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Fair Value Measurements, Assets Measured at Fair Value on a Nonrecurring Basis (Details)
$ in Thousands
3 Months Ended 9 Months Ended
May 01, 2020
USD ($)
Store
May 03, 2019
USD ($)
May 01, 2020
USD ($)
May 03, 2019
USD ($)
Oct. 10, 2019
USD ($)
Fair Value Assets Measured on Nonrecurring Basis [Abstract]          
Number of leased stores determined to be impaired | Store 5        
Impairment charge $ 18,336 $ 0 $ 18,336 $ 0  
Maple Street Biscuit Company [Member] | Nonrecurring [Member]          
Fair Value Assets Measured on Nonrecurring Basis [Abstract]          
Property and equipment         $ 13,580
Tradename [1]         19,460
Goodwill         6,364
Total assets at fair value         39,404
Maple Street Biscuit Company [Member] | Nonrecurring [Member] | Cost Approach [Member]          
Fair Value Assets Measured on Nonrecurring Basis [Abstract]          
Estimated replacement cost per store         $ 500
Maple Street Biscuit Company [Member] | Nonrecurring [Member] | Present Value of Estimated Cash Flow [Member] | Royalty Rate [Member]          
Fair Value Assets Measured on Nonrecurring Basis [Abstract]          
Tradename, measurement input         0.025
Maple Street Biscuit Company [Member] | Nonrecurring [Member] | Present Value of Estimated Cash Flow [Member] | Discount Rate [Member]          
Fair Value Assets Measured on Nonrecurring Basis [Abstract]          
Tradename, measurement input         0.120
Maple Street Biscuit Company [Member] | Nonrecurring [Member] | Level 1 [Member]          
Fair Value Assets Measured on Nonrecurring Basis [Abstract]          
Property and equipment         $ 0
Tradename [1]         0
Goodwill         0
Total assets at fair value         0
Maple Street Biscuit Company [Member] | Nonrecurring [Member] | Level 2 [Member]          
Fair Value Assets Measured on Nonrecurring Basis [Abstract]          
Property and equipment         0
Tradename [1]         0
Goodwill         0
Total assets at fair value         0
Maple Street Biscuit Company [Member] | Nonrecurring [Member] | Level 3 [Member]          
Fair Value Assets Measured on Nonrecurring Basis [Abstract]          
Property and equipment         13,580
Tradename [1]         19,460
Goodwill         6,364
Total assets at fair value         $ 39,404
[1] Included in the Condensed Consolidated Balance Sheets as other assets.