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Financial Instruments and Risk Management (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Nov. 30, 2018	Nov. 30, 2017	Nov. 30, 2018	Nov. 30, 2017
Foreign Currency Risk and Currency Exchange Uncertainties
Net foreign exchange gains (losses), including the impact of currency hedges and currency swaps, in income tax expense	$ 0.0	$ (0.1)	$ 0.5	$ (0.7)
SG&A
Foreign Currency Risk and Currency Exchange Uncertainties
Net foreign exchange gains (losses), including the impact of currency hedges and currency swaps	$ 0.3	$ (2.2)	$ (0.8)	$ (1.5)
Net sales revenue | Geographic concentration | International operations - transactions denominated in foreign currencies
Foreign Currency Risk and Currency Exchange Uncertainties
Concentration risk percentage	13.00%		13.00%

X

- 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.

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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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

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 275
-SubTopic 10
-Section 50
-Paragraph 18
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Amount before tax of foreign currency transaction realized and unrealized gain (loss) recognized in the income statement.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
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