CONSOLIDATED STATEMENTS OF CASH FLOWS $ in Thousands	12 Months Ended
	Aug. 02, 2019 USD ($)	Aug. 03, 2018 USD ($)	Jul. 28, 2017 USD ($)
Cash flows from operating activities:
Net income	$ 223,401	$ 247,620	$ 201,899
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	107,537	93,692	86,319
Loss on disposition of property and equipment	10,265	7,119	5,585
Share-based compensation	8,181	6,977	8,458
Excess tax benefit from share-based compensation	0	0	(2,636)
Changes in assets and liabilities:
Accounts receivable	(3,261)	(1,380)	1,273
Income taxes receivable	(9,449)	4,265	14,555
Inventories	1,295	114	(4,059)
Prepaid expenses and other current assets	(1,985)	(500)	(1,274)
Other assets	2,852	(1,400)	(4,344)
Accounts payable	9,889	3,937	(14,098)
Taxes withheld and accrued	1,127	344	(836)
Accrued employee compensation	7,311	(10,389)	9,752
Accrued employee benefits	(489)	(1,343)	(1,169)
Deferred revenues	5,442	3,916	8,348
Other current liabilities	3,492	(8,121)	4,470
Other long-term obligations	1,362	157	3,461
Deferred income taxes	(4,174)	(14,388)	5,063
Net cash provided by operating activities	362,796	330,620	320,767
Cash flows from investing activities:
Purchase of property and equipment	(138,293)	(152,249)	(110,591)
Proceeds from insurance recoveries of property and equipment	753	616	483
Proceeds from sale of property and equipment	151	411	503
Purchase of investment in unconsolidated subsidiary	(89,100)	0	0
Notes receivable from unconsolidated subsidiary	(15,085)	0	0
Net cash used in investing activities	(241,574)	(151,222)	(109,605)
Cash flows from financing activities:
Proceeds from issuance of long-term debt	400,000	0	0
(Taxes withheld) and proceeds from issuance of share-based compensation awards, net	(2,497)	(3,816)	(6,896)
Principal payments under long-term debt	(400,000)	0	0
Purchases and retirement of common stock	0	(14,772)	0
Deferred financing costs	(3,022)	0	0
Dividends on common stock	(193,475)	(207,155)	(196,867)
Excess tax benefit from share-based compensation	0	0	2,636
Net cash used in financing activities	(198,994)	(225,743)	(201,127)
Net (decrease) increase in cash and cash equivalents	(77,772)	(46,345)	10,035
Cash and cash equivalents, beginning of year	114,656	161,001	150,966
Cash and cash equivalents, end of year	36,884	114,656	161,001
Cash paid during the year for:
Interest, net of amounts capitalized	12,100	17,272	12,847
Income taxes	56,450	43,471	78,092
Supplemental schedule of non-cash investing and financing activities:
Capital expenditures accrued in accounts payable	9,508	8,183	6,743
Change in fair value of interest rate swaps	(15,466)	13,103	15,402
Change in deferred tax asset for interest rate swaps	3,868	(4,189)	(5,891)
Dividends declared but not yet paid	$ 32,859	$ 31,784	$ 31,296