Acquisition Pro Forma Information, Acquisitions (Details) $ / shares in Units, $ in Thousands	12 Months Ended
	Jan. 01, 2023 USD ($) $ / shares
Business Combination and Asset Acquisition [Abstract]
Restaurant sales	$ 1,663,860
Net income	$ (41,796)
Basic net loss per share (dollars per share) | $ / shares	$ (0.84)
Diluted net loss per share (dollars per share) | $ / shares	$ (0.84)
Pro forma transaction costs	$ 400