Description of Business, Basis of Presentation and Summary of Significant Accounting Policies (Details Textual) (USD $)
In Millions, unless otherwise specified |
12 Months Ended | ||
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Feb. 28, 2015
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Feb. 28, 2014
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Feb. 28, 2013
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Accounting Policies [Abstract] | |||
Advertising expense | $ 406.1 | $ 278.5 | $ 121.9 |
Number of classes of outstanding common stock | 2 | ||
Number of stock-based employee compensation plans | 2 |