| Document and Entity Information | Jun. 01, 2020 |
| Document Information [Line Items] | |
| Document Type | 8-K |
| Amendment Flag | false |
| Document Period End Date | Jun. 1, 2020 |
| Entity Registrant Name | REGENCY CENTERS CORP |
| Entity Central Index Key | 0000910606 |
| Entity File Number | 001-12298 |
| Entity Incorporation, State or Country Code | FL |
| Entity Tax Identification Number | 59-3191743 |
| Entity Address, Address Line One | One Independent Drive |
| Entity Address, Address Line Two | Suite 114 |
| Entity Address, City or Town | Jacksonville |
| Entity Address, State or Province | FL |
| Entity Address, Postal Zip Code | 32202 |
| City Area Code | 904 |
| Local Phone Number | 598-7000 |
| Written Communications | false |
| Soliciting Material | false |
| Pre-commencement Tender Offer | false |
| Pre-commencement Issuer Tender Offer | false |
| Entity Emerging Growth Company | false |
| Security 12b Title | Common Stock, $.01 par value |
| Trading Symbol | REG |
| Security Exchange Name | NASDAQ |
| Partnership Interest [Member] | |
| Document Information [Line Items] | |
| Entity Registrant Name | REGENCY CENTERS LP |
| Entity Central Index Key | 0001066247 |
| Entity File Number | 0-24763 |
| Entity Incorporation, State or Country Code | DE |
| Entity Tax Identification Number | 59-3429602 |
| Entity Address, Address Line One | One Independent Drive |
| Entity Address, Address Line Two | Suite 114 |
| Entity Address, City or Town | Jacksonville |
| Entity Address, State or Province | FL |
| Entity Address, Postal Zip Code | 32202 |
| City Area Code | 904 |
| Local Phone Number | 598-7000 |
| Entity Emerging Growth Company | false |
