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Financial Instruments and Risk Management (Details) - USD ($) $ in Millions | 3 Months Ended
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May 31, 2019 | May 31, 2018
SG&A |  |
Foreign Currency Risk and Currency Exchange Uncertainties |  |
Net foreign exchange gains (losses), including the impact of currency hedges and currency swaps | $ 0.8 | $ (1.7)
Net sales revenue | Geographic concentration | International operations - transactions denominated in foreign currencies |  |
Foreign Currency Risk and Currency Exchange Uncertainties |  |
Concentration risk percentage | 12.00% | 13.00%

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