$UDR
UDR, Inc. Stock $udr

$udr Overview Financials Valuation SEC Filings Company Website

2019 Q4 Form 10-K Financial Statement

#000007420821000025 Filed on February 18, 2021

Income Statement

Concept	2019 Q4	2018	2017 Q4
Revenue	$304.8M	$1.047B	$252.9M
YoY Change	13.86%	5.13%	4.07%
Cost Of Revenue	$96.20M	$332.1M	$79.30M
YoY Change	13.71%	6.14%	5.17%
Gross Profit	$208.6M	$714.8M	$173.6M
YoY Change	13.93%	4.67%	3.58%
Gross Profit Margin	68.44%	68.28%	68.64%
Selling, General & Admin	$14.50M	$53.70M	$11.60M
YoY Change	31.82%	-2.01%	-12.78%
% of Gross Profit	6.95%	7.51%	6.68%
Research & Development
YoY Change
% of Gross Profit
Depreciation & Amortization	$145.2M	$435.7M	$111.1M
YoY Change	34.32%	-0.18%	6.83%
% of Gross Profit	69.61%	60.95%	64.0%
Operating Expenses	$162.5M	$494.1M	$125.7M
YoY Change	32.11%	0.0%	5.1%
Operating Profit	$46.10M	$354.7M	$47.90M
YoY Change	-23.29%	55.65%	-0.21%
Interest Expense	$60.50M	$134.2M	-$14.00M
YoY Change	-265.75%	4.24%	-297.18%
% of Operating Profit	131.24%	37.82%	-29.23%
Other Income/Expense, Net		$6.735M
YoY Change		241.7%
Pretax Income	$105.2M	$222.2M	$76.70M
YoY Change	-34.25%	67.83%	36.48%
Income Tax	$0.00	$700.0K	$100.0K
% Of Pretax Income	0.0%	0.31%	0.13%
Net Earnings	$105.2M	$203.1M	$69.20M
YoY Change	17.43%	67.09%	-70.85%
Net Earnings / Revenue	34.53%	19.4%	27.36%
Basic Earnings Per Share	$0.33	$0.74
Diluted Earnings Per Share	$0.33	$0.74	$257.4K
COMMON SHARES
Basic Shares Outstanding	293.1M	268.2M	267.3K
Diluted Shares Outstanding	294.1M	269.5M

Balance Sheet

Concept	2019 Q4	2018	2017 Q4
SHORT-TERM ASSETS
Cash & Short-Term Investments	$8.100M	$185.2M	$2.000M
YoY Change	-95.63%	9160.0%	-4.76%
Cash & Equivalents	$8.106M	$185.2M	$2.038M
Short-Term Investments
Other Short-Term Assets
YoY Change
Inventory
Prepaid Expenses
Receivables
Other Receivables
Total Short-Term Assets	$8.100M	$185.2M	$2.000M
YoY Change	-95.63%	9160.0%	-4.76%
LONG-TERM ASSETS
Property, Plant & Equipment	$8.675B	$6.542B	$6.847B
YoY Change	32.6%	-4.45%	2.31%
Goodwill
YoY Change
Intangibles
YoY Change
Long-Term Investments	$585.5M	$780.9M	$720.8M
YoY Change	0.0%	8.34%	-12.84%
Other Assets	$25.20M	$23.70M	$19.80M
YoY Change	6.33%	19.7%	-1.0%
Total Long-Term Assets	$9.628B	$7.527B	$7.731B
YoY Change	27.93%	-2.65%	0.7%
TOTAL ASSETS
Total Short-Term Assets	$8.100M	$185.2M	$2.000M
Total Long-Term Assets	$9.628B	$7.527B	$7.731B
Total Assets	$9.636B	$7.712B	$7.733B
YoY Change	24.96%	-0.28%	0.7%
SHORT-TERM LIABILITIES
YoY Change
Accounts Payable	$89.90M	$76.00M	$103.0M
YoY Change	18.29%	-26.21%	-0.39%
Accrued Expenses	$243.8M	$38.70M	$33.40M
YoY Change	529.97%	15.87%	13.99%
Deferred Revenue
YoY Change
Short-Term Debt	$300.0M	$101.1M	$0.00
YoY Change	196.74%
Long-Term Debt Due	$110.6M	$71.50M
YoY Change	54.69%
Total Short-Term Liabilities	$931.5M	$440.6M	$278.1M
YoY Change	111.42%	58.43%	2.51%
LONG-TERM LIABILITIES
Long-Term Debt	$4.297B	$3.375B	$3.672B
YoY Change	27.31%	-8.08%	7.94%
Other Long-Term Liabilities	$100.0K	$400.0K	$0.00
YoY Change	-75.0%		-100.0%
Total Long-Term Liabilities	$4.297B	$3.376B	$3.672B
YoY Change	27.3%	-8.06%	7.93%
TOTAL LIABILITIES
Total Short-Term Liabilities	$931.5M	$440.6M	$278.1M
Total Long-Term Liabilities	$4.297B	$3.376B	$3.672B
Total Liabilities	$5.228B	$4.806B	$4.908B
YoY Change	37.01%	-2.07%	33.61%
SHAREHOLDERS EQUITY
Retained Earnings
YoY Change
Common Stock	$2.946M
YoY Change	6.93%
Preferred Stock
YoY Change
Treasury Stock (at cost)
YoY Change
Treasury Stock Shares
Shareholders Equity	$3.359B	$2.906B	$2.826B
