Amount of accumulated depreciation, depletion and amortization for physical assets used in the normal conduct of business to produce goods and services.

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-Name Accounting Standards Codification

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The aggregate expense recognized in the current period that allocates the cost of tangible assets, intangible assets, or depleting assets to periods that benefit from use of the assets.

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This element represents the income or loss from continuing operations attributable to the economic entity which may also be defined as revenue less expenses from ongoing operations, after income or loss from equity method investments, but before income taxes, extraordinary items, and noncontrolling interest.

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The cash outflow associated with the acquisition of long-lived, physical assets that are used in the normal conduct of business to produce goods and services and not intended for resale; includes cash outflows to pay for construction of self-constructed assets.

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Amount before accumulated depreciation, depletion and amortization of physical assets used in the normal conduct of business and not intended for resale. Examples include, but are not limited to, land, buildings, machinery and equipment, office equipment, and furniture and fixtures.

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Amount after accumulated depreciation, depletion and amortization of physical assets used in the normal conduct of business to produce goods and services and not intended for resale. Examples include, but are not limited to, land, buildings, machinery and equipment, office equipment, and furniture and fixtures.

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Amount of revenue recognized from goods sold, services rendered, insurance premiums, or other activities that constitute an earning process. Includes, but is not limited to, investment and interest income before deduction of interest expense when recognized as a component of revenue, and sales and trading gain (loss).

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Segment Information (Details 2) (USD $) In Thousands, unless otherwise specified	3 Months Ended								12 Months Ended
	Dec. 28, 2014	Sep. 28, 2014	Jun. 29, 2014	Mar. 30, 2014	Dec. 29, 2013	Sep. 29, 2013	Jun. 30, 2013	Mar. 31, 2013	Dec. 28, 2014	Dec. 29, 2013	Dec. 30, 2012
Segment Information
Revenue from external customers	$ 425,509us-gaap_Revenues	$ 390,399us-gaap_Revenues	$ 380,864us-gaap_Revenues	$ 401,377us-gaap_Revenues	$ 387,890us-gaap_Revenues	$ 346,342us-gaap_Revenues	$ 349,186us-gaap_Revenues	$ 355,604us-gaap_Revenues	$ 1,598,149us-gaap_Revenues	$ 1,439,022us-gaap_Revenues	$ 1,342,653us-gaap_Revenues
Depreciation and amortization									39,965	35,105	32,798
Income before income taxes									114,255	106,109	98,395
Property and equipment, gross	557,041us-gaap_PropertyPlantAndEquipmentGross				526,786us-gaap_PropertyPlantAndEquipmentGross				557,041us-gaap_PropertyPlantAndEquipmentGross	526,786us-gaap_PropertyPlantAndEquipmentGross
Accumulated depreciation and amortization	(337,584)				(314,689)				(337,584)	(314,689)	(291,303)
Net property and equipment	219,457us-gaap_PropertyPlantAndEquipmentNet				212,097us-gaap_PropertyPlantAndEquipmentNet				219,457us-gaap_PropertyPlantAndEquipmentNet	212,097us-gaap_PropertyPlantAndEquipmentNet	196,661us-gaap_PropertyPlantAndEquipmentNet
Expenditures for property and equipment									48,655	50,750	42,628
Operating segments \| Domestic Company-owned restaurants
Segment Information
Revenue from external customers									701,854	635,317	592,203
Depreciation and amortization									13,829	13,284	13,242
Income before income taxes									40,969	34,590	38,114
Property and equipment, gross	208,488				195,526				208,488	195,526	184,322
Expenditures for property and equipment									23,475	13,149	9,319
Operating segments \| Domestic commissaries
Segment Information
Revenue from external customers									629,492	578,870	545,924
Depreciation and amortization									6,776	5,690	4,738
Income before income taxes									39,317	37,804	34,317
Property and equipment, gross	107,992				104,509				107,992	104,509	101,082
Expenditures for property and equipment									5,756	9,791	14,314
Operating segments \| North America franchising
Segment Information
Revenue from external customers									90,169	82,873	80,373
Income before income taxes									77,009	70,201	69,332
Operating segments \| International
Segment Information
Revenue from external customers									102,455	88,640	72,930
Depreciation and amortization									3,903	3,966	2,824
Income before income taxes									7,250	2,803	3,063
Property and equipment, gross	25,443				27,225				25,443	27,225	22,389
Expenditures for property and equipment									1,708	3,754	4,865
Operating segments \| All others
Segment Information
Revenue from external customers									74,179	53,322	51,223
Depreciation and amortization									6,156	5,320	4,801
Income before income taxes									(9)	3,490	2,889
Property and equipment, gross	46,013				41,064				46,013	41,064	37,221
Expenditures for property and equipment									5,906	4,689	3,342
Elimination
Segment Information
Revenue from external customers									245,977	208,455	185,314
Income before income taxes									(841)	(1,754)	(362)
Elimination \| Domestic commissaries
Segment Information
Revenue from external customers									220,406	191,756	171,212
Elimination \| North America franchising
Segment Information
Revenue from external customers									2,400	2,222	2,267
Elimination \| International
Segment Information
Revenue from external customers									320	280	229
Elimination \| All others
Segment Information
Revenue from external customers									22,851	14,197	11,606
Unallocated corporate
Segment Information
Depreciation and amortization									9,301	6,845	7,193
Income before income taxes									(49,440)	(41,025)	(48,958)
Property and equipment, gross	169,105				158,462				169,105	158,462	142,950
Expenditures for property and equipment									$ 11,810	$ 19,367	$ 10,788