CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (Unaudited) - USD ($) $ in Thousands		9 Months Ended
		May 01, 2020	May 03, 2019
Cash flows from operating activities:
Net income (loss)		$ (57,541)	$ 158,376
Net loss from unconsolidated subsidiary		142,442	0
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization		88,292	78,499
Loss on disposition of property and equipment		5,083	7,522
Impairment		19,000	0
Share-based compensation		4,171	5,672
Noncash lease expense		47,045	0
Changes in assets and liabilities:
Inventories		8,906	3,671
Other current assets		3,075	(5,158)
Accounts payable		(46,045)	(7,015)
Accrued employee compensation		(37,650)	1,161
Other current liabilities		(11,759)	5,661
Long-term operating lease liabilities		(36,350)	0
Deferred income taxes		(39,544)	(21)
Other long-term assets and liabilities		(1,893)	4,218
Net cash provided by operating activities		87,232	252,586
Cash flows from investing activities:
Purchase of property and equipment		(83,631)	(103,862)
Proceeds from insurance recoveries of property and equipment		986	603
Proceeds from sale of property and equipment		1,827	134
Notes receivable from unconsolidated subsidiary		(35,500)	0
Acquisition of business, net of cash acquired		(32,971)	0
Net cash used in investing activities		(149,289)	(103,125)
Cash flows from financing activities:
Proceeds from issuance of long-term debt		762,000	400,000
Taxes withheld from issuance of share-based compensation awards		(2,005)	(2,220)
Principal payments under long-term debt		(222,000)	(400,000)
Purchases and retirement of common stock		(55,007)	0
Deferred financing costs		0	(3,022)
Dividends on common stock		(94,485)	(91,290)
Net cash provided by (used in) financing activities		388,503	(96,532)
Net increase in cash and cash equivalents		326,446	52,929
Cash and cash equivalents, beginning of period		36,884	114,656
Cash and cash equivalents, end of period		363,330	167,585
Cash paid during the period for:
Interest, net of amounts capitalized		12,927	11,881
Income taxes		5,277	31,129
Supplemental schedule of non-cash investing and financing activities:
Capital expenditures accrued in accounts payable	[1]	2,159	4,980
Change in fair value of interest rate swaps	[1]	(16,591)	(6,629)
Change in deferred tax asset for interest rate swaps	[1]	4,050	1,663
Dividends declared but not yet paid	[1]	$ 32,068	$ 31,106

[1] *See Note 11 for additional supplemental disclosures related to leases