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Organization and Summary of Significant Accounting Policies - Schedule of Goodwill (Detail) - USD ($)
$ in Millions
12 Months Ended
Jun. 25, 2016
Jun. 27, 2015
Goodwill And Intangible Assets Disclosure [Abstract]    
Beginning balance $ 206.8 $ 61.0
Acquisition activity 0.0 153.4
Post acquisition adjustments 0.0 (7.6)
Ending balance $ 206.8 $ 206.8