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Debt - Schedule of Debt (Details) - USD ($) $ in Millions	Feb. 28, 2026	May 31, 2025	Feb. 28, 2025
Debt Instrument [Line Items]
Total Debt	$ 5.6	$ 256.2	$ 280.8
Less lines of credit, short-term debt and current portion of long-term debt	(5.6)	(6.2)	(5.8)
Total long-term debt	0.0	250.0	275.0
Revolving Credit Facility
Debt Instrument [Line Items]
Total Debt	0.0	250.0	$ 275.0
Debt, Weighted Average Interest Rate			6.10%
Line of Credit | Unsecured Debt
Debt Instrument [Line Items]
Total Debt	$ 5.6	$ 6.2	$ 5.8

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Total of the portions of the carrying amounts as of the balance sheet date of lines of credit and short-term debt and long-term debt which are scheduled to be repaid within one year or the normal operating cycle, if longer.

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