Revenues - Change in Contract Liabilities (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2024	Mar. 26, 2023
Changes in contract liabilities, deferred gift card revenue
Balance, beginning of period	$ 5,224	$ 4,897
Gift card sales	1,409	1,534
Gift card redemptions	(3,112)	(3,204)
Gift card breakage	(459)	(318)
Gift card liabilities assumed through acquisitions	5	0
Balance, end of period	3,067	2,909
Changes in contract liabilities, deferred franchise fee revenue
Balance, beginning of period	2,061	2,768
Cash received	335	34
Franchise revenues recognized	(102)	(77)
Business combinations - franchise revenues recognized	(30)	0
Balance, end of period	$ 2,264	$ 2,725