CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2015	Jul. 01, 2014
Cash flows from operating activities:
Net income	$ 63,147	$ 52,567
Adjustments to reconcile net income to cash provided by operating activities:
Depreciation and amortization expenses	42,335	40,785
Deferred income taxes	1,146	(190)
Impairment of assets and lease terminations		617
Stock-based compensation	9,677	7,738
Tax impact of stock options exercised, net of cancellations	7,838	5,032
Excess tax benefit related to stock options exercised	(7,826)	(4,923)
Other	1,346	897
Changes in assets and liabilities:
Accounts receivable	6,359	923
Other receivables	28,914	23,956
Inventories	(3,211)	(901)
Prepaid expenses	(8,389)	574
Other assets	(6,010)	(2,945)
Accounts payable	(8,562)	12,076
Income taxes receivable/payable	11,466	1,762
Other accrued expenses	(17,264)	(15,860)
Cash provided by operating activities	120,966	122,108
Cash flows from investing activities:
Additions to property and equipment	(59,473)	(57,810)
Additions to intangible assets	(948)	(646)
Cash used in investing activities	(60,421)	(58,456)
Cash flows from financing activities:
Deemed landlord financing proceeds		(5,105)
Deemed landlord financing payments	(1,497)	(1,246)
Borrowings on credit facility	25,000	25,000
Proceeds from exercise of stock options	16,892	8,620
Excess tax benefit related to stock options exercised	7,826	4,923
Cash dividends paid	(16,438)	(14,137)
Treasury stock purchases	(84,197)	(123,187)
Payment for future treasury stock purchases under accelerated stock repurchase agreement	(4,601)	(4,904)
Cash used in financing activities	(57,015)	(99,826)
Net change in cash and cash equivalents	3,530	(36,174)
Cash and cash equivalents at beginning of period	58,018	61,751
Cash and cash equivalents at end of period	61,548	25,577
Supplemental disclosures:
Interest paid	2,988	2,605
Income taxes paid	3,850	13,703
Construction payable	$ 13,531	$ 3,342