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Franchise Rights Acquired, Goodwill and Other Intangible Assets - Change in Carrying Amount of Goodwill (Detail) - USD ($)			12 Months Ended
	May 09, 2021	May 03, 2020	Jan. 01, 2022	Jan. 02, 2021
Goodwill [Line Items]
Beginning balance			$ 155,617,000	$ 157,916,000
Goodwill impairment	$ 0	$ 0		(3,665,000)
Goodwill acquired during the period			2,153,000
Effect of exchange rate changes			(396,000)	1,366,000
Ending balance			157,374,000	155,617,000
North America
Goodwill [Line Items]
Beginning balance			145,071,000	143,940,000
Goodwill acquired during the period			2,153,000
Effect of exchange rate changes			306,000	1,131,000
Ending balance			147,530,000	145,071,000
Continental Europe
Goodwill [Line Items]
Beginning balance			7,792,000	7,015,000
Effect of exchange rate changes			(606,000)	777,000
Ending balance			7,186,000	7,792,000
United Kingdom
Goodwill [Line Items]
Beginning balance			1,268,000	1,213,000
Effect of exchange rate changes			(14,000)	55,000
Ending balance			1,254,000	1,268,000
Other
Goodwill [Line Items]
Beginning balance			1,486,000	5,748,000
Goodwill impairment				(3,665,000)
Effect of exchange rate changes			(82,000)	(597,000)
Ending balance			$ 1,404,000	$ 1,486,000