Condensed Statements of Cash Flows - USD ($) $ in Thousands	12 Months Ended
	Dec. 29, 2015	Dec. 30, 2014	Dec. 31, 2013
Cash flows from operating activities:
Net income including noncontrolling interests	$ 101,261	$ 90,977	$ 84,087
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	69,694	59,179	51,562
Deferred income taxes	411	(480)	(947)
Loss on disposition of assets	5,455	4,987	3,794
Gain on sale of other concept			(1,800)
Impairment and closure costs	974	626	278
Equity income from investments in unconsolidated affiliates	(1,641)	(1,602)	(713)
Distributions of income received from investments in unconsolidated affiliates	502	541	444
Provision for doubtful accounts	(4)	6	86
Share-based compensation expense	22,825	14,883	14,740
Changes in operating working capital:
Receivables	(11,395)	(8,634)	(9,063)
Inventories	(1,377)	(2,278)	(1,057)
Prepaid expenses	(743)	(277)	(3,066)
Other assets	(2,276)	(1,231)	(4,720)
Accounts payable	7,611	5,366	5,712
Deferred revenue-gift cards	21,812	16,660	9,555
Accrued wages	5,858	1,381	3,964
Excess tax benefits from share-based compensation	(4,540)	(2,885)	(4,887)
Prepaid income taxes and income taxes payable	2,994	5,128	7,931
Accrued taxes and licenses	1,187	158	4,088
Other accrued liabilities	1,991	4,905	5,891
Deferred rent	4,529	3,222	3,453
Other liabilities	2,813	1,081	4,504
Net cash provided by operating activities	227,941	191,713	173,836
Cash flows from investing activities:
Capital expenditures-property and equipment	(173,475)	(125,445)	(111,478)
Investment in unconsolidated affiliates			(1,180)
Proceeds from sale of other concept, net			1,387
Proceeds from sale of property and equipment, including insurance proceeds	272	1,205	23
Net cash used in investing activities	(173,203)	(124,240)	(111,248)
Cash flows from financing activities:
Repayments of revolving credit facility	(25,000)
Proceeds from financing lease obligation	3,000
Repurchase of shares of common stock	(11,397)	(42,744)	(12,761)
Proceeds from noncontrolling interest contributions and other		764
Payment of debt assumed, net of cash acquired, in acquisition of noncontrolling interest		(1,050)
Distributions to noncontrolling interests	(3,911)	(3,856)	(3,116)
Excess tax benefits from share-based compensation	4,540	2,885	4,887
Proceeds from stock option and other deposits, net	1,422	1,083	593
Indirect repurchase of shares for minimum tax withholdings	(8,572)	(6,843)	(6,958)
Principal payments on long-term debt and capital lease obligations	(128)	(411)	(369)
Proceeds from exercise of stock options	4,696	5,280	15,141
Dividends paid to shareholders	(46,176)	(31,333)	(46,877)
Net cash used in financing activities	(81,526)	(76,225)	(49,460)
Net (decrease) increase in cash and cash equivalents	(26,788)	(8,752)	13,128
Cash and cash equivalents—beginning of year	86,122	94,874	81,746
Cash and cash equivalents—end of year	59,334	86,122	94,874
Supplemental disclosures of cash flow information:
Interest paid, net of amounts capitalized	2,321	2,374	2,400
Income taxes paid	39,581	34,342	27,156
Capital expenditures included in current liabilities	$ 3,726	1,115	$ 1,383
Supplemental schedule of noncash financing activities:
Stock acquisition on noncontrolling interest in franchise restaurant		$ 1,284