YoY Change
Total Liabilities & Shareholders Equity	$9.636B	$7.712B	$7.733B
YoY Change	24.96%	-0.28%	0.7%

Cashflow Statement

Concept	2019 Q4	2018	2017 Q4
OPERATING ACTIVITIES
Net Income	$105.2M	$203.1M	$69.20M
YoY Change	17.43%	67.09%	-70.85%
Depreciation, Depletion And Amortization	$145.2M	$435.7M	$111.1M
YoY Change	34.32%	-0.18%	6.83%
Cash From Operating Activities	$173.8M	$560.7M	$129.6M
YoY Change	12.86%	8.05%	-15.73%
INVESTING ACTIVITIES
Capital Expenditures	-$178.2M	-$268.4M	-$120.7M
YoY Change	243.35%	-43.06%	-43.57%
Acquisitions
YoY Change
Other Investing Activities	-$125.7M	$154.9M	$96.70M
YoY Change	-188.83%	142.03%	-74.09%
Cash From Investing Activities	-$303.9M	-$113.5M	-$24.00M
YoY Change	-439.17%	-72.13%	-115.07%
FINANCING ACTIVITIES
Cash Dividend Paid
YoY Change
Common Stock Issuance & Retirement, Net		-$279.8M
YoY Change
Debt Paid & Issued, Net
YoY Change
Cash From Financing Activities	139.8M	-260.1M	-106.0M
YoY Change	-322.97%	132.65%	-66.27%
NET CHANGE
Cash From Operating Activities	173.8M	560.7M	129.6M
Cash From Investing Activities	-303.9M	-113.5M	-24.00M
Cash From Financing Activities	139.8M	-260.1M	-106.0M
Net Change In Cash	9.700M	187.1M	-400.0K
YoY Change	-94.64%	-67875.72%	-66.67%
FREE CASH FLOW
Cash From Operating Activities	$173.8M	$560.7M	$129.6M
Capital Expenditures	-$178.2M	-$268.4M	-$120.7M
Free Cash Flow	$352.0M	$829.1M	$250.3M
YoY Change	70.96%	-16.28%	-31.93%

Facts In Submission

Frame	Concept Type	Concept / XBRL Key	Value
CY2020	dei	Document Type DocumentType	10-K
CY2020Q4	us-gaap	Commitments And Contingencies CommitmentsAndContingencies
CY2019Q4	us-gaap	Commitments And Contingencies CommitmentsAndContingencies
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CY2019	us-gaap	Type Of Revenue Extensible List TypeOfRevenueExtensibleList	udr:ManagementAndOtherFeesMember
CY2020	us-gaap	Type Of Revenue Extensible List TypeOfRevenueExtensibleList	udr:ManagementAndOtherFeesMember
CY2020	dei	Entity Central Index Key EntityCentralIndexKey	0000074208
CY2020	dei	Current Fiscal Year End Date CurrentFiscalYearEndDate	--12-31
CY2020	dei	Document Fiscal Year Focus DocumentFiscalYearFocus	2020
CY2020	dei	Document Fiscal Period Focus DocumentFiscalPeriodFocus	FY
CY2020	dei	Amendment Flag AmendmentFlag	false
CY2020	dei	Icfr Auditor Attestation Flag IcfrAuditorAttestationFlag	true
CY2019Q4	us-gaap	Common Stock Shares Issued CommonStockSharesIssued	294588305
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CY2020	us-gaap	Type Of Revenue Extensible List TypeOfRevenueExtensibleList	udr:ManagementAndOtherFeesMember
CY2019	us-gaap	Type Of Revenue Extensible List TypeOfRevenueExtensibleList	udr:ManagementAndOtherFeesMember
CY2018	us-gaap	Type Of Revenue Extensible List TypeOfRevenueExtensibleList	udr:ManagementAndOtherFeesMember
CY2020	udr	Community Threshold Period Above Occupancy Threshold CommunityThresholdPeriodAboveOccupancyThreshold	P3M
CY2020	us-gaap	Type Of Revenue Extensible List TypeOfRevenueExtensibleList	udr:ManagementAndOtherFeesMember
CY2019	us-gaap	Type Of Revenue Extensible List TypeOfRevenueExtensibleList	udr:ManagementAndOtherFeesMember
CY2018	us-gaap	Type Of Revenue Extensible List TypeOfRevenueExtensibleList	udr:ManagementAndOtherFeesMember
CY2020	dei	Document Annual Report DocumentAnnualReport	true
CY2020	dei	Document Period End Date DocumentPeriodEndDate	2020-12-31
CY2020	dei	Document Transition Report DocumentTransitionReport	false
CY2020	dei	Entity File Number EntityFileNumber	1-10524
