XML 55 R44.htm IDEA: XBRL DOCUMENT
v3.25.2

REAL ESTATE OWNED - Additional Information (Details) $ in Thousands | 1 Months Ended | 3 Months Ended | 6 Months Ended |
--- | --- | --- | --- | ---
May 31, 2025 USD ($) loan home | Jan. 31, 2025 USD ($) home | Jun. 30, 2025 USD ($) community state home | Jun. 30, 2024 USD ($) | Jun. 30, 2025 USD ($) community state home | Jun. 30, 2024 USD ($) | Dec. 31, 2024 loan
Real Estate Owned Disclosure |  |  |  |  |  |  |
Number of real estate properties | community |  |  | 168 |  | 168 |  |
Number of states in which there are owned and consolidated communities | state |  |  | 12 |  | 12 |  |
Number of apartment homes owned and consolidated | home |  |  | 55,808 |  | 55,808 |  |
Gain/(loss) on sale of real estate owned |  |  |  |  | $ 47,939 | $ 16,867 |
Development Costs Excluding Direct Costs and Capitalized Interest |  |  | $ 1,400 | $ 4,400 | 4,000 | 8,600 |
Interest capitalized during period |  |  | $ 2,100 | $ 2,400 | $ 4,100 | $ 5,300 |
188 Home Operating Community located in Brooklyn |  |  |  |  |  |  |
Real Estate Owned Disclosure |  |  |  |  |  |  |
Number of apartment homes sold | home |  | 188 |  |  |  |  |
Proceeds from sale of real estate |  | $ 127,500 |  |  |  |  |
Gain/(loss) on sale of real estate owned |  | $ 23,500 |  |  |  |  |
185 Home Operating Community located Englewood |  |  |  |  |  |  |
Real Estate Owned Disclosure |  |  |  |  |  |  |
Number of apartment homes sold | home |  | 185 |  |  |  |  |
Proceeds from sale of real estate |  | $ 84,000 |  |  |  |  |
Gain/(loss) on sale of real estate owned |  | $ 24,400 |  |  |  |  |
Notes Due October 2025 and May 2026 |  |  |  |  |  |  |
Real Estate Owned Disclosure |  |  |  |  |  |  |
Number of loans | loan | 3 |  |  |  |  |  | 3
Home operating community in Philadelphia, Pennsylvania |  |  |  |  |  |  |
Real Estate Owned Disclosure |  |  |  |  |  |  |
Number of apartment homes acquired | home | 478 |  |  |  |  |  |
Increase from acquisition | $ 166,000 |  |  |  |  |  |
Increased in real estate assets due to acquisition | 10,100 |  |  |  |  |  |
Real estate in-place lease intangibles | 6,400 |  |  |  |  |  |
Gain on consolidation | 300 |  |  |  |  |  |
Home operating community in Philadelphia, Pennsylvania | Operating Community |  |  |  |  |  |  |
Real Estate Owned Disclosure |  |  |  |  |  |  |
Developer paid for unpaid interest and reimbursement costs | $ 6,700 |  |  |  |  |  |

X
- Definition Apartment homes sold. + References No definition available. + Details
Name: | udr_ApartmentHomesSold
Namespace Prefix: | udr_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | duration

X
- Definition Development Costs Excluding Direct Costs and Capitalized Interest + References No definition available. + Details
Name: | udr_DevelopmentCostsExcludingDirectCostsAndCapitalizedInterest
Namespace Prefix: | udr_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Number of apartment homes acquired. + References No definition available. + Details
Name: | udr_NumberOfApartmentHomesAcquired
Namespace Prefix: | udr_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | duration

X
- Definition Number Of Apartment Homes Owned And Consolidated By Company + References No definition available. + Details
Name: | udr_NumberOfApartmentHomesOwnedAndConsolidatedByCompany
Namespace Prefix: | udr_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | instant

X
- Definition The number of loans that the company entered with the joint venture. + References No definition available. + Details
Name: | udr_NumberOfLoansWithJointVenture
Namespace Prefix: | udr_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | instant

