Leases - (Lease Income) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 28, 2022	Dec. 29, 2021
Lease income
Total lease income	$ 38,966	$ 41,991
Restructuring charges and exit costs
Lease income
Operating lease income	183	109
Variable lease income	$ 46	51
Operating lease, lease income, statement of income or comprehensive income	Other Operating Income (Expense), Net
General and administrative expenses
Lease income
Operating lease income	$ 140	65
Operating lease, lease income, statement of income or comprehensive income	General and administrative expenses
Franchise and license revenue
Lease income
Operating lease income	$ 28,473	30,767
Variable lease income	$ 10,124	$ 10,999
Operating lease, lease income, statement of income or comprehensive income	Revenue recognized