CY2020	dei	Entity Registrant Name EntityRegistrantName	UDR, Inc.
CY2020	dei	Entity Incorporation State Country Code EntityIncorporationStateCountryCode	MD
CY2020	dei	Entity Tax Identification Number EntityTaxIdentificationNumber	54-0857512
CY2020	dei	Entity Address Address Line1 EntityAddressAddressLine1	1745 Shea Center Drive, Suite 200
CY2020	dei	Entity Address City Or Town EntityAddressCityOrTown	Highlands Ranch
CY2020	dei	Entity Address State Or Province EntityAddressStateOrProvince	CO
CY2020	dei	Entity Address Postal Zip Code EntityAddressPostalZipCode	80129
CY2020	dei	City Area Code CityAreaCode	720
CY2020	dei	Local Phone Number LocalPhoneNumber	283-6120
CY2020	dei	Security12b Title Security12bTitle	Common Stock, $0.01 par value
CY2020	dei	Trading Symbol TradingSymbol	UDR
CY2020	dei	Security Exchange Name SecurityExchangeName	NYSE
CY2020	dei	Entity Well Known Seasoned Issuer EntityWellKnownSeasonedIssuer	Yes
CY2020	dei	Entity Voluntary Filers EntityVoluntaryFilers	No
CY2020	dei	Entity Current Reporting Status EntityCurrentReportingStatus	Yes
CY2020	dei	Entity Interactive Data Current EntityInteractiveDataCurrent	Yes
CY2020	dei	Entity Filer Category EntityFilerCategory	Large Accelerated Filer
CY2020	dei	Entity Small Business EntitySmallBusiness	false
CY2020Q4	us-gaap	Line Of Credit LineOfCredit	2800000
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CY2020	dei	Entity Emerging Growth Company EntityEmergingGrowthCompany	false
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CY2020Q4	udr	Real Estate Held For Investment Net Excluding Real Estate Under Development Or Held For Disposition RealEstateHeldForInvestmentNetExcludingRealEstateUnderDevelopmentOrHeldForDisposition	8116363000
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CY2020Q4	udr	Real Estate Under Development Accumulated Depreciation RealEstateUnderDevelopmentAccumulatedDepreciation	1010000
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CY2020Q4	us-gaap	Development In Process DevelopmentInProcess	246867000
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CY2018	us-gaap	Profit Loss ProfitLoss	221542000
CY2020	us-gaap	Net Income Loss Attributable To Redeemable Noncontrolling Interest NetIncomeLossAttributableToRedeemableNoncontrollingInterest	4543000
CY2019	us-gaap	Net Income Loss Attributable To Redeemable Noncontrolling Interest NetIncomeLossAttributableToRedeemableNoncontrollingInterest	14426000
CY2018	us-gaap	Net Income Loss Attributable To Redeemable Noncontrolling Interest NetIncomeLossAttributableToRedeemableNoncontrollingInterest	18215000
CY2020	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	161000
CY2019	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	188000
CY2020	us-gaap	Net Income Loss NetIncomeLoss	64266000
CY2019	us-gaap	Net Income Loss NetIncomeLoss	184965000
CY2018	us-gaap	Net Income Loss NetIncomeLoss	203106000
CY2020	us-gaap	Dividends Preferred Stock DividendsPreferredStock	4230000
CY2019	us-gaap	Dividends Preferred Stock DividendsPreferredStock	4104000
CY2018	us-gaap	Dividends Preferred Stock DividendsPreferredStock	3868000
CY2020	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	60036000
CY2019	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	180861000
CY2018	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	199238000
CY2020	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.20
CY2019	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.63
CY2018	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.74
