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Segment, Customers, and Geographic Information - Major Customers' Revenue as a Percentage of Total Net Revenue (Parenthetical) (Detail)
12 Months Ended
Jun. 30, 2018
Jun. 24, 2017
Jun. 25, 2016
Customer Concentration Risk [Member] | Sales Revenue, Net [Member] | Maximum [Member]      
Revenue, Major Customer [Line Items]      
Concentration Risk, Percentage 10.00% 10.00% 10.00%