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Stockholders' Equity - Additional Information (Detail)
 12 Months Ended
Jun. 28, 2018
Vote
$ / shares
shares
Jun. 29, 2017
Vote
$ / shares
shares
Common Stock, Non-Cumulative Voting Rights of One Vote Per Share [Member]    
Stockholders Equity [Line Items]    
Common stock, par value | $ / shares $ 0.01 $ 0.01
Percentage of members comprising the Board of Directors elected by the holders of Common Stock 25.00% 25.00%
Noncumulative voting rights per share | Vote 1 1
Class A Common Stock [Member]    
Stockholders Equity [Line Items]    
Common stock, par value | $ / shares $ 0.01 $ 0.01
Number of votes per share | Vote 10 10
Number of shares of Common Stock converted from each share of Class A Stock | shares 1 1