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Revenue and Segment Disclosures -Transaction price allocated to the remaining performance obligations (Details) - USD ($)
$ in Millions
12 Months Ended
Feb. 28, 2025
Feb. 29, 2024
Feb. 28, 2023
Transaction price allocated to the remaining performance obligations [Line Items]      
Contract with Customer, Performance Obligation Satisfied in Previous Period $ 2.4 $ 12.2 $ 0.6
Revenue, Remaining Performance Obligation, Amount 167.1    
Less than 12 months      
Transaction price allocated to the remaining performance obligations [Line Items]      
Revenue, Remaining Performance Obligation, Amount 161.5    
12 to 24 months      
Transaction price allocated to the remaining performance obligations [Line Items]      
Revenue, Remaining Performance Obligation, Amount 2.7    
After 24 months      
Transaction price allocated to the remaining performance obligations [Line Items]      
Revenue, Remaining Performance Obligation, Amount $ 2.9