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REPORTABLE SEGMENTS (Details) $ in Thousands | 3 Months Ended | 6 Months Ended |  |
--- | --- | --- | --- | ---
Jun. 30, 2021 USD ($) home | Jun. 30, 2020 USD ($) home | Jun. 30, 2021 USD ($) segment home | Jun. 30, 2020 USD ($) home | Dec. 31, 2020 USD ($) | Dec. 31, 2019 USD ($)
Segments |  |  |  |  |  |
Same store communities | home | 45,974 | 45,974 | 45,404 | 45,404 |  |
Reportable Segments |  |  |  |  |  |
Number of reportable segments | segment |  |  | 2 |  |  |
Condition for Community considered to have stabilized occupancy |  |  | 90% |  |  |
Time to maintain percent occupancy to be considered a community |  |  | 3 months |  |  |
Practical expedient, single lease component |  |  | true |  |  |
Summary of rental income and NOI for UDRs reportable segments and reconciliation of NOI to loss from continuing operations |  |  |  |  |  |
Rental income | $ 309,116 | $ 305,982 | $ 608,942 | $ 626,075 |  |
Reconciling items: |  |  |  |  |  |
Joint venture management and other fees | $ 2,232 | $ 1,274 | $ 3,847 | $ 2,662 |  |
Type of revenue | udr:ManagementAndOtherFeesMember | udr:ManagementAndOtherFeesMember | udr:ManagementAndOtherFeesMember | udr:ManagementAndOtherFeesMember |  |
Property management | $ (9,273) | $ (8,797) | $ (18,268) | $ (18,000) |  |
Other operating expenses | (4,373) | (6,100) | (8,808) | (11,066) |  |
Real estate depreciation and amortization | (146,169) | (155,056) | (290,257) | (310,532) |  |
General and administrative | (15,127) | (10,971) | (27,863) | (25,949) |  |
Casualty-related (charges)/recoveries, net | 2,463 | (102) | (3,114) | (1,353) |  |
Other depreciation and amortization | (2,602) | (2,027) | (5,203) | (4,052) |  |
Gain/(loss) on sale of real estate owned |  | 61,303 | 50,829 | 61,303 |  |
Income/(loss) from unconsolidated entities | 9,751 | 8,021 | 14,673 | 11,388 |  |
Interest expense | (35,404) | (38,597) | (113,560) | (77,914) |  |
Interest income and other income/(expense), net | 2,536 | 2,421 | 4,593 | 5,121 |  |
Tax (provision)/benefit, net | (135) | (1,526) | (754) | (1,690) |  |
Net (income)/loss attributable to redeemable noncontrolling interests in the Operating Partnership and DownREIT Partnership | (807) | (4,291) | (961) | (4,604) |  |
Net (income)/loss attributable to noncontrolling interests | (8) | (34) | (24) | (40) |  |
Net income/(loss) attributable to UDR, Inc. | 11,720 | 57,771 | 14,824 | 62,992 |  |
Reportable apartment home segment assets: |  |  |  |  |  |
Total segment assets | 13,612,524 |  | 13,612,524 |  | $ 13,071,472 |
Accumulated depreciation | (4,871,506) |  | (4,871,506) |  | (4,605,366) |
Total real estate owned, net of accumulated depreciation | 8,741,018 |  | 8,741,018 |  | 8,466,106 |
Reconciling items: |  |  |  |  |  |
Cash and cash equivalents | 3,370 | 833 | 3,370 | 833 | 1,409 | $ 8,106
Restricted cash | 32,700 | 22,043 | 32,700 | 22,043 | 22,762 | $ 25,185
Notes receivable, net | 139,047 |  | 139,047 |  | 157,992 |
Investment in and advances to unconsolidated joint ventures, net | 619,172 |  | 619,172 |  | 600,233 |
Operating lease right-of-use assets | 199,206 |  | 199,206 |  | 200,913 |
Other assets | 184,758 |  | 184,758 |  | 188,118 |
Total consolidated assets | 9,919,271 |  | 9,919,271 |  | 9,637,533 |
Same Store Communities West Region |  |  |  |  |  |
Summary of rental income and NOI for UDRs reportable segments and reconciliation of NOI to loss from continuing operations |  |  |  |  |  |
Lease revenue | 103,059 | 107,901 | 201,810 | 217,747 |  |
Other revenue | 2,653 | 2,978 | 5,329 | 5,879 |  |
Rental income | 105,712 | 110,879 | 207,139 | 223,626 |  |
