v3.26.1
Debt - Schedule of debt (Details) - USD ($)
$ in Millions
May 31, 2026
May 31, 2025
Debt Instrument [Line Items]    
Total Debt $ 80.5  
Carrying Value    
Debt Instrument [Line Items]    
Total Debt 80.5 $ 256.2
Less: lines of credit and current portion of long-term debt (5.5) (6.2)
Total long-term debt 75.0 250.0
Fair Value    
Debt Instrument [Line Items]    
Total Debt 80.5 256.2
Less: lines of credit and current portion of long-term debt (5.5) (6.2)
Total long-term debt 75.0 250.0
Unsecured Line of Credit | Line of Credit    
Debt Instrument [Line Items]    
Total Debt 5.5  
Unsecured Line of Credit | Line of Credit | Carrying Value    
Debt Instrument [Line Items]    
Total Debt 5.5 6.2
Unsecured Line of Credit | Line of Credit | Fair Value    
Debt Instrument [Line Items]    
Total Debt 5.5 6.2
Revolving Credit Facility | Revolving Loan | Line of Credit | Carrying Value    
Debt Instrument [Line Items]    
Total Debt 75.0 250.0
Revolving Credit Facility | Revolving Loan | Line of Credit | Fair Value    
Debt Instrument [Line Items]    
Total Debt $ 75.0 $ 250.0