Document and Entity Information - shares	9 Months Ended
	Sep. 30, 2023	Nov. 03, 2023
Document Information [Line Items]
Entity Registrant Name	REGENCY CENTERS CORPORATION
Entity Central Index Key	0000910606
Document Type	10-Q
Document Period End Date	Sep. 30, 2023
Amendment Flag	false
Document Fiscal Year Focus	2023
Document Fiscal Period Focus	Q3
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Emerging Growth Company	false
Entity Small Business	false
Entity Shell Company	false
Current Fiscal Year End Date	--12-31
Entity Filer Category	Large Accelerated Filer
Entity Common Stock, Shares Outstanding		184,580,981
Entity File Number	1-12298
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
Document Quarterly Report	true
Document Transition Report	false
Entity Incorporation, State or Country Code	FL
Common Stock [Member]
Document Information [Line Items]
Trading Symbol	REG
Title of 12(b) Security	Common Stock, $.01 par value
Security Exchange Name	NASDAQ
6.250% Series A Cumulative Redeemable Preferred Stock [Member]
Document Information [Line Items]
Trading Symbol	REGCP
Title of 12(b) Security	6.250% Series A Cumulative Redeemable Preferred Stock, par value $0.01 per share
Security Exchange Name	NASDAQ
5.875% Series B Cumulative Redeemable Preferred Stock [Member]
Document Information [Line Items]
Trading Symbol	REGCO
Title of 12(b) Security	5.875% Series B Cumulative Redeemable Preferred Stock, par value $0.01 per share
Security Exchange Name	NASDAQ
Partnership Interest [Member]
Document Information [Line Items]
Entity Registrant Name	REGENCY CENTERS, L.P.
Entity Central Index Key	0001066247
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Emerging Growth Company	false
Entity Small Business	false
Entity Shell Company	false
Entity Filer Category	Non-accelerated Filer
Entity File Number	0-24763
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
Document Quarterly Report	true
Document Transition Report	false
Entity Incorporation, State or Country Code	DE