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Subsequent Events - (Details) - $ / shares
12 Months Ended
May. 29, 2015
May. 02, 2015
Apr. 26, 2014
Apr. 27, 2013
Subsequent Event [Line Items]        
Cash dividend declared (usd per share)   $ 0.40 $ 0.39 $ 0.73
Subsequent Event        
Subsequent Event [Line Items]        
Cash dividend declared (usd per share) $ 0.10