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Earnings Per Share - Narrative (Details) - shares
shares in Millions
3 Months Ended
Aug. 31, 2024
Aug. 31, 2023
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]    
Dilutive shares (in shares) 6.5 13.3
Antidilutive shares (in shares) 18.0  
Convertible Debt    
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]    
Antidilutive shares (in shares) 8.3  
Series E Preferred Stock    
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]    
Antidilutive shares (in shares) 2.1  
Series F Preferred Stock    
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]    
Antidilutive shares (in shares) 7.6  
Warrants    
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]    
Antidilutive shares (in shares) 12.3