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JOINT VENTURES AND PARTNERSHIPS - Commitments (Details) $ in Thousands | 1 Months Ended | 3 Months Ended | 9 Months Ended |
--- | --- | --- | --- | ---
Jan. 31, 2022 USD ($) home | Sep. 30, 2022 USD ($) home | Sep. 30, 2021 USD ($) | Sep. 30, 2022 USD ($) home | Sep. 30, 2021 USD ($) | Dec. 31, 2021 USD ($)
Joint Ventures |  |  |  |  |  |
Investment in unconsolidated entities |  | $ 754,123 |  | $ 754,123 |  | $ 696,376
Gain/(loss) on sale of real estate owned |  | 0 | $ 0 | 0 | $ 50,829 |
Deferred fees from the sale of properties |  | 8,200 |  | 8,200 |  | 8,700
Joint venture management and other fees |  | $ 1,274 | $ 1,071 | $ 3,778 | $ 4,918 |
Type of revenue |  | udr:ManagementAndOtherFeesMember | udr:ManagementAndOtherFeesMember | udr:ManagementAndOtherFeesMember | udr:ManagementAndOtherFeesMember |
Limited Partner |  |  |  |  |  |
Joint Ventures |  |  |  |  |  |
Investment in unconsolidated entities | $ 7,500 |  |  |  |  |
UDR Commitment | $ 25,000 |  |  |  |  |
Operating Community |  |  |  |  |  |
Joint Ventures |  |  |  |  |  |
Investment in unconsolidated entities |  | $ 253,342 |  | $ 253,342 |  | 270,915
Unconsolidated Joint Venture UDR Met Life I | Operating Community |  |  |  |  |  |
Joint Ventures |  |  |  |  |  |
Investment in unconsolidated entities |  | $ 21,532 |  | $ 21,532 |  | 23,880
Number of apartment homes | home |  | 150 |  | 150 |  |
Unconsolidated Joint Venture UDR MetLife II | Operating Community |  |  |  |  |  |
Joint Ventures |  |  |  |  |  |
Investment in unconsolidated entities |  | $ 176,191 |  | $ 176,191 |  | 181,023
Number of apartment homes | home |  | 1,250 |  | 1,250 |  |
Preferred Equity Investment Herndon, Virginia | Development Community |  |  |  |  |  |
Joint Ventures |  |  |  |  |  |
Investment in unconsolidated entities |  | $ 33,299 |  | $ 33,299 |  | 22,828
UDR Commitment |  | $ 30,208 |  | $ 30,208 |  |
Preferred return (as a percent) |  | 9.00% |  | 9.00% |  |
Preferred Equity Investment Allen, Texas | Development Community |  |  |  |  |  |
Joint Ventures |  |  |  |  |  |
Investment in unconsolidated entities |  | $ 22,009 |  | $ 22,009 |  | 14,134
UDR Commitment |  | $ 19,843 |  | $ 19,843 |  |
Preferred return (as a percent) |  | 9.00% |  | 9.00% |  |
Preferred Equity Investment 1200 Broadway Nashville TN | Development Community |  |  |  |  |  |
Joint Ventures |  |  |  |  |  |
Investment in unconsolidated entities |  |  |  |  |  | 61,326
Real estate technology investments RETV I | Development Community |  |  |  |  |  |
Joint Ventures |  |  |  |  |  |
Investment in unconsolidated entities |  | $ 25,639 |  | $ 25,639 |  | 71,464
UDR Commitment |  | 18,000 |  | 18,000 |  |
Accounts Payable, Accrued Expenses and Other Liabilities | 13th and Market Properties LLC |  |  |  |  |  |
Joint Ventures |  |  |  |  |  |
Investment in unconsolidated entities |  | $ (7,000) |  | $ (7,000) |  | $ (6,100)
Preferred Equity Investment Home Operating Community, Nashville Tennessee | Operating Community |  |  |  |  |  |
Joint Ventures |  |  |  |  |  |
Number of communities sold | home | 313 |  |  |  |  |
Equity method investment amount sold | $ 294,000 |  |  |  |  |
Variable participation on the sale of community | $ 10,600 |  |  |  |  |

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