v3.26.1
Income Taxes Income Taxes - Summary of Net Operating Loss and Tax Credits Carryforwards (Details) - USD ($)
$ in Millions
Feb. 28, 2026
Feb. 28, 2025
Tax Credit Carryforward [Line Items]    
Operating Loss Carryforwards $ 1,905.3  
Research and development tax credit [1] 476.0  
Minimum Taxes 206.7 $ 206.7
Tax Year 2029    
Tax Credit Carryforward [Line Items]    
Operating Loss Carryforwards 0.0  
Research and development tax credit [1] 0.0  
Minimum Taxes 1.1  
Tax Year 2030    
Tax Credit Carryforward [Line Items]    
Operating Loss Carryforwards 0.0  
Research and development tax credit [1] 0.0  
Minimum Taxes 107.8  
Tax Year 2031    
Tax Credit Carryforward [Line Items]    
Operating Loss Carryforwards 0.0  
Research and development tax credit [1] 0.0  
Minimum Taxes 71.7  
Tax Year 2032    
Tax Credit Carryforward [Line Items]    
Operating Loss Carryforwards 27.5  
Research and development tax credit [1] 0.0  
Minimum Taxes 22.2  
Tax Year 2033    
Tax Credit Carryforward [Line Items]    
Operating Loss Carryforwards 80.5  
Research and development tax credit [1] 111.8  
Minimum Taxes 0.2  
Tax Year 2034    
Tax Credit Carryforward [Line Items]    
Operating Loss Carryforwards 85.5  
Research and development tax credit [1] 124.1  
Minimum Taxes 0.1  
Tax Year 2035    
Tax Credit Carryforward [Line Items]    
Operating Loss Carryforwards 81.0  
Research and development tax credit [1] 52.1  
Minimum Taxes 3.6  
Tax Year 2036    
Tax Credit Carryforward [Line Items]    
Operating Loss Carryforwards 308.9  
Research and development tax credit [1] 39.8  
Minimum Taxes 0.0  
Tax Year 2037    
Tax Credit Carryforward [Line Items]    
Operating Loss Carryforwards 492.5  
Research and development tax credit [1] 23.7  
Minimum Taxes 0.0  
Tax Year 2038    
Tax Credit Carryforward [Line Items]    
Operating Loss Carryforwards 199.3  
Research and development tax credit [1] 17.3  
Minimum Taxes 0.0  
Tax Year 2039 [Member]    
Tax Credit Carryforward [Line Items]    
Operating Loss Carryforwards 13.1  
Research and development tax credit [1] 14.6  
Minimum Taxes 0.0  
Tax Year 2040    
Tax Credit Carryforward [Line Items]    
Operating Loss Carryforwards 3.3  
Research and development tax credit [1] 12.9  
Minimum Taxes 0.0  
Tax Year 2041    
Tax Credit Carryforward [Line Items]    
Operating Loss Carryforwards 0.0  
Research and development tax credit [1] 7.7  
Minimum Taxes 0.0  
Tax Year 2042    
Tax Credit Carryforward [Line Items]    
Operating Loss Carryforwards 0.0  
Research and development tax credit [1] 11.0  
Minimum Taxes 0.0  
Tax Year 2043    
Tax Credit Carryforward [Line Items]    
Operating Loss Carryforwards 181.6  
Research and development tax credit [1] 13.6  
Minimum Taxes 0.0  
Tax Year 2044    
Tax Credit Carryforward [Line Items]    
Operating Loss Carryforwards 0.0  
Research and development tax credit [1] 12.8  
Minimum Taxes 0.0  
Tax Year 2045    
Tax Credit Carryforward [Line Items]    
Operating Loss Carryforwards 0.0  
Research and development tax credit [1] 8.2  
Minimum Taxes 0.0  
Tax Year 2046    
Tax Credit Carryforward [Line Items]    
Operating Loss Carryforwards 0.0  
Research and development tax credit [1] 5.2  
Minimum Taxes 0.0  
Tax Year, Indefinite    
Tax Credit Carryforward [Line Items]    
Operating Loss Carryforwards 432.1  
Research and development tax credit [1] 21.2  
Minimum Taxes $ 0.0  
[1] Includes federal, provincial and state balances.