Consolidated Statements of Cash Flows (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 30, 2014	Dec. 31, 2013	Dec. 25, 2012
Cash flows from operating activities:
Net income including noncontrolling interests	$ 90,977	$ 84,087	$ 73,801
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	59,179	51,562	46,717
Deferred income taxes	(480)	(947)	(2,166)
Loss on disposition of assets	4,987	3,794	2,805
Gain on sale of other concept		(1,800)
Impairment and closure costs	626	278	1,459
Equity income from investments in unconsolidated affiliates	(1,602)	(713)	(428)
Distributions of income received from investments in unconsolidated affiliates	541	444	429
Provision for doubtful accounts	6	86	17
Share-based compensation expense	14,883	14,740	13,193
Changes in operating working capital:
Receivables	(8,634)	(9,063)	(4,953)
Inventories	(2,278)	(1,057)	(119)
Prepaid expenses and other current assets	(277)	(3,066)	(146)
Other assets	(1,231)	(4,720)	(2,773)
Accounts payable	5,366	5,712	1,736
Deferred revenue-gift cards	16,660	9,555	8,842
Accrued wages	1,381	3,964	1,329
Excess tax benefits from share-based compensation	(2,885)	(4,887)	(3,605)
Prepaid income taxes and income taxes payable	5,128	7,931	806
Accrued taxes and licenses	158	4,088	872
Other accrued liabilities	4,905	5,891	3,842
Deferred rent	3,222	3,453	3,035
Other liabilities	1,081	4,504	3,353
Net cash provided by operating activities	191,713	173,836	148,046
Cash flows from investing activities:
Capital expenditures-property and equipment	(125,445)	(111,478)	(86,985)
Acquisition of franchise restaurants, net of cash acquired			(4,297)
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, and other	1,205	23	1,128
Net cash used in investing activities	(124,240)	(111,248)	(90,154)
Cash flows from financing activities:
(Repayments of) proceeds from revolving credit facility			(10,000)
Repurchase of shares of common stock	(42,744)	(12,761)	(29,421)
Proceeds from noncontrolling interest contributions and other	764		1,285
Payment of debt assumed, net of cash acquired, in acquisition of noncontrolling interest	(1,050)
Distributions to noncontrolling interests	(3,856)	(3,116)	(2,712)
Excess tax benefits from share-based compensation	2,885	4,887	3,605
Proceeds from stock option and other deposits, net	1,083	593	172
Indirect repurchase of shares for minimum tax withholdings	(6,843)	(6,958)	(3,733)
Principal payments on long-term debt and capital lease obligations	(411)	(369)	(303)
Proceeds from exercise of stock options	5,280	15,141	10,670
Dividends paid to shareholders	(31,333)	(46,877)	(24,486)
Net cash used in financing activities	(76,225)	(49,460)	(54,923)
Net (decrease) increase in cash and cash equivalents	(8,752)	13,128	2,969
Cash and cash equivalents-beginning of year	94,874	81,746
Cash and cash equivalents-end of year	86,122	94,874	81,746
Supplemental disclosures of cash flow information:
Interest paid, net of amounts capitalized	2,374	2,400	2,478
Income taxes paid	34,342	27,156	36,096
Capital expenditures included in accounts payable	1,115	1,383	1,065
Supplemental schedule of noncash financing activities:
Stock acquisition on noncontrolling interest in franchise restaurant	$ 1,284