Document and Entity Information Document - shares	9 Months Ended
	Sep. 30, 2016	Nov. 04, 2016
Document and Entity Information [Abstract]
Entity Registrant Name	CrossAmerica Partners LP
Entity Central Index Key	0001538849
Document Type	10-Q
Document Period End Date	Sep. 30, 2016
Amendment Flag	false
Document Fiscal Year Focus	2016
Document Fiscal Period Focus	Q3
Trading Symbol	CAPL
Current Fiscal Year End Date	--12-31
Entity Well-known Seasoned Issuer	Yes
Entity Voluntary Filers	No
Entity Current Reporting Status	Yes
Entity Filer Category	Accelerated Filer
Entity Common Stock, Shares Outstanding		33,513,476