Segment Information - Schedule of Segment Reporting Information, by Segment (Details) - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 27, 2015	Sep. 27, 2015	Jun. 28, 2015	Mar. 29, 2015	Dec. 28, 2014	Sep. 28, 2014	Jun. 29, 2014	Mar. 30, 2014	Dec. 27, 2015	Dec. 28, 2014	Dec. 29, 2013
Segment Information
Revenue from external customers	$ 416,816	$ 389,284	$ 398,991	$ 432,284	$ 425,509	$ 390,399	$ 380,864	$ 401,377	$ 1,637,375	$ 1,598,149	$ 1,439,022
Depreciation and amortization									40,307	39,965	35,105
Income before income taxes									119,147	114,255	106,109
Property and equipment, gross	575,562				557,041				575,562	557,041
Accumulated depreciation and amortization	(361,518)				(337,584)				(361,518)	(337,584)	(314,689)
Net property and equipment	214,044				219,457				214,044	219,457	212,097
Expenditures for property and equipment									38,972	48,655	50,750
Balance sheet related disclosures
Legal settlement expense			$ 8,000						12,278
Operating segments | Domestic Company-owned restaurants
Segment Information
Revenue from external customers									756,307	701,854	635,317
Depreciation and amortization									14,841	13,829	13,284
Income before income taxes									56,452	40,969	34,590
Property and equipment, gross	223,246				208,488				223,246	208,488	195,526
Expenditures for property and equipment									14,631	23,475	13,149
Operating segments | Domestic commissaries
Segment Information
Revenue from external customers									615,610	629,492	578,870
Depreciation and amortization									6,205	6,776	5,690
Income before income taxes									44,721	39,317	37,804
Property and equipment, gross	110,344				107,992				110,344	107,992	104,509
Expenditures for property and equipment									3,924	5,756	9,791
Operating segments | North America franchising
Segment Information
Revenue from external customers									96,056	90,169	82,873
Income before income taxes									83,315	77,009	70,201
Operating segments | International
Segment Information
Revenue from external customers									104,691	102,455	88,640
Depreciation and amortization									2,935	3,903	3,966
Income before income taxes									10,891	7,250	2,803
Property and equipment, gross	14,826				25,443				14,826	25,443	27,225
Expenditures for property and equipment									4,540	1,708	3,754
Operating segments | All others
Segment Information
Revenue from external customers									64,711	74,179	53,322
Depreciation and amortization									4,829	6,156	5,320
Income before income taxes									845	(9)	3,490
Property and equipment, gross	47,481				46,013				47,481	46,013	41,064
Expenditures for property and equipment									4,701	5,906	4,689
Elimination
Segment Information
Revenue from external customers									241,870	245,977	208,455
Income before income taxes									(1,181)	(841)	(1,754)
Elimination | Domestic commissaries
Segment Information
Revenue from external customers									224,067	220,406	191,756
Elimination | North America franchising
Segment Information
Revenue from external customers									2,690	2,400	2,222
Elimination | International
Segment Information
Revenue from external customers									292	320	280
Elimination | All others
Segment Information
Revenue from external customers									14,821	22,851	14,197
Unallocated corporate
Segment Information
Depreciation and amortization									11,497	9,301	6,845
Income before income taxes									(75,896)	(49,440)	(41,025)
Property and equipment, gross	$ 179,665				$ 169,105				179,665	169,105	158,462
Expenditures for property and equipment									$ 11,176	$ 11,810	$ 19,367