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Stock-Based Compensation Plans - Summary of Compensation Expenses (Detail) - USD ($)
$ in Thousands
3 Months Ended 6 Months Ended
Dec. 24, 2020
Dec. 26, 2019
Dec. 24, 2020
Dec. 26, 2019
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]        
Compensation cost charged to earnings $ 998 $ 855 $ 1,620 $ 1,488