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Provision for Income Taxes - Narrative (Details) - USD ($)
$ in Thousands
3 Months Ended 9 Months Ended
Sep. 26, 2020
Sep. 28, 2019
Sep. 26, 2020
Sep. 28, 2019
Income Tax Disclosure [Abstract]        
Provision for income taxes $ 4,705 $ 5,219 $ 13,738 $ 12,310
Effective tax rate     26.00% 22.00%