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Audited Consolidated Statement of Stockholders' Equity (Parenthetical) - $ / shares
12 Months Ended
May 27, 2017
May 28, 2016
May 30, 2015
Common Class B [Member]      
Dividends per common share $ 0.22 $ 0.22 $ 0.22
Common Stock [Member]      
Dividends per common share $ 0.24 $ 0.24 $ 0.24