of Debt (Details) - USD ($) $ in Millions	Aug. 31, 2025	May 31, 2025	Aug. 31, 2024
Debt Instrument [Line Items]
Total Debt	$ 331.2	$ 256.2	$ 231.1
Less lines of credit, short-term debt and current portion of long-term debt	(6.2)	(6.2)	(6.1)
Total long-term debt	325.0	250.0	225.0
Revolving Credit Facility
Debt Instrument [Line Items]
Total Debt	$ 325.0	250.0	$ 225.0
Debt, Weighted Average Interest Rate	6.10%		6.80%
Line of Credit \| Unsecured Debt
Debt Instrument [Line Items]
Total Debt	$ 6.2	$ 6.2	$ 6.1

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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+ Details