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Net Loss Per Share - Schedule of Anti-Dilutive Effect Regardless of Net Income or Loss (Details) - shares
shares in Millions
3 Months Ended
Jun. 30, 2026
Jun. 30, 2025
Anti-dilutive shares issuable [Line Items]    
Anti-dilutive shares issuable (in shares) 18.9 20.4
Share purchase options    
Anti-dilutive shares issuable [Line Items]    
Anti-dilutive shares issuable (in shares) 7.7 17.0
Restricted share units    
Anti-dilutive shares issuable [Line Items]    
Anti-dilutive shares issuable (in shares) 0.0 0.1
Other issuable shares    
Anti-dilutive shares issuable [Line Items]    
Anti-dilutive shares issuable (in shares) 11.2 3.3