Income Taxes - Summary of Income Tax Expense (Benefit) (Details) - USD ($) $ in Thousands	12 Months Ended
	Jan. 02, 2021	Dec. 28, 2019	Dec. 29, 2018
Current:
Federal	$ 29,762	$ 12,299	$ 12,483
State	6,528	3,293	2,871
Current income tax expense	36,290	15,592	15,354
Deferred:
Federal	584	2,591	708
State	(91)	480	920
Deferred income tax expense	493	3,071	1,628
Income tax expense	$ 36,783	$ 18,663	$ 16,982