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Financial Instruments and Risk Management (Details) - USD ($)
$ in Thousands
3 Months Ended 6 Months Ended
Aug. 31, 2021
Aug. 31, 2020
Aug. 31, 2021
Aug. 31, 2020
Feb. 28, 2021
Foreign Currency Risk and Currency Exchange Uncertainties          
Aggregate principal balance $ 475,707   $ 475,707   $ 347,607
Credit agreement          
Foreign Currency Risk and Currency Exchange Uncertainties          
Fixed rate debt 225,000   225,000    
Aggregate principal balance 459,000   459,000   $ 329,000
SG&A          
Foreign Currency Risk and Currency Exchange Uncertainties          
Net foreign exchange gains (losses), including the impact of currency hedges and currency swaps $ (900) $ 1,800 $ (500) $ 100  
Net sales revenue | Geographic concentration | International operations - transactions denominated in foreign currencies          
Foreign Currency Risk and Currency Exchange Uncertainties          
Concentration risk percentage 9.00% 10.00% 10.00% 13.00%