CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (Unaudited) (USD $) In Thousands, unless otherwise specified	9 Months Ended
	May 02, 2014	May 03, 2013
Cash flows from operating activities:
Net income	$ 92,943	$ 82,962
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	50,601	49,000
Loss on disposition of property and equipment	3,159	2,324
Share-based compensation	6,132	10,996
Excess tax benefit from share-based compensation	(612)	(1,961)
Changes in assets and liabilities:
Inventories	(691)	9,136
Other current assets	(3,918)	(3,882)
Accounts payable	(38,666)	(28,539)
Other current liabilities	(8,208)	(16,550)
Other long-term assets and liabilities	457	3,213
Net cash provided by operating activities	101,197	106,699
Cash flows from investing activities:
Purchase of property and equipment	(63,195)	(46,178)
Proceeds from sale of property and equipment	1,572	550
Proceeds from insurance recoveries of property and equipment	858	440
Net cash used in investing activities	(60,765)	(45,188)
Cash flows from financing activities:
Principal payments under long-term debt and other long-term obligations	(1)	(125,087)
(Taxes withheld) and proceeds from issuance of share-based compensation awards, net	(8,430)	5,195
Excess tax benefit from share-based compensation	612	1,961
Purchases and retirement of common stock	(12,473)	(3,570)
Dividends on common stock	(53,619)	(33,515)
Net cash used in financing activities	(73,911)	(155,016)
Net decrease in cash and cash equivalents	(33,479)	(93,505)
Cash and cash equivalents, beginning of period	121,718	151,962
Cash and cash equivalents, end of period	88,239	58,457
Cash paid during the period for:
Interest, net of amounts capitalized	11,950	29,670
Income taxes	48,675	35,659
Supplemental schedule of non-cash investing and financing activity:
Capital expenditures accrued in accounts payable	4,985	3,892
Change in fair value of interest rate swaps	3,361	17,493
Change in deferred tax asset for interest rate swaps	(1,296)	(6,711)
Dividends declared but not yet paid	$ 41,900	$ 11,886