Consolidated Statements of Cash Flows (unaudited) (USD $)	9 Months Ended
	Sep. 30, 2014	Sep. 24, 2013
Cash flows from operations:
Net income	$ 130,801,000	$ 141,921,000
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	90,681,000	75,961,000
Stock-based compensation expense	8,032,000	7,841,000
Excess tax benefit from exercise of stock options	(2,733,000)	(7,818,000)
Increase (Decrease) in Deferred Income Taxes	(12,410,000)	7,991,000
Other	1,434,000	3,538,000
Changes in operating assets and liabilities, excluding the effect of acquisitions and dispositions:
Trade and other accounts receivable, net	17,924,000	2,241,000
Inventories	1,486,000	299,000
Prepaid expenses and other	(7,121,000)	4,920,000
Deposits and other	237,000	1,005,000
Accounts payable	3,100,000	425,000
Accrued expenses	(35,349,000)	(26,741,000)
Deferred rent	(282,000)	3,464,000
Other long-term liabilities	(1,162,000)	(3,536,000)
Net cash provided by operating activities	194,638,000	211,511,000
Cash flows from investing activities:
Additions to property and equipment	(155,348,000)	(124,334,000)
Acquisitions, net of cash acquired	0	2,446,000
Proceeds from sale-leaseback transactions	10,315,000	2,085,000
Purchases of investments	0	(97,919,000)
Proceeds from Sale, Maturity and Collection of Investments	0	97,936,000
Net cash used in investing activities	(145,033,000)	(124,678,000)
Cash flows from financing activities:
Proceeds from Issuance of Long-term Debt	100,000,000	0
Repurchase of common stock	(134,247,000)	(200,465,000)
Exercise of employee stock options	863,000	456,000
Tax benefit from exercise of stock options	2,733,000	7,818,000
Proceeds from issuance of common stock under employee benefit plans	2,374,000	2,178,000
Payment of Deferred Acquisition Holdback	(270,000)	0
Payments of Debt Issuance Costs	(193,000)	0
Net cash provided by (used in) financing activities	(28,740,000)	(190,013,000)
Net increase (decrease) in cash and cash equivalents	20,865,000	(103,180,000)
Cash and cash equivalents at beginning of period	125,245,000	297,141,000
Cash and cash equivalents at end of period	$ 146,110,000	$ 193,961,000