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Subsequent Events (Details) - USD ($)
$ / shares in Units, $ in Millions
12 Months Ended
Jul. 28, 2015
Jun. 30, 2015
Jun. 30, 2014
Jun. 30, 2013
Subsequent Event [Line Items]        
Stock Repurchased During Period, Value   $ 10.6 $ 1.3  
Dividends declared per common share (in dollars per share)   $ 0.7175 $ 0.6225 $ 0.15
Subsequent Event [Member]        
Subsequent Event [Line Items]        
Stock Repurchased During Period, Value $ 200.0      
Dividends declared per common share (in dollars per share) $ 0.20