CY2020	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.20
CY2019	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.63
CY2018	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.74
CY2020	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	294545000
CY2019	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	285247000
CY2018	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	268179000
CY2020	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	294927000
CY2019	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	286015000
CY2018	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	269483000
CY2020	us-gaap	Profit Loss ProfitLoss	68970000
CY2019	us-gaap	Profit Loss ProfitLoss	199579000
CY2018	us-gaap	Profit Loss ProfitLoss	221542000
CY2020	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss Before Reclassification After Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossBeforeReclassificationAfterTax	-3382000
CY2019	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss Before Reclassification After Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossBeforeReclassificationAfterTax	-8437000
CY2018	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss Before Reclassification After Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossBeforeReclassificationAfterTax	4806000
CY2020	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss Reclassification After Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossReclassificationAfterTax	-4827000
CY2019	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss Reclassification After Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossReclassificationAfterTax	2770000
CY2018	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss Reclassification After Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossReclassificationAfterTax	1948000
CY2020	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	1445000
CY2019	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	-11207000
CY2018	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	2858000
CY2020	us-gaap	Comprehensive Income Net Of Tax Including Portion Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest	70415000
CY2019	us-gaap	Comprehensive Income Net Of Tax Including Portion Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest	188372000
CY2018	us-gaap	Comprehensive Income Net Of Tax Including Portion Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest	224400000
CY2020	us-gaap	Comprehensive Income Net Of Tax Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest	4845000
CY2019	us-gaap	Comprehensive Income Net Of Tax Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest	13788000
CY2018	us-gaap	Comprehensive Income Net Of Tax Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest	18680000
CY2020	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	65570000
CY2019	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	174584000
CY2018	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	205720000
CY2017Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	2835364000
CY2018	us-gaap	Net Income Loss NetIncomeLoss	203106000
CY2018	us-gaap	Net Income Loss Attributable To Nonredeemable Noncontrolling Interest NetIncomeLossAttributableToNonredeemableNoncontrollingInterest	-175000
CY2018	us-gaap	Noncontrolling Interest Increase From Sale Of Parent Equity Interest NoncontrollingInterestIncreaseFromSaleOfParentEquityInterest	108000
CY2018	us-gaap	Stock Repurchased During Period Value StockRepurchasedDuringPeriodValue	19988000
