Document and Entity Information	6 Months Ended
	Jun. 30, 2014	Jul. 18, 2014 Class A Common Stock	Jul. 18, 2014 Class B Common Stock
Entity Registrant Name	ERIE INDEMNITY CO
Entity Central Index Key	0000922621
Document Type	10-Q
Amendment Flag	false
Document Period End Date	Jun. 30, 2014
Document Fiscal Year Focus	2014
Document Fiscal Period Focus	Q2
Current Fiscal Year End Date	--12-31
Entity Well-known Seasoned Issuer	Yes
Entity Current Reporting Status	Yes
Entity Filer Category	Large Accelerated Filer
Entity Common Stock, Shares Outstanding		46,189,068	2,542