v3.26.1
Consolidated Balance Sheets Detail - Intangible Assets (Details) - USD ($)
$ in Millions
 12 Months Ended
Feb. 28, 2026
Feb. 28, 2025
Feb. 29, 2024
Intangible Asset, Finite-Lived [Line Items]      
Cost $ 175.5 $ 180.6  
Accumulated Amortization 135.4 133.3  
Net Book Value 40.1 47.3  
Amortization expenses related to intangible assets 12.4 16.7 $ 21.4
Intangible assets acquired during the period 5.7 7.0  
Intangible Asset, Finite-Lived, after Accumulated Amortization, Estimated Amortization Expense, Fiscal Year Maturity [Abstract]      
Intangible Asset, Finite-Lived, Estimated Amortization Expense, Year One 7.6    
Intangible Asset, Finite-Lived, Estimated Amortization Expense, Year Two 6.1    
Intangible Asset, Finite-Lived, Estimated Amortization Expense, Year Three 5.0    
Intangible Asset, Finite-Lived, Estimated Amortization Expense, Year Four 4.3    
Intangible Asset, Finite-Lived, Estimated Amortization Expense, Year Five 3.6    
Impairment of long-lived assets (note 4) 2.1 9.6 $ 15.3
Other Intangible Assets      
Intangible Asset, Finite-Lived, after Accumulated Amortization, Estimated Amortization Expense, Fiscal Year Maturity [Abstract]      
Impairment of long-lived assets (note 4) 0.4 0.5  
Acquired technology      
Intangible Asset, Finite-Lived [Line Items]      
Cost 29.8 29.8  
Accumulated Amortization 29.8 29.1  
Net Book Value 0.0 0.7  
Other acquired intangibles      
Intangible Asset, Finite-Lived [Line Items]      
Cost 40.4 40.4  
Accumulated Amortization 40.4 38.0  
Net Book Value 0.0 2.4  
Intellectual property      
Intangible Asset, Finite-Lived [Line Items]      
Cost 105.3 110.4  
Accumulated Amortization 65.2 66.2  
Net Book Value $ 40.1 $ 44.2