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Income Taxes (Details) - USD ($)
$ in Thousands
3 Months Ended 9 Months Ended
Sep. 29, 2020
Sep. 24, 2019
Sep. 29, 2020
Sep. 24, 2019
Reconciliation of the statutory federal income tax rate to our effective tax rate:        
Tax Benefit (tax expense), as a percent 9.20% (15.10%)    
Income tax (benefit) expense $ 3,072 $ 6,785 $ (13,999) $ 23,331