Franchise Rights Acquired, Goodwill and Other Intangible Assets - Change in Carrying Amount of Goodwill (Detail) $ in Thousands	12 Months Ended
	Dec. 28, 2019 USD ($)
Goodwill [Line Items]
Beginning balance	$ 152,519
Ending balance	157,916
Franchisee Acquisition
Goodwill [Line Items]
Beginning balance	152,519
Goodwill acquired during the period	4,111
Effect of exchange rate changes	1,286
Ending balance	157,916
Franchisee Acquisition | North America
Goodwill [Line Items]
Beginning balance	138,156
Goodwill acquired during the period	4,111
Effect of exchange rate changes	1,673
Ending balance	143,940
Franchisee Acquisition | Continental Europe
Goodwill [Line Items]
Beginning balance	7,242
Goodwill acquired during the period	0
Effect of exchange rate changes	(227)
Ending balance	7,015
Franchisee Acquisition | United Kingdom
Goodwill [Line Items]
Beginning balance	1,178
Goodwill acquired during the period	0
Effect of exchange rate changes	35
Ending balance	1,213
Franchisee Acquisition | Other
Goodwill [Line Items]
Beginning balance	5,943
Goodwill acquired during the period	0
Effect of exchange rate changes	(195)
Ending balance	$ 5,748