CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands		9 Months Ended
		Apr. 30, 2021	May 01, 2020
Cash flows from operating activities:
Net income (loss)		$ 218,150	$ (57,541)
Net loss from unconsolidated subsidiary		0	142,442
Adjustments to reconcile net income (loss) to net cash provided by operating activities:
Depreciation and amortization		80,932	88,292
Loss on disposition of property and equipment		2,669	5,083
Gain on sale and leaseback transaction		(217,722)	0
Impairment		0	19,000
Share-based compensation		7,188	4,171
Noncash lease expense		41,601	47,045
Amortization of asset recognized from gain on sale and leaseback transactions		9,551	0
Changes in assets and liabilities:
Inventories		6,709	8,906
Other current assets		(9,896)	3,075
Accounts payable		10,161	(46,045)
Other current liabilities		24,164	(49,409)
Long-term operating lease liabilities		(46,202)	(36,350)
Deferred income taxes		70,581	(39,544)
Other long-term assets and liabilities		14,651	(1,893)
Net cash provided by operating activities		212,537	87,232
Cash flows from investing activities:
Purchase of property and equipment		(45,135)	(83,631)
Proceeds from insurance recoveries of property and equipment		1,020	986
Proceeds from sale of property and equipment		149,910	1,827
Notes receivable from unconsolidated subsidiary		0	(35,500)
Acquisition of business, net of cash acquired		(1,500)	(32,971)
Net cash provided by (used in) investing activities		104,295	(149,289)
Cash flows from financing activities:
Proceeds from issuance of long-term debt		60,000	762,000
Taxes withheld from issuance of share-based compensation awards		(2,127)	(2,005)
Principal payments under long-term debt		(395,049)	(222,000)
Purchases and retirement of common stock		0	(55,007)
Deferred financing costs		(420)	0
Dividends on common stock		(31,645)	(94,485)
Net cash provided by (used in) financing activities		(369,241)	388,503
Net increase (decrease) in cash and cash equivalents		(52,409)	326,446
Cash and cash equivalents, beginning of period		436,996	36,884
Cash and cash equivalents, end of period		384,587	363,330
Cash paid during the period for:
Interest, net of amounts capitalized		30,522	12,927
Income taxes		1,435	5,277
Supplemental schedule of non-cash investing and financing activities:
Capital expenditures accrued in accounts payable	[1]	3,497	2,159
Change in fair value of interest rate swaps	[1]	8,827	(16,591)
Change in deferred tax asset for interest rate swaps	[1]	(2,202)	4,050
Dividends declared but not yet paid	[1]	$ 525	$ 32,068

[1] See Note 10 for additional supplemental disclosures related to leases.