Acquisition Purchase Price Allocation, 2014 Acquisitions (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
Dec. 28, 2014	Dec. 30, 2012	Dec. 29, 2013
Business Acquisition [Line Items]
Number of acquisitions	5tast_Numberofacquisitions
Inventory	$ 1,267	3,336
Land and building	15,955
Restaurant equipment	5,818	20,955
Restaurant equipment - subject to capital lease	1,381	10,751
Leasehold improvements	1,804	7,640
Franchise fees	3,064	8,597
Franchise rights	17,098	30,700
Favorable leases	2,096	3,470
Deferred income taxes	1,526	2,465
Other assets	65
Goodwill	17,793us-gaap_Goodwill	8,162us-gaap_Goodwill	8,162us-gaap_Goodwill
Capital lease obligation for restaurant equipment	(1,458)	(10,779)
Unfavorable leases	(5,912)	(9,553)
Other liabilities	(135)	(174)
Off-Market Favorable Lease [Member]
Business Acquisition [Line Items]
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life	13 years 5 months	14 years 8 months
Above Market Leases [Member]
Business Acquisition [Line Items]
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life	15 years 0 months	14 years 4 months
Franchise Rights [Member]
Business Acquisition [Line Items]
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life	30 years 5 months	33 years 6 months
2014 Acquisitions [Member]
Business Acquisition [Line Items]
Goodwill	$ 9,631

Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Franchise Fees

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- Definition

Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Franchise Rights

+ References

No definition available.

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- Definition

Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Land and Building

+ References

No definition available.

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- Definition

Number of separate acquisition transactions during the period

+ References

No definition available.

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- Definition

Weighted average amortization period of finite-lived intangible assets acquired either individually or as part of a group of assets, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 350

-SubTopic 30

-Section 50

-Paragraph 1

-Subparagraph (a)(3)

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- Definition

The amount of goodwill arising from a business combination that is expected to be deductible for tax purposes.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 805

-SubTopic 30

-Section 50

-Paragraph 1

-Subparagraph (d)

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- Definition

Amount of facility held for productive use including, but not limited to, office, production, storage and distribution facilities, acquired at the acquisition date.

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

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- Definition

Amount of other assets expected to be realized or consumed before one year or the normal operating cycle, if longer, acquired at the acquisition date.

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- Definition

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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- Definition

Amount of tangible personal property used to produce goods and services, including, but is not limited to, tools, dies and molds, computer and office equipment, acquired at the acquisition date.

+ References

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- Definition

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

-Section 50

-Paragraph 1

-Subparagraph (c)

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-Topic 805

-SubTopic 10

-Section 55

-Paragraph 37

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- Definition

The amount of inventory recognized as of the acquisition date.

+ References

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- Definition

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

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- Definition

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.

+ References

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-Publisher FASB

-Name Accounting Standards Codification

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-SubTopic 20

-Section 50

-Paragraph 1

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-SubTopic 20

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