Revenue Recognition - Summary of Disaggregation of Revenues (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jul. 03, 2022	Jul. 04, 2021	Jul. 03, 2022	Jul. 04, 2021
Disaggregation of Revenue [Line Items]
Total net revenues	$ 375,245	$ 349,186	$ 747,777	$ 670,995
Company Shops, DFD and Branded Sweet Treat Line
Disaggregation of Revenue [Line Items]
Total net revenues	354,551	329,775	706,385	630,270
Mix and equipment revenue from franchisees
Disaggregation of Revenue [Line Items]
Total net revenues	13,226	11,448	25,444	24,538
Franchise royalties and other
Disaggregation of Revenue [Line Items]
Total net revenues	$ 7,468	$ 7,963	$ 15,948	$ 16,187