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

Amount charged to advertising expense for the period, which are expenses incurred with the objective of increasing revenue for a specified brand, product or product line.

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 720

-SubTopic 35

-Section 50

-Paragraph 1

-URI http://asc.fasb.org/extlink&oid=6420018&loc=d3e36677-107848

Name:	us-gaap_AdvertisingExpense
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration