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Share-Based Compensation - Cash Received and Aggregate Intrinsic Value of Stock Options Exercised (Detail) - USD ($)
$ in Millions
12 Months Ended
Jun. 29, 2019
Jun. 30, 2018
Jun. 24, 2017
Disclosure Of Compensation Related Costs Sharebased Payments [Abstract]      
Cash received $ 5.2 $ 16.7 $ 10.7
Aggregate intrinsic value $ 2.4 $ 15.2 $ 12.3