CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Aug. 02, 2013	Aug. 03, 2012	Jul. 29, 2011
Cash flows from operating activities:
Net income	$ 117,265	$ 103,081	$ 85,208
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	66,120	64,467	62,788
Loss (gain) on disposition of property and equipment	4,057	2,702	(1,418)
Impairment	0	0	3,219
Share-based compensation	17,839	14,420	9,796
Excess tax benefit from share-based compensation	(2,332)	(4,502)	(4,108)
Changes in assets and liabilities:
Accounts receivable	(1,333)	(2,330)	1,251
Income taxes receivable	0	7,898	(7,898)
Inventories	(3,420)	(1,720)	2,532
Prepaid expenses and other current assets	(1,243)	(2,405)	(391)
Other assets	(1,033)	(4,725)	(803)
Accounts payable	9,366	1,592	(16,539)
Taxes withheld and accrued	(4,628)	7,369	(652)
Accrued employee compensation	(4,143)	17,729	(10,680)
Accrued employee benefits	(2,069)	(2,701)	(1,690)
Deferred revenues	6,402	5,066	5,086
Other current liabilities	6,628	2,651	(7,863)
Other long-term obligations	5,895	9,973	12,576
Deferred income taxes	(4,872)	1,257	7,798
Net cash provided by operating activities	208,499	219,822	138,212
Cash flows from investing activities:
Purchase of property and equipment	(74,417)	(80,922)	(77,962)
Proceeds from insurance recoveries of property and equipment	456	752	276
Proceeds from sale of property and equipment	555	623	8,197
Net cash used in investing activities	(73,406)	(79,547)	(69,489)
Cash flows from financing activities:
Proceeds from issuance of long-term debt	0	92,600	687,000
Proceeds from exercise of share-based compensation awards	6,454	17,602	20,540
Principal payments under long-term debt and other long-term obligations	(125,153)	(117,733)	(717,263)
Purchases and retirement of common stock	(3,570)	(14,923)	(33,563)
Deferred financing costs	0	(263)	(5,125)
Dividends on common stock	(45,400)	(22,372)	(19,846)
Excess tax benefit from share-based compensation	2,332	4,502	4,108
Net cash used in financing activities	(165,337)	(40,587)	(64,149)
Net (decrease) increase in cash and cash equivalents	(30,244)	99,688	4,574
Cash and cash equivalents, beginning of period	151,962	52,274	47,700
Cash and cash equivalents, end of period	121,718	151,962	52,274
Cash paid during the period for:
Interest, net of amounts capitalized	29,959	50,357	46,301
Income taxes	47,550	18,768	32,248
Supplemental schedule of non-cash financing activity:
Change in fair value of interest rate swaps	23,620	17,223	14,677
Change in deferred tax asset for interest rate swaps	(9,074)	(349)	(3,860)
Dividends declared but not yet paid	$ 17,847	$ 9,732	$ 5,190