Annual report pursuant to Section 13 and 15(d)

Other Assets (Details Textual 1)

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Other Assets (Details Textual 1) (USD $)
In Millions, unless otherwise specified
12 Months Ended
Feb. 28, 2014
Feb. 28, 2013
Feb. 29, 2012
Investments in and Advances to Affiliates [Line Items]      
Cash proceeds from principal in connection with early redemption of AFS debt securities $ 23.4 $ 0 $ 20.2
Accolade [Member]
     
Investments in and Advances to Affiliates [Line Items]      
Less than 20% ownership interest 20.00%    
Return of investment 5.9    
Cash proceeds in connection with early redemption of AFS debt securities 28.6 0 21.7
Cash proceeds from principal in connection with early redemption of AFS debt securities 23.4   20.2
Cash proceeds from interest in connection with early redemption of AFS debt securities $ 5.2   $ 1.5