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Introduction and Basis of Reporting (Details)	12 Months Ended
	Dec. 28, 2016 Countries restaurant States Territories
Franchisor Disclosure [Line Items]
Number of states in which entity operates | States	50
Number of territories in which entity operates | Territories	2
Number of foreign countries in which entity operates | Countries	11
Number of restaurants	1,733
Franchised and licensed restaurants [Member]
Franchisor Disclosure [Line Items]
Number of restaurants	1,564
Company-owned restaurants [Member]
Franchisor Disclosure [Line Items]
Number of restaurants	169
California [Member]
Franchisor Disclosure [Line Items]
Percentage of restaurants operated by geographic region	23.00%
Texas [Member]
Franchisor Disclosure [Line Items]
Percentage of restaurants operated by geographic region	11.00%
Florida [Member]
Franchisor Disclosure [Line Items]
Percentage of restaurants operated by geographic region	8.00%

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Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 275
-SubTopic 10
-Section 50
-Paragraph 18
-URI http://asc.fasb.org/extlink&oid=64851502&loc=d3e6351-108592

Reference 2: http://www.xbrl.org/2003/role/presentationRef
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