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Income Taxes (Details) - USD ($)
$ in Thousands
3 Months Ended 9 Months Ended
Sep. 26, 2020
Sep. 28, 2019
Sep. 26, 2020
Sep. 28, 2019
Dec. 31, 2019
Income Tax Disclosure [Abstract]          
Estimated annual effective tax rate     27.70% 24.00%  
Effective income tax rate 27.80% 29.20% 27.80% 24.00%  
Unrecognized tax benefits $ 1,639   $ 1,639   $ 1,850
Unrecognized tax benefits that would impact effective tax rate 713   713   654
Unrecognized tax benefits, interest on income taxes accrued $ 69   $ 69   $ 64