CY2018	udr	Long Term Incentive Plan Unit Grants Vestings Net LongTermIncentivePlanUnitGrantsVestingsNet	7305000
CY2018	us-gaap	Stock Issued During Period Value Stock Options Exercised StockIssuedDuringPeriodValueStockOptionsExercised	-23053000
CY2018	us-gaap	Stock Issued During Period Value Share Based Compensation StockIssuedDuringPeriodValueShareBasedCompensation	-508000
CY2018	us-gaap	Stock Issued During Period Value New Issues StockIssuedDuringPeriodValueNewIssues	299825000
CY2018	us-gaap	Stock Issued During Period Value Conversion Of Units StockIssuedDuringPeriodValueConversionOfUnits	13328000
CY2018	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	1.29
CY2018	us-gaap	Dividends Common Stock Cash DividendsCommonStockCash	348079000
CY2018	us-gaap	Preferred Stock Per Share Amounts Of Preferred Dividends In Arrears PreferredStockPerShareAmountsOfPreferredDividendsInArrears	1.3968
CY2018	us-gaap	Preferred Stock Dividends Income Statement Impact PreferredStockDividendsIncomeStatementImpact	3868000
CY2018	us-gaap	Minority Interest Change In Redemption Value MinorityInterestChangeInRedemptionValue	-43552000
CY2018Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	2922777000
CY2019	us-gaap	Net Income Loss NetIncomeLoss	184965000
CY2019	us-gaap	Net Income Loss Attributable To Nonredeemable Noncontrolling Interest NetIncomeLossAttributableToNonredeemableNoncontrollingInterest	-125000
CY2019	us-gaap	Noncontrolling Interest Increase From Sale Of Parent Equity Interest NoncontrollingInterestIncreaseFromSaleOfParentEquityInterest	125000
CY2019	udr	Long Term Incentive Plan Unit Grants Vestings Net LongTermIncentivePlanUnitGrantsVestingsNet	13370000
CY2019	udr	Other Comprehensive Income Loss Net Of Tax Including Portion Attributable To Noncontrolling Interest OtherComprehensiveIncomeLossNetOfTaxIncludingPortionAttributableToNoncontrollingInterest	-10381000
CY2019	us-gaap	Stock Issued During Period Value Share Based Compensation StockIssuedDuringPeriodValueShareBasedCompensation	2088000
CY2019	us-gaap	Stock Issued During Period Value New Issues StockIssuedDuringPeriodValueNewIssues	725315000
CY2019	us-gaap	Stock Issued During Period Value Conversion Of Units StockIssuedDuringPeriodValueConversionOfUnits	134031000
CY2019	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	1.37
CY2019	us-gaap	Dividends Common Stock Cash DividendsCommonStockCash	395113000
CY2019	us-gaap	Preferred Stock Per Share Amounts Of Preferred Dividends In Arrears PreferredStockPerShareAmountsOfPreferredDividendsInArrears	1.4832
CY2019	us-gaap	Preferred Stock Dividends Income Statement Impact PreferredStockDividendsIncomeStatementImpact	4104000
CY2019	us-gaap	Minority Interest Change In Redemption Value MinorityInterestChangeInRedemptionValue	-183884000
CY2019Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	3389314000
CY2020	us-gaap	Net Income Loss NetIncomeLoss	64266000
CY2020	us-gaap	Net Income Loss Attributable To Nonredeemable Noncontrolling Interest NetIncomeLossAttributableToNonredeemableNoncontrollingInterest	-99000
CY2020	us-gaap	Minority Interest Decrease From Redemptions MinorityInterestDecreaseFromRedemptions	125000
CY2020	udr	Long Term Incentive Plan Unit Grants Vestings Net LongTermIncentivePlanUnitGrantsVestingsNet	-6355000
CY2020	udr	Other Comprehensive Income Loss Net Of Tax Including Portion Attributable To Noncontrolling Interest OtherComprehensiveIncomeLossNetOfTaxIncludingPortionAttributableToNoncontrollingInterest	1304000
