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JOINT VENTURES AND PARTNERSHIPS - Commitments (Details) $ in Thousands | 1 Months Ended | 3 Months Ended |
--- | --- | --- | ---
Apr. 30, 2020 USD ($) | Jan. 31, 2020 USD ($) home | Jan. 31, 2019 USD ($) | Mar. 31, 2020 USD ($) | Mar. 31, 2019 USD ($) | Dec. 31, 2019 USD ($)
Joint Ventures |  |  |  |  |  |
Real estate owned |  |  |  | $ 12,817,998 |  | $ 12,602,101
Second installment of payable incurred in partial consideration for acquisition of ownership interest in joint venture |  |  |  | 33,560 |  |
Investment in unconsolidated entities |  |  |  | $ 585,091 |  | 585,490
Condition for Community considered to have stabilized occupancy |  |  |  | 90% |  |
Time to maintain percent occupancy to be considered a community |  |  |  | 3 months |  |
repayment of construction loan | $ 215,000 |  |  |  |  |
Investment in unconsolidated joint ventures |  |  |  | $ 16,139 | $ 21,389 |
Long-term Debt |  |  |  | 4,885,138 |  | 4,707,524
Deferred fees from the sale of properties |  |  |  | 9,000 |  | $ 9,000
Joint venture management and other fees |  |  |  |  | 2,800 |
Joint venture management and other fees |  |  |  | $ 1,388 | $ 2,751 |
Type of revenue |  |  |  | udr:ManagementAndOtherFeesMember | udr:ManagementAndOtherFeesMember |
Preferred Equity Investment Hillsboro Oregon |  |  |  |  |  |
Joint Ventures |  |  |  |  |  |
UDR's Ownership Interest |  | 100.00% |  |  |  | 49.00%
repayment of construction loan |  |  | $ 35,600 |  |  |
Number of apartment homes acquired | home |  | 276 |  |  |  |
Payment to acquire real estate |  | $ 21,600 |  |  |  |
Gain on consolidation |  | $ 0 |  |  |  |
Number of apartment homes | home |  | 276 |  |  |  |
13th and Market Properties LLC |  |  |  |  |  |
Joint Ventures |  |  |  |  |  |
Investment in unconsolidated entities |  |  |  | $ 3,300 |  |

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