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Debt (Tables)
3 Months Ended
Aug. 31, 2023
Debt Disclosure [Abstract]  
Schedule of Debt
The following table summarizes the carrying value of the Company's debt as of the dates indicated:
 August 31, 2023May 31, 2023August 31, 2022
US Revolving Credit Agreement$— $— $— 
Unsecured lines of credit5.9 6.0 6.3 
Total debt$5.9 $6.0 $6.3 
Less lines of credit, short-term debt and current portion of long-term debt(5.9)(6.0)(6.3)
Total long-term debt$ $ $