Annual report [Section 13 and 15(d), not S-K Item 405]

Income Taxes (Narrative) (Details)

v3.25.2
Income Taxes (Narrative) (Details) - USD ($)
$ in Millions
 12 Months Ended
May 31, 2025
May 31, 2024
Income Tax Contingency [Line Items]    
NOL carry forwards $ 28.9 $ 5.0
Reserve for uncertain tax positions 108.6 86.4
Impact uncertain tax benefits, if recognized, on effective income tax rate 100.6 $ 86.4
Netted in the deferred tax 8.0  
Long-Term Debt [Member]    
Income Tax Contingency [Line Items]    
Reserve for uncertain tax positions 100.6  
Federal [Member]    
Income Tax Contingency [Line Items]    
NOL carry forwards $ 16.0  
Federal [Member] | Minimum [Member]    
Income Tax Contingency [Line Items]    
NOL carry forwards, Expiration date May 31, 2028  
Federal [Member] | Maximum [Member]    
Income Tax Contingency [Line Items]    
NOL carry forwards, Expiration date May 31, 2037  
State [Member]    
Income Tax Contingency [Line Items]    
NOL carry forwards $ 11.7  
State [Member] | Minimum [Member]    
Income Tax Contingency [Line Items]    
NOL carry forwards, Expiration date May 31, 2026  
State [Member] | Maximum [Member]    
Income Tax Contingency [Line Items]    
NOL carry forwards, Expiration date May 31, 2044  
Foreign [Member]    
Income Tax Contingency [Line Items]    
NOL carry forwards $ 5.3