CONSOLIDATED STATEMENTS OF CASH FLOWS $ in Thousands	12 Months Ended
	Jul. 31, 2015 USD ($)	Aug. 01, 2014 USD ($)	Aug. 02, 2013 USD ($)
Cash flows from operating activities:
Net income	$ 163,903	$ 132,128	$ 117,265
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	72,955	68,389	66,120
Loss on disposition of property and equipment	6,872	5,163	4,057
Share-based compensation	16,210	7,924	17,839
Excess tax benefit from share-based compensation	(4,705)	(1,248)	(2,332)
Changes in assets and liabilities:
Accounts receivable	4,654	(6,762)	(1,333)
Income taxes receivable	2,973	(1,725)	0
Inventories	12,368	(18,739)	(3,420)
Prepaid expenses and other current assets	(2,170)	651	(1,243)
Other assets	(1,659)	(1,701)	(1,033)
Accounts payable	34,640	(12,160)	9,366
Taxes withheld and accrued	2,800	1,185	(4,628)
Accrued employee compensation	6,485	(1,847)	(4,143)
Accrued employee benefits	1,667	1,573	(2,069)
Deferred revenues	9,155	5,727	6,402
Other current liabilities	4,034	(1,960)	6,628
Other long-term obligations	11,090	3,865	5,895
Deferred income taxes	(7,217)	(2,838)	(4,872)
Net cash provided by operating activities	334,055	177,625	208,499
Cash flows from investing activities:
Purchase of property and equipment	(90,855)	(91,646)	(74,417)
Proceeds from insurance recoveries of property and equipment	365	1,082	456
Proceeds from sale of property and equipment	1,876	1,749	555
Net cash used in investing activities	(88,614)	(88,815)	(73,406)
Cash flows from financing activities:
Proceeds from issuance of long-term debt	406,250	0	0
(Taxes withheld) and proceeds from issuance of share-based compensation awards, net	(4,816)	(8,457)	6,454
Principal payments under long-term debt and other long-term obligations	(406,250)	(1)	(125,153)
Purchases and retirement of common stock	0	(12,473)	(3,570)
Deferred financing costs	(3,537)	0	0
Dividends on common stock	(95,699)	(71,484)	(45,400)
Excess tax benefit from share-based compensation	4,705	1,248	2,332
Net cash used in financing activities	(99,347)	(91,167)	(165,337)
Net increase (decrease) in cash and cash equivalents	146,094	(2,357)	(30,244)
Cash and cash equivalents, beginning of year	119,361	121,718	151,962
Cash and cash equivalents, end of year	265,455	119,361	121,718
Cash paid during the year for:
Interest, net of amounts capitalized	15,356	15,856	29,959
Income taxes	69,948	66,444	47,550
Supplemental schedule of non-cash investing and financing activities:
Capital expenditures accrued in accounts payable	5,800	5,767	6,852
Change in fair value of interest rate swaps	1,641	3,058	23,620
Change in deferred tax asset for interest rate swaps	(633)	(1,179)	(9,074)
Dividends declared but not yet paid	$ 99,678	$ 23,997	$ 17,847