Subsequent Events	12 Months Ended
Dec. 31, 2016
Subsequent Event [Line Items]
Subsequent Events [Text Block]	16. Subsequent Events Approval of Merger with Equity One, Inc. On November 14, 2016, Regency entered into a Merger Agreement with Equity One, pursuant to which, subject to the satisfaction or waiver of certain conditions, Equity One will merge with and into the Company, with Regency being the surviving corporation (the “Merger”). The combined company will retain the Regency name and will continue to trade under the ticker symbol REG on the New York Stock Exchange ("NYSE"). The Company will expand its board of directors to 12 directors and will add three persons who served on Equity One's board of directors. The executive officers of Regency immediately prior to the effective date of the merger will continue to serve as executive officers of the combined company. On the terms and subject to the conditions set forth in the Merger Agreement, which has been unanimously approved by the boards of directors of the Company and Equity One, at the effective time of the Merger, each share of the common stock, par value $0.01 per share, of Equity One issued and outstanding immediately prior to the effective time (other than shares of Equity One owned directly by Equity One or the Company and in each case not held on behalf of third parties) will be converted into the right to receive 0.45 of a newly issued share of the common stock of the Company. The consummation of the Merger is subject to certain closing conditions, including (i) the approval of the Company’s and Equity One’s respective stockholders, (ii) the shares of Company Common Stock to be issued in the Merger will have been approved for listing on the New York Stock Exchange, subject to official notice of issuance, (iii) the absence of any temporary restraining order, preliminary or permanent injunction or other order issued by any court of competent jurisdiction or other legal restraint or prohibition preventing the consummation of the Merger, (iv) the receipt of certain tax opinions by the Company and Equity One, and (v) other customary conditions specified in the Merger Agreement. At a special meeting of Regency stockholders, held on Friday, February 24, 2017, the stockholders approved all matters subject to stockholder vote, including (i) the proposed Merger Agreement and the Merger, (ii) the proposal to amend the Restated Articles of Incorporation of Regency to increase the number of authorized shares of Regency common stock, and (iii) the proposal to increase the size of the Regency board of directors to 12 directors. At a separate special meeting of Equity One stockholders, also held on Friday, February 24, 2017, their stockholders approved all matters subject to stockholder vote, including (i) the proposed Merger Agreement and the Merger, and (ii) the proposal to approve the compensation that may be paid or become payable to the named executive officers in connection with the Merger. The Merger is expected to close effective March 1, 2017, at which time each share of Equity One common stock issued and outstanding will be converted into the right to receive 0.45 of a newly issued share of Regency common stock. The merger will be accounted for using the acquisition method of accounting. The purchase price will be computed using the closing price of Regency common stock on the closing date applied to the number of shares of common stock issued to consummate the merger. Under the acquisition method of accounting, the total purchase price is allocated to the acquired net tangible and identifiable intangible assets and liabilities assumed of Equity One based on their respective fair values, on the closing date. Since the purchase price will be based on the price of Regency's common stock on the effective date, the purchase price and resulting purchase price allocation is not yet known. Further information about preliminary estimated purchase price and unaudited pro forma financial statements of the combined company can be found in the Form S-4, as filed with the Securities and Exchange Commission on December 22, 2016 and subsequent amendments thereto. After the announcement of the merger agreement on November 14, 2016, a putative class action was filed on behalf of a purported stockholder in the Circuit Court for Duval County, Florida, under the following caption: Robert Garfield on Behalf of Himself and All Others Similarly Situated vs. Regency Centers Corporation, Martin E. Stein, Jr., John C. Schweitzer, Raymond L. Bank, Bryce Blair, C. Ronald Blankenship, J. Dix Druce, Jr., Mary Lou Fiala, David P. O'Connor, and Thomas G. Wattles, No. 16-2017-CA-000688-XXXX-MA, filed February 3, 2017. The class action alleges, among other matters, that the definitive joint proxy statement/prospectus filed by Regency and Equity One with the Securities and Exchange Commission (the “SEC”) on January 24, 2017 (the “Joint Proxy Statement/Prospectus”) omitted certain material information in connection with the Merger. The complainant seeks various remedies, including injunctive relief to prevent the consummation of the Merger unless certain allegedly material information is disclosed and seeking compensatory and rescissory damages in the event the Merger is consummated without such disclosures. On February 17, 2017, the defendants entered into a stipulation of settlement with respect to the class action, pursuant to which the parties have agreed, among other things, that Regency will make certain supplemental disclosures. The supplemental disclosures were made by Regency in the Current Report on Form 8-K filed by Regency with the SEC on February 17, 2017. The supplemental disclosures should be read in conjunction with the Joint Proxy Statement/Prospectus, which should be read in its entirety. Regency believes that the class action is without merit and that no supplemental disclosure is or was required to the Joint Proxy Statement/Prospectus under any applicable rule, statute, regulation or law. However, to, among other things, eliminate the burden, inconvenience, expense, risk and disruption of further litigation, Regency has determined to provide supplemental disclosures. Additional information regarding the stipulation of settlement may be found in the Current Report on Form 8-K as filed with the SEC on February 17, 2017.

