XML 65 R54.htm IDEA: XBRL DOCUMENT v3.3.1.900
Treasury Stock (Details) - Schedule of repurchase of common stock - USD ($)
$ in Millions
 3 Months Ended 12 Months Ended 60 Months Ended
Feb. 29, 2016
Sep. 30, 2010
Aug. 31, 2015
Dec. 16, 2015
Jul. 22, 2015
Oct. 01, 2009
Stockholders' Equity Attributable to Parent [Abstract]            
September 2010   $ 44.0 [1]   $ 200.0   $ 200.0
Additional authorization July 2015         $ 50.0  
Less repurchases made under the authorization as of September 2010 $ (7.0) $ (156.0) $ (41.1)      
Remaining Board authorization at November 30, 2015 $ 52.9          
[1] Represents the remainder of a $200.0 authorization after giving effect to the purchase of 5,199,699 shares at $30.00 per share pursuant to a large share repurchase in the form of a modified Dutch Auction tender offer that was completed by the Company on November 3, 2010 for a total cost of $156.0, excluding related fees and expenses.