CY2020	us-gaap	Stock Issued During Period Value Share Based Compensation StockIssuedDuringPeriodValueShareBasedCompensation	2887000
CY2020	us-gaap	Stock Issued During Period Value New Issues StockIssuedDuringPeriodValueNewIssues	102234000
CY2020	us-gaap	Stock Issued During Period Value Conversion Of Units StockIssuedDuringPeriodValueConversionOfUnits	12666000
CY2020	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	1.44
CY2020	us-gaap	Dividends Common Stock Cash DividendsCommonStockCash	425233000
CY2020	us-gaap	Stock Repurchased During Period Value StockRepurchasedDuringPeriodValue	19795000
CY2020	us-gaap	Preferred Stock Per Share Amounts Of Preferred Dividends In Arrears PreferredStockPerShareAmountsOfPreferredDividendsInArrears	1.5592
CY2020	us-gaap	Preferred Stock Dividends Income Statement Impact PreferredStockDividendsIncomeStatementImpact	4230000
CY2020	us-gaap	Minority Interest Change In Redemption Value MinorityInterestChangeInRedemptionValue	143741000
CY2020Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	3258591000
CY2020	us-gaap	Profit Loss ProfitLoss	68970000
CY2019	us-gaap	Profit Loss ProfitLoss	199579000
CY2018	us-gaap	Profit Loss ProfitLoss	221542000
CY2020	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	618629000
CY2019	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	507923000
CY2018	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	435679000
CY2020	us-gaap	Gains Losses On Sales Of Investment Real Estate GainsLossesOnSalesOfInvestmentRealEstate	119277000
CY2019	us-gaap	Gains Losses On Sales Of Investment Real Estate GainsLossesOnSalesOfInvestmentRealEstate	5282000
CY2018	us-gaap	Gains Losses On Sales Of Investment Real Estate GainsLossesOnSalesOfInvestmentRealEstate	136197000
CY2020	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	18844000
CY2019	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	137873000
CY2018	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	-5055000
CY2020	udr	Return On Investment In Equity Method Investments ReturnOnInvestmentInEquityMethodInvestments	20664000
CY2019	udr	Return On Investment In Equity Method Investments ReturnOnInvestmentInEquityMethodInvestments	5179000
CY2018	udr	Return On Investment In Equity Method Investments ReturnOnInvestmentInEquityMethodInvestments	4248000
CY2020	us-gaap	Share Based Compensation ShareBasedCompensation	19616000
CY2019	us-gaap	Share Based Compensation ShareBasedCompensation	24330000
CY2018	us-gaap	Share Based Compensation ShareBasedCompensation	14244000
CY2020	us-gaap	Gains Losses On Extinguishment Of Debt GainsLossesOnExtinguishmentOfDebt	-49190000
CY2019	us-gaap	Gains Losses On Extinguishment Of Debt GainsLossesOnExtinguishmentOfDebt	-29594000
CY2018	us-gaap	Gains Losses On Extinguishment Of Debt GainsLossesOnExtinguishmentOfDebt	-3299000
CY2020	us-gaap	Other Operating Activities Cash Flow Statement OtherOperatingActivitiesCashFlowStatement	12193000
CY2019	us-gaap	Other Operating Activities Cash Flow Statement OtherOperatingActivitiesCashFlowStatement	10364000
CY2018	us-gaap	Other Operating Activities Cash Flow Statement OtherOperatingActivitiesCashFlowStatement	1699000
CY2020	us-gaap	Increase Decrease In Operating Assets IncreaseDecreaseInOperatingAssets	44670000
CY2019	us-gaap	Increase Decrease In Operating Assets IncreaseDecreaseInOperatingAssets	10956000
CY2018	us-gaap	Increase Decrease In Operating Assets IncreaseDecreaseInOperatingAssets	13880000
