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Income Taxes (Details) - USD ($)
$ in Thousands
3 Months Ended
Jun. 29, 2019
Dec. 29, 2018
Dec. 28, 2019
Sep. 28, 2019
Income Tax Disclosure [Abstract]        
Income tax discrete benefits   $ 1,293    
Change in enacted tax rate   1,297    
Tax Cuts and Jobs Act of 2017, other measurement period adjustment, income tax expense   $ 4    
Tax Cuts and Jobs Act of 2017, potential future income tax expense (benefit) $ 1,297      
Unrecognized tax benefits     $ 5,034 $ 4,414
Unrecognized tax benefits that would favorably impact the effective tax rate on continuing operations     $ 3,381 $ 2,761