16. Subsequent Events

Approval of Merger with Equity One, Inc.

On November 14, 2016, Regency entered into a Merger Agreement with Equity One, pursuant to which, subject to the satisfaction or waiver of certain conditions, Equity One will merge with and into the Company, with Regency being the surviving corporation (the “Merger”). The combined company will retain the Regency name and will continue to trade under the ticker symbol REG on the New York Stock Exchange ("NYSE"). The Company will expand its board of directors to 12 directors and will add three persons who served on Equity One's board of directors. The executive officers of Regency immediately prior to the effective date of the merger will continue to serve as executive officers of the combined company.

On the terms and subject to the conditions set forth in the Merger Agreement, which has been unanimously approved by the boards of directors of the Company and Equity One, at the effective time of the Merger, each share of the common stock, par value $0.01 per share, of Equity One issued and outstanding immediately prior to the effective time (other than shares of Equity One owned directly by Equity One or the Company and in each case not held on behalf of third parties) will be converted into the right to receive 0.45 of a newly issued share of the common stock of the Company.

The consummation of the Merger is subject to certain closing conditions, including (i) the approval of the Company’s and Equity One’s respective stockholders, (ii) the shares of Company Common Stock to be issued in the Merger will have been approved for listing on the New York Stock Exchange, subject to official notice of issuance, (iii) the absence of any temporary restraining order, preliminary or permanent injunction or other order issued by any court of competent jurisdiction or other legal restraint or prohibition preventing the consummation of the Merger, (iv) the receipt of certain tax opinions by the Company and Equity One, and (v) other customary conditions specified in the Merger Agreement.

At a special meeting of Regency stockholders, held on Friday, February 24, 2017, the stockholders approved all matters subject to stockholder vote, including

(i) the proposed Merger Agreement and the Merger,

(ii) the proposal to amend the Restated Articles of Incorporation of Regency to increase the number of authorized shares of Regency common stock, and

(iii) the proposal to increase the size of the Regency board of directors to 12 directors.

At a separate special meeting of Equity One stockholders, also held on Friday, February 24, 2017, their stockholders approved all matters subject to stockholder vote, including

(i) the proposed Merger Agreement and the Merger, and

(ii) the proposal to approve the compensation that may be paid or become payable to the named executive officers in connection with the Merger.

The Merger is expected to close effective March 1, 2017, at which time each share of Equity One common stock issued and outstanding will be converted into the right to receive 0.45 of a newly issued share of Regency common stock. The merger will be accounted for using the acquisition method of accounting. The purchase price will be computed using the closing price of Regency common stock on the closing date applied to the number of shares of common stock issued to consummate the merger. Under the acquisition method of accounting, the total purchase price is allocated to the acquired net tangible and identifiable intangible assets and liabilities assumed of Equity One based on their respective fair values, on the closing date. Since the purchase price will be based on the price of Regency's common stock on the effective date, the purchase price and resulting purchase price allocation is not yet known. Further information about preliminary estimated purchase price and unaudited pro forma financial statements of the combined company can be found in the Form S-4, as filed with the Securities and Exchange Commission on December 22, 2016 and subsequent amendments thereto.

After the announcement of the merger agreement on November 14, 2016, a putative class action was filed on behalf of a purported stockholder in the Circuit Court for Duval County, Florida, under the following caption: Robert Garfield on Behalf of Himself and All Others Similarly Situated vs. Regency Centers Corporation, Martin E. Stein, Jr., John C. Schweitzer, Raymond L. Bank, Bryce Blair, C. Ronald Blankenship, J. Dix Druce, Jr., Mary Lou Fiala, David P. O'Connor, and Thomas G. Wattles, No. 16-2017-CA-000688-XXXX-MA, filed February 3, 2017.

The class action alleges, among other matters, that the definitive joint proxy statement/prospectus filed by Regency and Equity One with the Securities and Exchange Commission (the “SEC”) on January 24, 2017 (the “Joint Proxy Statement/Prospectus”) omitted certain material information in connection with the Merger. The complainant seeks various remedies, including injunctive relief to prevent the consummation of the Merger unless certain allegedly material information is disclosed and seeking compensatory and rescissory damages in the event the Merger is consummated without such disclosures.

On February 17, 2017, the defendants entered into a stipulation of settlement with respect to the class action, pursuant to which the parties have agreed, among other things, that Regency will make certain supplemental disclosures. The supplemental disclosures were made by Regency in the Current Report on Form 8-K filed by Regency with the SEC on February 17, 2017. The supplemental disclosures should be read in conjunction with the Joint Proxy Statement/Prospectus, which should be read in its entirety.

Regency believes that the class action is without merit and that no supplemental disclosure is or was required to the Joint Proxy Statement/Prospectus under any applicable rule, statute, regulation or law. However, to, among other things, eliminate the burden, inconvenience, expense, risk and disruption of further litigation, Regency has determined to provide supplemental disclosures. Additional information regarding the stipulation of settlement may be found in the Current Report on Form 8-K as filed with the SEC on February 17, 2017.