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Income Taxes (Details) - USD ($)
$ in Thousands
3 Months Ended 9 Months Ended
Jul. 02, 2021
Jul. 03, 2020
Jul. 02, 2021
Jul. 03, 2020
Oct. 02, 2020
Income Tax Disclosure [Abstract]          
Income tax expense $ 482 $ 1,750 $ 3,349 $ 4,716  
Effective income tax rate 3.10% (7.50%) 13.80% (8.00%)  
Effective tax rate     21.00%    
Deferred tax assets $ 39,800   $ 39,800   $ 39,800
Unrecognized tax benefit $ 300   $ 300   $ 300