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Income Taxes (Details) - USD ($)
$ in Thousands
3 Months Ended 9 Months Ended
Jul. 03, 2021
Jun. 27, 2020
Jul. 03, 2021
Jun. 27, 2020
Income Tax Disclosure [Abstract]        
(Benefit from) provision for income taxes (less than for the nine months ended June 27, 2020) $ 858 $ 152 $ 3,436 $ (1)