X
- Definition The cash inflow associated with collections from a borrowing supported by a written promise to pay an obligation in relation to real estate property acquired. + References No definition available. + Details
Name: | udr_ProceedsFromCollectionOfNotesReceivableRealEstatePropertyAcquired
Namespace Prefix: | udr_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Amount of real estate in place lease intangibles recorded from real estate property acquired. + References No definition available. + Details
Name: | udr_RealEstateInPlaceLeaseIntangibles
Namespace Prefix: | udr_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Amount of increase in real estate intangibles due to acquisition of real estate property. + References No definition available. + Details
Name: | udr_RealEstateIntangiblesIncreaseFromAcquisition
Namespace Prefix: | udr_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Represents the amount of gain (loss) on consolidation. + References No definition available. + Details
Name: | udr_RealEstateOwnedGainLossOnConsolidation
Namespace Prefix: | udr_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Amount of increase in real estate owned from acquisition. + References No definition available. + Details
Name: | udr_RealEstateOwnedIncreaseFromAcquisition
Namespace Prefix: | udr_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Real estate owned. + References No definition available. + Details
Name: | udr_RealEstateOwnedTextualAbstract
Namespace Prefix: | udr_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition The net gain (loss) resulting from sales and other disposals of real estate owned for investment purposes. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 220 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03(9)(a)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147483621/220-10-S99-2 Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 220 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03(7)(c)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147483621/220-10-S99-2 Reference 3: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 946 -SubTopic 220 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.6-07(7)(a)(8)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147479134/946-220-S99-1 Reference 4: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 230 -SubTopic 10 -Name Accounting Standards Codification -Section 45 -Paragraph 28 -Subparagraph (b) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482740/230-10-45-28 Reference 5: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 942 -SubTopic 220 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-04(14)(d)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147478524/942-220-S99-1 Reference 6: http://www.xbrl.org/2003/role/disclosureRef -Name Accounting Standards Codification -Section 45 -Paragraph 3 -SubTopic 360 -Topic 944 -Publisher FASB -URI https://asc.fasb.org/1943274/2147477875/944-360-45-3 Reference 7: http://www.xbrl.org/2003/role/disclosureRef -Name Accounting Standards Codification -Section 45 -Paragraph 4 -SubTopic 360 -Topic 944 -Publisher FASB -URI https://asc.fasb.org/1943274/2147477875/944-360-45-4 Reference 8: http://www.xbrl.org/2003/role/disclosureRef -Name Accounting Standards Codification -Section 50 -Paragraph 1 -SubTopic 360 -Topic 944 -Publisher FASB -URI https://asc.fasb.org/1943274/2147478586/944-360-50-1 + Details
Name: | us-gaap_GainsLossesOnSalesOfInvestmentRealEstate
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Amount of interest capitalized, including amount of allowance for funds used during construction. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 980 -SubTopic 835 -Section 45 -Paragraph 1 -Publisher FASB -URI https://asc.fasb.org/1943274/2147479123/980-835-45-1 + Details
Name: | us-gaap_InterestCostsIncurredCapitalized
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition The number of real estate properties owned as of the balance sheet date. + References No definition available. + Details
Name: | us-gaap_NumberOfRealEstateProperties
Namespace Prefix: | us-gaap_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | instant

X
- Definition The number of states the entity operates in as of the balance sheet date. + References No definition available. + Details
Name: | us-gaap_NumberOfStatesInWhichEntityOperates
Namespace Prefix: | us-gaap_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | instant

X
- Definition Cash received for the sale of real estate that is not part of an investing activity during the current period. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 230 -SubTopic 10 -Name Accounting Standards Codification -Section 45 -Paragraph 12 -Subparagraph (c) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482740/230-10-45-12 + Details
Name: | us-gaap_ProceedsFromSaleOfRealEstate
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Details
Name: | us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsAxis=udr_HomeOperatingCommunity188InBrooklynNewYorkMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsAxis=udr_HomeOperatingCommunity185InEnglewoodNewJerseyMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancingReceivablePortfolioSegmentAxis=udr_NotesDueOctober2025AndMay2026Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_RealEstatePropertiesAxis=udr_HomeOperatingCommunity478InPhiladelphiaPennsylvaniaMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis=udr_OperatingCommunityMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |