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Share-Based Compensation - Phantom Stock Units - Additional Information (Detail) - USD ($)
$ / shares in Units, $ in Millions
6 Months Ended
Dec. 26, 2020
Dec. 31, 2020
Jun. 30, 2020
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]      
Fair value of outstanding stock units   $ 71.31 $ 69.78
Phantom Stock Unit [Member]      
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]      
Vesting period of the underlying awards 3 years    
Fair value of outstanding stock units $ 81.31    
Accrued liability for outstanding stock units $ 2.8    
Unrecognized share-based compensation cost $ 33.5    
Unrecognized share-based compensation, period for recognition 1 year 10 months 24 days