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Financial Instruments and Risk Management - Narrative (Details) - USD ($)
$ in Millions
12 Months Ended
Feb. 28, 2021
Feb. 29, 2020
Feb. 28, 2019
Foreign currency derivatives | Cash flow hedges      
Foreign Currency Risk and Currency Exchange Uncertainties      
Net loss currently reported in accumulated other comprehensive income, to be reclassified into income $ (9.3)    
Senior notes      
Foreign Currency Risk and Currency Exchange Uncertainties      
Fixed rate debt 225.0    
Credit agreement      
Foreign Currency Risk and Currency Exchange Uncertainties      
Floating rate debt 329.0    
SG&A      
Foreign Currency Risk and Currency Exchange Uncertainties      
Net foreign exchange gains (losses), including the impact of currency hedges and currency swaps $ (0.6) $ 2.2 $ 1.3
Net sales revenue | Geographic concentration | International operations - transactions denominated in foreign currencies      
Foreign Currency Risk and Currency Exchange Uncertainties      
Concentration risk percentage 12.00% 14.00% 13.00%