Goodwill and Intangible Assets - Schedule of Goodwill by Segment (Details) - USD ($) $ in Thousands	Mar. 27, 2024	Dec. 27, 2023
Goodwill [Line Items]
Total goodwill	$ 65,908	$ 65,908
Denny’s
Goodwill [Line Items]
Total goodwill	37,527	37,527
Other
Goodwill [Line Items]
Total goodwill	$ 28,381	$ 28,381