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Financial Instruments and Risk Management (Details) (USD $) In Millions, unless otherwise specified | 3 Months Ended | 6 Months Ended
--- | --- | ---
Aug. 31, 2012 | Aug. 31, 2011 | Aug. 31, 2012 | Aug. 31, 2011
Foreign Currency Risk |  |  |  |
Net foreign exchange gains (losses), including the impact of currency hedges, in SG&A | $ 0.77 | $ (0.05) | $ (0.17) | $ (0.20)
Net foreign exchange gains (losses), including the impact of currency hedges, in income tax expense | $ (0.03) | $ (0.04) | $ 0.16 | $ (0.08)
Net sales revenue | Geographic concentration | International operations - transactions denominated in foreign currencies |  |  |  |
Foreign Currency Risk |  |  |  |
Percentage of net sales revenue in foreign currencies | 16.00% | 17.00% | 16.00% | 19.00%

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- Definition For an entity that discloses a concentration risk in relation to quantitative amount, which serves as the "benchmark" (or denominator) in the equation, this concept represents the concentration percentage derived from the division. + References No definition available. + Details
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- Definition The aggregate foreign currency transaction gain (loss) (both realized and unrealized) included in income tax expense (benefit) for the reporting period. Includes the amount of net gains and losses recognized in income during the period on foreign currency derivative instruments. + References No definition available. + Details
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- Definition The aggregate foreign currency transaction gain (loss) (both realized and unrealized) included in selling, general and administrative expense for the reporting period. Includes the amount of net gains and losses recognized in income during the period on foreign currency derivative instruments. + References No definition available. + Details
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