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