Acquisitions (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended
Mar. 29, 2015 stores	Dec. 28, 2014
Significant Acquisitions and Disposals [Line Items]
Goodwill	$ 818,789us-gaap_Goodwill	$ 822,562us-gaap_Goodwill
Acquisitions [Member]
Significant Acquisitions and Disposals [Line Items]
Restaurants acquired from franchisees	4
Properties	1,350
Acquired franchise rights	780
Goodwill	179
Deferred taxes and other assets	109
Capital leases obligations	(706)
Unfavorable leases	(440)
Other liabilities	(40)
Total consideration paid, net of cash received	$ 1,232

Amount of capital lease obligation, assumed at the acquisition date.

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Amount of other liabilities due within one year or within the normal operating cycle, if longer, assumed at the acquisition date.

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Amount of deferred tax asset attributable to deductible temporary differences and carryforwards that are expected to be realized or consumed after one year or the normal operating cycle, if longer, acquired at the acquisition date.

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The amount of identifiable intangible assets recognized as of the acquisition date.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 805

-SubTopic 20

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The amount of property, plant, and equipment recognized as of the acquisition date.

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- Definition

Amount after accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 350

-SubTopic 20

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The value of all consideration given or received by the Entity in the significant acquisition or disposal.

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The number of franchises purchased during the period when there are significant changes in franchisor-owned outlets or franchised outlets during the period.

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-Publisher FASB

-Name Accounting Standards Codification

-Topic 952

-SubTopic 605

-Section 50

-Paragraph 3

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Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Unfavorable Leases

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