CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	6 Months Ended
	Jul. 01, 2017	Jun. 25, 2016
Cash flows from operating activities:
Net income	$ 220,960	$ 224,093
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	80,774	67,634
Loss on disposition of property and equipment	198	233
Share-based compensation expense	15,079	11,212
Deferred income taxes	(7,742)	(3,618)
Change in assets and liabilities:
Inventories	(98,598)	(82,124)
Prepaid expenses and other current assets	148	19,897
Accounts payable	(8,702)	3,145
Accrued employee compensation	(10,982)	(14,940)
Other accrued expenses	(33,895)	(9,972)
Income taxes	67,289	59,424
Other	2,979	3,214
Net cash provided by operating activities	227,508	278,198
Cash flows from investing activities:
Capital expenditures	(96,610)	(100,956)
Proceeds from sale of property and equipment	10,781	40
Net cash used in investing activities	(85,829)	(100,916)
Cash flows from financing activities:
Borrowings under senior credit facility	578,000	595,000
Repayments under senior credit facility	(398,000)	(547,500)
Debt issuance costs	(313)	(1,380)
Principal payments under capital lease obligations	(669)	(513)
Repurchase of shares to satisfy tax obligations	(653)	(843)
Repurchase of common stock	(248,147)	(106,905)
Net proceeds from issuance of common stock	7,835	30,943
Cash dividends paid to stockholders	(65,855)	(58,785)
Net cash used in financing activities	(127,802)	(89,983)
Net change in cash and cash equivalents	13,877	87,299
Cash and cash equivalents at beginning of period	53,916	63,813
Cash and cash equivalents at end of period	67,793	151,112
Cash paid during the period for:
Interest	5,218	2,153
Income taxes	67,752	73,205
Supplemental disclosures of non-cash activities:
Property and equipment acquired through capital lease	10,734	5,218
Non-cash accruals for construction in progress	$ 15,377	$ 32,075