Financial Instruments and Risk Management (Details) - USD ($) $ in Millions	3 Months Ended	6 Months Ended
Aug. 31, 2019	Aug. 31, 2018	Aug. 31, 2019	Aug. 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	$ 0.5	$ 1.6	$ (1.2)
Net sales revenue \| Geographic concentration \| International operations - transactions denominated in foreign currencies
Foreign Currency Risk and Currency Exchange Uncertainties
Concentration risk percentage	14.00%	11.00%	13.00%	13.00%

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.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
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