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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, 2023 USD ($) Property | Dec. 31, 2022 USD ($) Property | Dec. 31, 2021 USD ($)
Schedule of Equity Method Investments [Line Items] |  |  |  |  |
Number of Properties | Property |  | 101 |  | 96 |
Total Investments |  | $ 370,605 |  | $ 350,377 |
Total assets of the Partnership |  |  |  | 2,608,005 |
The Company's Share of Net Income of the Partnership |  | 50,541 |  | 59,824 | $ 47,086
Net Income of the Partnership |  |  |  | $ 173,166 |
Total Assets [Member] |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |
Total assets of the Partnership |  | 2,689,993 |  |  |
Net Income [Member] |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |
Net Income of the Partnership |  | $ 135,138 |  |  |
GRI - Regency, LLC [Member] |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |
Ownership Percentage |  | 40.00% |  | 40.00% |
Number of Properties | Property |  | 66 |  | 66 |
Total Investments |  | $ 144,371 |  | $ 155,302 |
The Company's Share of Net Income of the Partnership |  | 35,901 |  | 35,819 |
GRI - Regency, LLC [Member] | Total Assets [Member] |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |
Total assets of the Partnership |  | 1,475,611 |  | 1,501,876 |
GRI - Regency, LLC [Member] | Net Income [Member] |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |
Net Income of the Partnership |  | $ 84,224 |  | $ 83,989 |
New York Common Retirement Fund (NYC) [Member] |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |
Ownership Percentage | [1] |  |  | 30.00% |
Total Investments | [1] |  |  | $ 674 |
The Company's Share of Net Income of the Partnership | [1] |  |  | 9,173 |
New York Common Retirement Fund (NYC) [Member] | Total Assets [Member] |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |
Total assets of the Partnership | [1] |  |  | 2,468 |
New York Common Retirement Fund (NYC) [Member] | Net Income [Member] |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |
Net Income of the Partnership | [1] |  |  | $ 35,673 |
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 |  | $ 7,045 |  | $ 7,423 |
The Company's Share of Net Income of the Partnership |  | 1,630 |  | 1,817 |
Columbia Regency Retail Partners, LLC (Columbia I) [Member] | Total Assets [Member] |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |
Total assets of the Partnership |  | 139,224 |  | 138,493 |
Columbia Regency Retail Partners, LLC (Columbia I) [Member] | Net Income [Member] |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |
Net Income of the Partnership |  | $ 8,559 |  | $ 9,392 |
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 |  | 14 |  | 13 |
Total Investments |  | $ 42,994 |  | $ 41,757 |
The Company's Share of Net Income of the Partnership |  | 1,743 |  | 1,735 |
Columbia Regency Partners II, LLC (Columbia II) [Member] | Total Assets [Member] |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |
Total assets of the Partnership |  | 424,672 |  | 405,927 |
Columbia Regency Partners II, LLC (Columbia II) [Member] | Net Income [Member] |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |
Net Income of the Partnership |  | $ 8,769 |  | $ 8,674 |
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 |  | $ 6,123 |  | $ 5,836 |
The Company's Share of Net Income of the Partnership |  | 2,199 |  | 1,669 |
Columbia Village District, LLC [Member] | Total Assets [Member] |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |
Total assets of the Partnership |  | 97,522 |  | 96,002 |
Columbia Village District, LLC [Member] | Net Income [Member] |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |
Net Income of the Partnership |  | $ 7,383 |  | $ 5,597 |
RegCal, LLC (RegCal) [Member] |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |
Ownership Percentage | [2] |  |  | 25.00% |
Number of Properties | Property | [2] |  |  | 1 |
Total Investments | [2] |  |  | $ 5,789 |
The Company's Share of Net Income of the Partnership | [2] |  |  | 4,499 |
RegCal, LLC (RegCal) [Member] | Total Assets [Member] |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |
Total assets of the Partnership | [2] |  |  | 24,326 |
RegCal, LLC (RegCal) [Member] | Net Income [Member] |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |
Net Income of the Partnership | [2] |  |  | $ 18,258 |
Ballard Bocks [Member] |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |
Ownership Percentage |  | 49.90% |  | 49.90% |
Number of Properties | Property |  | 2 |  | 2 |
Total Investments |  | $ 62,140 |  | $ 62,624 |
The Company's Share of Net Income of the Partnership |  | 1,486 |  | 1,300 |
Ballard Bocks [Member] | Total Assets [Member] |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |
Total assets of the Partnership |  | 120,379 |  | 126,482 |
Ballard Bocks [Member] | Net Income [Member] |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |
Net Income of the Partnership |  | $ 3,297 |  | $ 2,925 |
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 |  | $ 42,074 |  | $ 40,409 |
The Company's Share of Net Income of the Partnership |  | 1,075 |  | (819) |
Town & Country Center [Member] | Total Assets [Member] |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |
Total assets of the Partnership |  | 224,579 |  | 206,931 |
Town & Country Center [Member] | Net Income [Member] |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |
Net Income of the Partnership |  | $ 3,136 |  | $ 2,404 |
Others [Member] |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |
Ownership Percentage |  |  |  | 50.00% |
Number of Properties | Property |  | 10 | [3] | 5 |
Total Investments |  | $ 65,858 | [3] | $ 30,563 |
The Company's Share of Net Income of the Partnership |  | 6,507 | [3] | (2,993) |
Others [Member] | Total Assets [Member] |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |
Total assets of the Partnership |  | 208,006 | [3] | 105,500 |
Others [Member] | Net Income [Member] |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |
Net Income of the Partnership |  | $ 19,770 | [3] | $ 6,254 |
Others [Member] | Minimum [Member] |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |
Ownership Percentage | [3] | 11.80% |  |  |
Others [Member] | Maximum [Member] |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |
Ownership Percentage | [3] | 66.67% |  |  |
[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 2024.
[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.
[3] | New York Common Retirement Fund (NYC) and RegCal, LLC (RegCal) no longer have any operating properties and any residual balances have been included in Others as of December 31, 2023. The residual balances are primarily made up of the Company’s share of remaining working capital.

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