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Subsequent Events (Details) - $ / shares
3 Months Ended 6 Months Ended
Dec. 02, 2016
Oct. 29, 2016
Oct. 31, 2015
Oct. 29, 2016
Oct. 31, 2015
Subsequent Event [Line Items]          
Cash dividend declared per share (in dollars per share)   $ 0.07 $ 0.10 $ 0.17 $ 0.20
Subsequent Event [Member]          
Subsequent Event [Line Items]          
Cash dividend declared per share (in dollars per share) $ 0.07