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Investments in and Advances to Unconsolidated Affiliates - Fund Investments - Additional Information (Details) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended |
--- | --- | --- | ---
Jun. 30, 2024 | Jun. 30, 2023 | Jun. 30, 2024 | Jun. 30, 2023 | Dec. 31, 2023
Schedule of Equity Method Investments [Line Items] |  |  |  |  |  |
Long-term debt, gross | [1],[2] | $ 1,707,658 |  | $ 1,707,658 |  | $ 1,881,087
Proceeds from the disposition of properties and other investments, net |  |  |  | 58,670 | $ 0 |
Proceeds from dividends received |  | $ 200 | $ 200 | $ 300 | $ 28,700 |
Shops at Grand - Queens, NY |  |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |  |
Percentage of voting interests acquired |  | 5.00% |  | 5.00% |  |
Investment Owned, Fair Value |  | $ 2,400 |  | $ 2,400 |  |
Fund IV |  |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |  |
Venture Capital Gain (Loss), Net |  |  |  | 4,100 |  |
Share of the gain based on ownership |  | 1,000 |  | 1,000 |  |
Gotham Plaza |  |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |  |
Long-term debt, gross |  | 17,100 |  | $ 17,100 |  |
Maturity date |  |  |  | Sep. 02, 2024 |  |
Paramus Plaza |  |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |  |
Proceeds from the disposition of properties and other investments, net |  |  |  | $ 36,800 |  |
Repayment related to mortgage |  | $ 27,900 |  | $ 27,900 |  |
[1] | Includes $151.2 mi llion and $151.4 million, respectively, of variable-rate debt that is subject to interest cap agreements as of the periods presented. The effective fixed rates ranged fro m 4.50% to 6.00%.
[2] | Includes $1,188.3 million and $1,249.8 million, respectively, of variable-rate debt that has been fixed with interest rate swap agreements as of the periods presented. The effective fixed rates ranged from 1.14% to 4.69%.

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