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Investments in Real Estate Partnerships - Scheduled Principal Repayments on Notes Payable (Details) - USD ($) $ in Thousands | Dec. 31, 2022 | Dec. 31, 2021
--- | --- | ---
Schedule of Equity Method Investments [Line Items] |  |
2023 | $ 69,078 |
2024 | 345,607 |
2025 | 297,982 |
2026 | 316,287 |
2027 | 666,703 |
Beyond 5 Years | 2,053,192 |
Unamortized debt premium/(discount) and issuance costs | (22,095) |
Total | 3,726,754 | $ 3,718,944
Unsecured Debt [Member] |  |
Schedule of Equity Method Investments [Line Items] |  |
Total | 3,248,373 | $ 3,243,991
Unconsolidated Investments in Partnership [Member] |  |
Schedule of Equity Method Investments [Line Items] |  |
2023 | 128,302 |
2024 | 35,895 |
2025 | 143,116 |
2026 | 246,490 |
2027 | 36,602 |
Beyond 5 Years | 818,844 |
Unamortized debt premium/(discount) and issuance costs | (10,952) |
Total | 1,398,297 |
Unconsolidated Investments in Partnership [Member] | Mortgages [Member] | Scheduled Principal Payments [Member] |  |
Schedule of Equity Method Investments [Line Items] |  |
2023 | 3,194 |
2024 | 2,205 |
2025 | 3,433 |
2026 | 3,807 |
2027 | 3,802 |
Beyond 5 Years | 9,194 |
Unamortized debt premium/(discount) and issuance costs | 0 |
Total | 25,635 |
Unconsolidated Investments in Partnership [Member] | Mortgages [Member] | Mortgage Loan Maturities [Member] |  |
Schedule of Equity Method Investments [Line Items] |  |
2023 | 125,108 |
2024 | 33,690 |
2025 | 139,683 |
2026 | 218,883 |
2027 | 32,800 |
Beyond 5 Years | 809,650 |
Unamortized debt premium/(discount) and issuance costs | (10,952) |
Total | 1,348,862 |
Unconsolidated Investments in Partnership [Member] | Unsecured Debt [Member] | Unsecured Maturities [Member] |  |
Schedule of Equity Method Investments [Line Items] |  |
2023 | 0 |
2024 | 0 |
2025 | 0 |
2026 | 23,800 |
2027 | 0 |
Beyond 5 Years | 0 |
Unamortized debt premium/(discount) and issuance costs | 0 |
Total | 23,800 |
Unconsolidated Investments in Partnership, Pro-rata Share [Member] [Member] |  |
Schedule of Equity Method Investments [Line Items] |  |
2023 | 51,187 |
2024 | 14,298 |
2025 | 43,908 |
2026 | 79,741 |
2027 | 12,420 |
Beyond 5 Years | 300,506 |
Unamortized debt premium/(discount) and issuance costs | (3,800) |
Total | $ 498,260 |

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