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Goodwill and Intangible Assets - Summary of Changes in Carrying Amount of Goodwill (Detail)
$ in Thousands
12 Months Ended
Jun. 28, 2018
USD ($)
Goodwill and Intangible Assets Disclosure [Abstract]  
Gross goodwill balance at July 1, 2016 $ 8,766
Accumulated amortization and impairments (8,766)
Goodwill acquired during fiscal 2018 9,650
Ending balance $ 9,650