| Document and Entity Information | Apr. 23, 2024 |
| Cover [Abstract] | |
| Document Type | 8-K/A |
| Document Period End Date | Apr. 23, 2024 |
| Entity Registrant Name | ERIE INDEMNITY COMPANY |
| Entity Incorporation, State or Country Code | PA |
| Entity File Number | 0-24000 |
| Entity Tax Identification Number | 25-0466020 |
| Entity Address, Address Line One | 100 Erie Insurance Place, |
| Entity Address, City or Town | Erie, |
| Entity Address, State or Province | PA |
| Entity Address, Postal Zip Code | 16530 |
| City Area Code | 814 |
| Local Phone Number | 870-2000 |
| Written Communications | false |
| Soliciting Material | false |
| Pre-commencement Tender Offer | false |
| Pre-commencement Issuer Tender Offer | false |
| Title of 12(b) Security | Class A common stock, |
| Trading Symbol | ERIE |
| Security Exchange Name | NASDAQ |
| Entity Emerging Growth Company | false |
| Entity Central Index Key | 0000922621 |
| Amendment Flag | true |
| Amendment Description | This Amendment No. 1 to the Current Report on Form 8-K filed by Erie Indemnity Company (the “Company”) on April 25, 2024 corrects the ex-date for the dividend information reported in Item 8.01. In accordance with Nasdaq Rule 11140(b)(1), beginning May 28, 2024, the ex-dividend date will be the same as the record date. The corrected information regarding the dividend appears in Item 8.01 below. |
