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Investments in Real Estate Partnerships - Schedule of Investments in Real Estate Partnerships (Details) $ in Thousands | 12 Months Ended
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Dec. 31, 2022 USD ($) Property | Dec. 31, 2021 USD ($) Property | Dec. 31, 2020 USD ($)
Schedule of Equity Method Investments [Line Items] |  |  |  |  |
Number of Properties | Property |  | 96 |  | 103 |
Total Investments |  | $ 350,377 |  | $ 372,591 |
The Company's Share of Net Income of the Partnership |  | 59,824 |  | 47,086 | $ 34,169
Total Assets [Member] |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |
Total assets of the Partnership |  | 2,608,005 |  | 2,755,444 |
Net Income [Member] |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |
Net Income of the Partnership |  | $ 173,166 |  | $ 199,276 |
GRI - Regency, LLC [Member] |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |
Ownership Percentage |  | 40.00% |  | 40.00% |
Number of Properties | Property |  | 66 |  | 67 |
Total Investments |  | $ 155,302 |  | $ 153,125 |
The Company's Share of Net Income of the Partnership |  | 35,819 |  | 34,655 |
GRI - Regency, LLC [Member] | Total Assets [Member] |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |
Total assets of the Partnership |  | 1,501,876 |  | 1,537,411 |
GRI - Regency, LLC [Member] | Net Income [Member] |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |
Net Income of the Partnership |  | $ 83,989 |  | $ 78,112 |
New York Common Retirement Fund (NYC) [Member] |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |
Ownership Percentage |  | 30.00% | [1] | 30.00% |
Number of Properties | Property |  |  |  | 2 |
Total Investments |  | $ 674 | [1] | $ 11,688 |
The Company's Share of Net Income of the Partnership |  | 9,173 | [1] | 315 |
New York Common Retirement Fund (NYC) [Member] | Total Assets [Member] |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |
Total assets of the Partnership |  | 2,468 | [1] | 82,446 |
New York Common Retirement Fund (NYC) [Member] | Net Income [Member] |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |
Net Income of the Partnership |  | $ 35,673 | [1] | $ 6,939 |
Columbia Regency Retail Partners, LLC (Columbia I) [Member] |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |
Ownership Percentage |  | 20.00% |  | 20.00% |
Number of Properties | Property |  | 7 |  | 7 |
Total Investments |  | $ 7,423 |  | $ 7,360 |
The Company's Share of Net Income of the Partnership |  | 1,817 |  | 1,976 |
Columbia Regency Retail Partners, LLC (Columbia I) [Member] | Total Assets [Member] |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |
Total assets of the Partnership |  | 138,493 |  | 135,537 |
Columbia Regency Retail Partners, LLC (Columbia I) [Member] | Net Income [Member] |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |
Net Income of the Partnership |  | $ 9,392 |  | $ 10,256 |
Columbia Regency Partners II, LLC (Columbia II) [Member] |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |
Ownership Percentage |  | 20.00% |  | 20.00% |
Number of Properties | Property |  | 13 |  | 12 |
Total Investments |  | $ 41,757 |  | $ 35,251 |
The Company's Share of Net Income of the Partnership |  | 1,735 |  | 10,987 |
Columbia Regency Partners II, LLC (Columbia II) [Member] | Total Assets [Member] |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |
Total assets of the Partnership |  | 405,927 |  | 352,469 |
Columbia Regency Partners II, LLC (Columbia II) [Member] | Net Income [Member] |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |
Net Income of the Partnership |  | $ 8,674 |  | $ 55,059 |
Columbia Village District, LLC [Member] |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |
Ownership Percentage |  | 30.00% |  | 30.00% |
Number of Properties | Property |  | 1 |  | 1 |
Total Investments |  | $ 5,836 |  | $ 5,554 |
The Company's Share of Net Income of the Partnership |  | 1,669 |  | 1,522 |
Columbia Village District, LLC [Member] | Total Assets [Member] |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |
Total assets of the Partnership |  | 96,002 |  | 94,536 |
Columbia Village District, LLC [Member] | Net Income [Member] |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |
Net Income of the Partnership |  | $ 5,597 |  | $ 5,131 |
RegCal, LLC (RegCal) [Member] |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |
Ownership Percentage |  | 25.00% | [2] | 25.00% |
Number of Properties | Property |  | 1 | [2] | 6 |
Total Investments |  | $ 5,789 | [2] | $ 24,995 |
The Company's Share of Net Income of the Partnership |  | 4,499 | [2] | 2,058 |
RegCal, LLC (RegCal) [Member] | Total Assets [Member] |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |
Total assets of the Partnership |  | 24,326 | [2] | 103,587 |
RegCal, LLC (RegCal) [Member] | Net Income [Member] |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |
Net Income of the Partnership |  | $ 18,258 | [2] | $ 8,448 |
US Regency Retail I, LLC (USAA) [Member] |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |
Ownership Percentage | [3] |  |  | 20.01% |
The Company's Share of Net Income of the Partnership | [3] |  |  | $ 631 |
US Regency Retail I, LLC (USAA) [Member] | Net Income [Member] |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |
Net Income of the Partnership | [3] |  |  | $ 3,155 |
Ballard Bocks [Member] |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |
Ownership Percentage |  | 49.90% |  | 49.90% |
Number of Properties | Property |  | 2 |  | 2 |
Total Investments |  | $ 62,624 |  | $ 63,783 |
The Company's Share of Net Income of the Partnership |  | 1,300 |  | 1,742 |
Ballard Bocks [Member] | Total Assets [Member] |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |
Total assets of the Partnership |  | 126,482 |  | 128,959 |
Ballard Bocks [Member] | Net Income [Member] |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |
Net Income of the Partnership |  | $ 2,925 |  | $ 3,811 |
Town & Country Center [Member] |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |
Ownership Percentage |  | 35.00% |  | 35.00% |
Number of Properties | Property |  | 1 |  | 1 |
Total Investments |  | $ 40,409 |  | $ 39,021 |
The Company's Share of Net Income of the Partnership |  | 819 |  | (733) |
Town & Country Center [Member] | Total Assets [Member] |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |
Total assets of the Partnership |  | 206,931 |  | 207,339 |
Town & Country Center [Member] | Net Income [Member] |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |
Net Income of the Partnership |  | $ 2,404 |  | $ 2,014 |
Others [Member] |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |
Ownership Percentage |  | 50.00% |  | 50.00% |
Number of Properties | Property |  | 5 |  | 5 |
Total Investments |  | $ 30,563 |  | $ 31,814 |
The Company's Share of Net Income of the Partnership |  | 2,993 |  | (6,067) |
Others [Member] | Total Assets [Member] |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |
Total assets of the Partnership |  | 105,500 |  | 113,160 |
Others [Member] | Net Income [Member] |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |
Net Income of the Partnership |  | $ 6,254 |  | $ 26,351 |
[1] | On May 25, 2022, the NYC partnership sold the remaining two properties and distributed sales proceeds to the members. Dissolution will follow final distributions, which are expected in 2023.
[2] | During April 2022, we acquired our partner's 75% share in four properties held in the RegCal, LLC, partnership for a total purchase price of $88.5 million. Upon acquisition, these four properties were consolidated into Regency's financial statements. A single operating property remains within RegCal, LLC, at December 31, 2022.
[3] | On August 1, 2021, the Company acquired the partner's 80% interest in the seven properties held in the USAA partnership and therefore all earnings of this property are included in consolidated results from the date of acquisition and excluded from partnership earnings. See note 2.

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