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Revenue and Segment Disclosures -Transaction price allocated to the remaining performance obligations (Details) - USD ($)
$ in Millions
3 Months Ended 9 Months Ended
Nov. 30, 2025
Nov. 30, 2024
Nov. 30, 2025
Nov. 30, 2024
Transaction price allocated to the remaining performance obligations [Line Items]        
Contract with Customer, Performance Obligation Satisfied in Previous Period $ 1.9 $ 0.0 $ 1.9 $ 2.4
Revenue, Remaining Performance Obligation, Amount 126.1   126.1  
Less than 12 months        
Transaction price allocated to the remaining performance obligations [Line Items]        
Revenue, Remaining Performance Obligation, Amount 121.3   121.3  
12 to 24 months        
Transaction price allocated to the remaining performance obligations [Line Items]        
Revenue, Remaining Performance Obligation, Amount 2.4   2.4  
After 24 months        
Transaction price allocated to the remaining performance obligations [Line Items]        
Revenue, Remaining Performance Obligation, Amount $ 2.4   $ 2.4