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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. 27, 2021
Jun. 28, 2020
Jun. 30, 2019
Compensation And Retirement Disclosure [Abstract]      
Matching contribution expense $ 2,578 $ 2,491 $ 2,836