Income Taxes - Details of Income Tax (Details) - USD ($) $ in Thousands	3 Months Ended	6 Months Ended
Jun. 27, 2020	Jun. 30, 2019	Jun. 27, 2020	Jun. 30, 2019
Income Tax Disclosure [Abstract]
Income before income taxes	$ 7,418	$ 6,121	$ 3,414	$ 14,916
Provision (benefit) for income taxes	$ (6)	$ 595	$ 394	$ 1,814
Effective tax rate	0.00%	10.00%	12.00%	12.00%

Amount of income (loss) from continuing operations, including income (loss) from equity method investments, before deduction of income tax expense (benefit), and income (loss) attributable to noncontrolling interest.

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+ Details

- Definition

Amount of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations.

+ References+ Details