Reportable apartment home segment NOI | 77,120 | 83,112 | 150,931 | 168,229 |  |
Reportable apartment home segment assets: |  |  |  |  |  |
Total segment assets | 4,334,493 |  | 4,334,493 |  | 4,316,098 |
Same Store Communities Mid-Atlantic Region |  |  |  |  |  |
Summary of rental income and NOI for UDRs reportable segments and reconciliation of NOI to loss from continuing operations |  |  |  |  |  |
Lease revenue | 61,390 | 61,232 | 121,307 | 123,769 |  |
Other revenue | 1,972 | 1,540 | 3,674 | 3,240 |  |
Rental income | 63,362 | 62,772 | 124,981 | 127,009 |  |
Reportable apartment home segment NOI | 43,733 | 43,929 | 86,135 | 89,245 |  |
Reportable apartment home segment assets: |  |  |  |  |  |
Total segment assets | 2,710,788 |  | 2,710,788 |  | 2,698,049 |
Same Store Communities Northeast Region |  |  |  |  |  |
Summary of rental income and NOI for UDRs reportable segments and reconciliation of NOI to loss from continuing operations |  |  |  |  |  |
Lease revenue | 51,864 | 53,143 | 103,916 | 110,639 |  |
Other revenue | 1,048 | 1,371 | 2,093 | 2,434 |  |
Rental income | 52,912 | 54,514 | 106,009 | 113,073 |  |
Reportable apartment home segment NOI | 34,227 | 37,186 | 67,570 | 77,509 |  |
Reportable apartment home segment assets: |  |  |  |  |  |
Total segment assets | 2,911,914 |  | 2,911,914 |  | 2,900,017 |
Same Store Communities Southeast Region |  |  |  |  |  |
Summary of rental income and NOI for UDRs reportable segments and reconciliation of NOI to loss from continuing operations |  |  |  |  |  |
Lease revenue | 37,255 | 35,368 | 70,142 | 67,561 |  |
Other revenue | 1,889 | 1,328 | 3,292 | 2,779 |  |
Rental income | 39,144 | 36,696 | 73,434 | 70,340 |  |
Reportable apartment home segment NOI | 26,297 | 24,265 | 49,625 | 47,986 |  |
Reportable apartment home segment assets: |  |  |  |  |  |
Total segment assets | 1,069,988 |  | 1,069,988 |  | 1,059,771 |
Same Store Communities Southwest Region |  |  |  |  |  |
Summary of rental income and NOI for UDRs reportable segments and reconciliation of NOI to loss from continuing operations |  |  |  |  |  |
Lease revenue | 23,765 | 23,379 | 46,976 | 47,194 |  |
Other revenue | 1,053 | 741 | 1,930 | 1,563 |  |
Rental income | 24,818 | 24,120 | 48,906 | 48,757 |  |
Reportable apartment home segment NOI | 15,312 | 14,537 | 30,147 | 29,915 |  |
Reportable apartment home segment assets: |  |  |  |  |  |
Total segment assets | 896,420 |  | 896,420 |  | 897,505 |
Non-Mature communities/Other |  |  |  |  |  |
Summary of rental income and NOI for UDRs reportable segments and reconciliation of NOI to loss from continuing operations |  |  |  |  |  |
Lease revenue | 22,477 | 16,559 | 47,105 | 42,293 |  |
Other revenue | 691 | 442 | 1,368 | 977 |  |
Rental income | 23,168 | 17,001 | 48,473 | 43,270 |  |
Reportable apartment home segment NOI | 11,947 | 9,224 | 25,286 | 24,834 |  |
Reportable apartment home segment assets: |  |  |  |  |  |
Total segment assets | 1,688,921 |  | 1,688,921 |  | $ 1,200,032 |
Total Communities |  |  |  |  |  |
Summary of rental income and NOI for UDRs reportable segments and reconciliation of NOI to loss from continuing operations |  |  |  |  |  |
Lease revenue | 299,810 | 297,582 | 591,256 | 609,203 |  |
Other revenue | 9,306 | 8,400 | 17,686 | 16,872 |  |
Rental income | 309,116 | 305,982 | 608,942 | 626,075 |  |
Reportable apartment home segment NOI | $ 208,636 | $ 212,253 | $ 409,694 | $ 437,718 |  |
Taxable REIT Subsidiaries |  |  |  |  |  |
Reportable Segments |  |  |  |  |  |
Management fee (as a percent) |  |  | 3.00% |  |  |

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