Leases, Sale and Leaseback Transactions (Details) $ in Thousands			3 Months Ended		12 Months Ended
	Aug. 04, 2020 USD ($) Store	Jul. 29, 2020 USD ($) Store	Oct. 29, 2021 USD ($)	Oct. 30, 2020 USD ($)	Jul. 31, 2009 Store	Jul. 30, 2021 USD ($)	[1]
Sale Leaseback Transactions [Abstract]
Initial lease term			20 years
Aggregate purchase price, net of closing costs	$ 146,357
Aggregate initial annual rent payment for lease properties	$ 10,393
Percentage of increase in annual rental payments in initial terms	1.00%
Gain on sale and leaseback transaction	$ 217,722		$ 0	$ 217,722
Right-of-use assets, non-cash	175,960
Operating lease right-of-use assets	309,624		966,866			$ 974,477
Operating lease liabilities	$ 133,663		$ 795,527
Maximum [Member]
Sale Leaseback Transactions [Abstract]
Lease renewal option			50 years
Owned Stores [Member]
Sale Leaseback Transactions [Abstract]
Number of owned stores involved in sale-lease back transactions | Store	62
Aggregate purchase price, net of closing costs		$ 198,083
Sale-leaseback Transactions in 2009 [Member] | Owned Stores [Member]
Sale Leaseback Transactions [Abstract]
Number of owned stores involved in sale-lease back transactions | Store					15
Initial lease term			20 years
Lease renewal option			20 years
Sale-leaseback Transactions in 2009 [Member] | Retail Distribution Center [Member]
Sale Leaseback Transactions [Abstract]
Initial lease term			15 years
Lease renewal option			20 years
Sale-leaseback Transactions in 2000 [Member]
Sale Leaseback Transactions [Abstract]
Initial lease term			20 years
Remaining property purchased			$ 3,200
Aggregate initial annual rent payment for lease properties			$ 14,379
Percentage of increase in annual rental payments in initial terms			1.00%
Gain on sale and leaseback transaction			$ 69,954
Right-of-use assets, non-cash			79,049
Operating lease right-of-use assets			261,698
Operating lease liabilities			$ 182,649
Sale-leaseback Transactions in 2000 [Member] | Maximum [Member]
Sale Leaseback Transactions [Abstract]
Lease renewal option			50 years
Sale-leaseback Transactions in 2000 [Member] | Owned Stores [Member]
Sale Leaseback Transactions [Abstract]
Number of owned stores involved in sale-lease back transactions | Store		65
Number of stores completed in sale leaseback transaction | Store		64

[1] This Condensed Consolidated Balance Sheet has been derived from the audited Consolidated Balance Sheet as of July 30, 2021, as filed with the Securities and Exchange Commission in the Company’s Annual Report on Form 10-K for the fiscal year ended July 30, 2021.