Leases - (Lease Costs) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 28, 2022	Dec. 29, 2021
Finance lease costs:
Amortization of right-of-use assets	$ 1,704	$ 1,895
Interest on lease liabilities	2,350	2,960
Sublease income:
Total lease costs	11,183	9,089
Occupancy
Operating lease costs:
Operating lease costs	7,624	6,394
Variable lease costs:
Variable lease costs	3,988	3,275
Costs of franchise and license revenue
Operating lease costs:
Operating lease costs	15,541	17,106
Variable lease costs:
Variable lease costs	6,596	7,172
General and administrative expenses
Operating lease costs:
Operating lease costs	564	432
Variable lease costs:
Variable lease costs	255	218
Restructuring charges and exit costs
Operating lease costs:
Operating lease costs	201	356
Variable lease costs:
Variable lease costs	34	48
Sublease income:
Sublease income	(229)	(160)
Franchise and license revenue
Sublease income:
Sublease income	$ (27,445)	$ (30,607)