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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Amount of income (loss) from continuing operations, including income (loss) from equity method investments, before deduction of income tax expense (benefit), and income (loss) attributable to noncontrolling interest.

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Number of segments reported by the entity. A reportable segment is a component of an entity for which there is an accounting requirement to report separate financial information on that component in the entity's financial statements.

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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 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 - Schedule of Segment Reporting Information, by Segment (Details) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 26, 2016 USD ($)	Jun. 28, 2015 USD ($)	Jun. 26, 2016 USD ($) segment	Jun. 28, 2015 USD ($)	Dec. 27, 2015 USD ($)
Segment Information
Reportable segments, number \| segment			5
Revenues	$ 422,964	$ 398,991	$ 851,559	$ 831,275
Income before income taxes	35,200	17,531	76,609	53,967
Accumulated depreciation and amortization	(376,886)		(376,886)
Net property and equipment	217,528		217,528		$ 214,044
International
Segment Information
Revenues	28,460	26,326	55,915	51,752
Operating segments
Segment Information
Revenues	422,964	398,991	851,559	831,275
Operating segments \| Domestic Company-owned restaurants
Segment Information
Revenues	204,248	185,962	409,927	383,249
Income before income taxes	15,325	14,617	35,512	33,097
Property and equipment, gross	227,023		227,023
Operating segments \| Domestic commissaries
Segment Information
Revenues	150,895	149,007	306,849	311,340
Income before income taxes	11,682	10,702	23,228	22,502
Property and equipment, gross	112,666		112,666
Operating segments \| North America franchising
Segment Information
Revenues	25,302	23,276	51,778	48,900
Income before income taxes	22,445	20,054	46,025	42,373
Operating segments \| International
Segment Information
Revenues	28,460	26,326	55,915	51,752
Income before income taxes	2,875	2,279	5,913	3,623
Property and equipment, gross	16,854		16,854
Operating segments \| All others
Segment Information
Revenues	14,059	14,420	27,090	36,034
Income before income taxes	425	(117)	476	326
Property and equipment, gross	50,949		50,949
Elimination
Segment Information
Revenues	62,603	58,899	125,804	121,464
Income before income taxes	(473)	(55)	(1,134)	(800)
Elimination \| Domestic commissaries
Segment Information
Revenues	57,722	54,459	116,048	112,346
Elimination \| North America franchising
Segment Information
Revenues	739	671	1,452	1,342
Elimination \| International
Segment Information
Revenues	67	75	132	150
Elimination \| All others
Segment Information
Revenues	4,075	3,694	8,172	7,626
Unallocated corporate
Segment Information
Income before income taxes	(17,079)	$ (29,949)	(33,411)	$ (47,154)
Property and equipment, gross	$ 186,922		$ 186,922