CONSOLIDATED 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	$ 116,523	$ 101,276	$ 114,356
Adjustments to reconcile net income to cash provided by operating activities:
Depreciation and amortization	85,563	82,835	78,558
Deferred income taxes	1,184	204	4,633
Impairment of assets and lease terminations	6,011	245	3,294
Stock-based compensation	20,053	16,817	14,135
Tax impact of stock options exercised, net of cancellations	12,501	8,906	7,159
Excess tax benefit related to stock options exercised	(12,309)	(8,861)	(7,765)
Other	2,615	2,059	(464)
Changes in assets and liabilities:
Accounts receivable	1,011	(5,079)	4,477
Other receivables	(10,331)	(6,867)	(6,486)
Inventories	(755)	2,223	(6,642)
Prepaid expenses	(3,743)	4,362	(2,708)
Other assets	(5,799)	(3,645)	(3,997)
Accounts payable	(12,931)	18,180	(11,580)
Income taxes receivable/payable	(1,356)	(12,854)	(5,742)
Other accrued expenses	37,186	39,848	23,557
Cash provided by operating activities	235,423	239,649	204,785
Cash flows from investing activities:
Additions to property and equipment	(153,941)	(113,982)	(106,289)
Additions to intangible assets	(1,760)	(1,879)	(1,654)
Cash used in investing activities	(155,701)	(115,861)	(107,943)
Cash flows from financing activities:
Deemed landlord financing proceeds	14,266	14,143	13,672
Deemed landlord financing payments	(3,118)	(2,650)	(2,143)
Borrowings on credit facility	60,000	25,000
Repayments on credit facility	(60,000)	(25,000)
Proceeds from exercise of stock options	27,997	22,940	72,896
Excess tax benefit related to stock options exercised	12,309	8,861	7,765
Cash dividends paid	(35,969)	(30,332)	(27,191)
Treasury stock purchases	(109,371)	(140,483)	(183,659)
Cash used in financing activities	(93,886)	(127,521)	(118,660)
Net change in cash and cash equivalents	(14,164)	(3,733)	(21,818)
Cash and cash equivalents at beginning of period	58,018	61,751	83,569
Cash and cash equivalents at end of period	43,854	58,018	61,751
Supplemental disclosures:
Interest paid	6,057	5,430	4,602
Income taxes paid	30,410	41,074	37,259
Construction payable	$ 13,500	$ 10,124	$ 6,397