Income Taxes (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 24, 2021	Sep. 25, 2020	Sep. 24, 2021	Sep. 25, 2020
Income Tax Disclosure [Abstract]
Effective income tax rate	11.30%	97.90%	10.60%	22.40%
Income tax benefit	$ 2,729	$ 694	$ 3,373	$ 6,025