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Defined Contribution Plan - Schedule of Employer Matching Contribution Expense Related to 401(k) Plan (Details) - USD ($)
$ in Thousands
12 Months Ended
Jun. 24, 2018
Jun. 25, 2017
Jun. 26, 2016
Defined Contribution Pension And Other Postretirement Plans Disclosure [Abstract]      
Matching contribution expense $ 2,643 $ 2,538 $ 2,331