v3.10.0.1
Document and Entity Information - USD ($)
12 Months Ended
Aug. 03, 2018
Sep. 20, 2018
Jan. 26, 2018
Document and Entity Information [Abstract]      
Entity Registrant Name CRACKER BARREL OLD COUNTRY STORE, INC    
Entity Central Index Key 0001067294    
Current Fiscal Year End Date --08-03    
Entity Well-known Seasoned Issuer Yes    
Entity Voluntary Filers No    
Entity Current Reporting Status Yes    
Entity Filer Category Large Accelerated Filer    
Entity Public Float     $ 4,213,396,663
Entity Common Stock, Shares Outstanding   24,011,550  
Document Fiscal Year Focus 2018    
Document Fiscal Period Focus FY    
Document Type 10-K    
Amendment Flag false    
Document Period End Date Aug. 03, 2018