CONSOLIDATED STATEMENTS OF CASH FLOWS (USD $) In Thousands	6 Months Ended
	Jun. 28, 2011	Jun. 29, 2010
Cash flows from operating activities:
Net income	$ 45,204	$ 37,895
Adjustments to reconcile net income to cash provided by operating activities:
Depreciation and amortization	34,936	36,181
Realized loss on derivative financial instruments		7,376
Deferred income taxes	3,316	351
Stock-based compensation	5,946	6,582
Tax impact of stock options exercised, net of cancellations	600	(53)
Excess tax benefit related to stock options exercised	(497)	(1,772)
Other	412	(656)
Changes in assets and liabilities:
Accounts receivable	10,383	5,083
Other receivables	7,323	12,467
Inventories	(9,212)	(4,586)
Prepaid expenses	3,121	2,014
Other assets	(2,122)	940
Accounts payable	6,051	(2,298)
Income taxes payable	2,091	(8,950)
Termination of derivative financial instruments		(7,376)
Other accrued expenses	(13,796)	(7,051)
Cash provided by operating activities	93,756	76,147
Cash flows from investing activities:
Additions to property and equipment	(30,176)	(17,865)
Cash used in investing activities	(30,176)	(17,865)
Cash flows from financing activities:
Deemed landlord financing proceeds	1,612	1,635
Deemed landlord financing payments	(820)	(752)
Proceeds from exercise of employee stock options	7,475	11,587
Excess tax benefit related to stock options exercised	497	1,772
Repayment of credit facility		(30,000)
Purchase of treasury stock	(95,030)	(29,946)
Cash used in financing activities	(86,266)	(45,704)
Net change in cash and cash equivalents	(22,686)	12,578
Cash and cash equivalents at beginning of period	81,619	73,715
Cash and cash equivalents at end of period	58,933	86,293
Supplemental disclosures:
Interest paid	2,065	14,281
Income taxes paid	$ 11,248	$ 18,318