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Commitments and Contingencies (Details)
$ in Thousands
12 Months Ended
Jul. 31, 2000
Store
Jul. 28, 2000
Store
May 01, 2020
USD ($)
Property
Loss Contingencies [Abstract]      
Provision for non-performance by primary obligor under lease arrangements     $ 324
Amount to be paid to landlord for purchase of properties     200,835
Earnest money deposit     6,000
Sale-leaseback Transactions in 2000 [Member] | Owned Stores [Member]      
Loss Contingencies [Abstract]      
Number of owned stores involved in sale-lease back transactions | Store 65 65  
Standby Letters of Credit [Member] | Revolving Credit Facility [Member]      
Loss Contingencies [Abstract]      
Letters of credit outstanding     $ 6,729
Lease Performance Guarantee [Member]      
Loss Contingencies [Abstract]      
Number of properties for which the company is secondarily liable for lease payments | Property     2