CY2020	us-gaap	Increase Decrease In Operating Liabilities IncreaseDecreaseInOperatingLiabilities	-2155000
CY2019	us-gaap	Increase Decrease In Operating Liabilities IncreaseDecreaseInOperatingLiabilities	7846000
CY2018	us-gaap	Increase Decrease In Operating Liabilities IncreaseDecreaseInOperatingLiabilities	24987000
CY2020	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	604316000
CY2019	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	630704000
CY2018	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	560676000
CY2020	us-gaap	Payments To Acquire Buildings PaymentsToAcquireBuildings	407829000
CY2019	us-gaap	Payments To Acquire Buildings PaymentsToAcquireBuildings	1370770000
CY2020	us-gaap	Proceeds From Sale Of Real Estate Heldforinvestment ProceedsFromSaleOfRealEstateHeldforinvestment	277886000
CY2019	us-gaap	Proceeds From Sale Of Real Estate Heldforinvestment ProceedsFromSaleOfRealEstateHeldforinvestment	38000000
CY2018	us-gaap	Proceeds From Sale Of Real Estate Heldforinvestment ProceedsFromSaleOfRealEstateHeldforinvestment	247031000
CY2020	us-gaap	Payments To Develop Real Estate Assets PaymentsToDevelopRealEstateAssets	121240000
CY2019	us-gaap	Payments To Develop Real Estate Assets PaymentsToDevelopRealEstateAssets	25401000
CY2018	us-gaap	Payments To Develop Real Estate Assets PaymentsToDevelopRealEstateAssets	150238000
CY2020	us-gaap	Payments For Capital Improvements PaymentsForCapitalImprovements	163105000
CY2019	us-gaap	Payments For Capital Improvements PaymentsForCapitalImprovements	167188000
CY2018	us-gaap	Payments For Capital Improvements PaymentsForCapitalImprovements	112359000
CY2020	us-gaap	Payments To Acquire Furniture And Fixtures PaymentsToAcquireFurnitureAndFixtures	11008000
CY2019	us-gaap	Payments To Acquire Furniture And Fixtures PaymentsToAcquireFurnitureAndFixtures	17159000
CY2018	us-gaap	Payments To Acquire Furniture And Fixtures PaymentsToAcquireFurnitureAndFixtures	4850000
CY2020	us-gaap	Payments To Acquire Interest In Subsidiaries And Affiliates PaymentsToAcquireInterestInSubsidiariesAndAffiliates	76073000
CY2019	us-gaap	Payments To Acquire Interest In Subsidiaries And Affiliates PaymentsToAcquireInterestInSubsidiariesAndAffiliates	93059000
CY2018	us-gaap	Payments To Acquire Interest In Subsidiaries And Affiliates PaymentsToAcquireInterestInSubsidiariesAndAffiliates	112025000
CY2020	us-gaap	Proceeds From Equity Method Investment Dividends Or Distributions Return Of Capital ProceedsFromEquityMethodInvestmentDividendsOrDistributionsReturnOfCapital	49342000
CY2019	us-gaap	Proceeds From Equity Method Investment Dividends Or Distributions Return Of Capital ProceedsFromEquityMethodInvestmentDividendsOrDistributionsReturnOfCapital	72441000
CY2018	us-gaap	Proceeds From Equity Method Investment Dividends Or Distributions Return Of Capital ProceedsFromEquityMethodInvestmentDividendsOrDistributionsReturnOfCapital	42683000
CY2020	udr	Payments For Deposits On Pending Acquisitions PaymentsForDepositsOnPendingAcquisitions	-1530000
CY2019	udr	Payments For Deposits On Pending Acquisitions PaymentsForDepositsOnPendingAcquisitions	-12160000
CY2018	udr	Payments For Deposits On Pending Acquisitions PaymentsForDepositsOnPendingAcquisitions	-1000000
CY2020	us-gaap	Payments For Proceeds From Loans Receivable PaymentsForProceedsFromLoansReceivable	7285000
CY2019	us-gaap	Payments For Proceeds From Loans Receivable PaymentsForProceedsFromLoansReceivable	111391000
CY2018	us-gaap	Payments For Proceeds From Loans Receivable PaymentsForProceedsFromLoansReceivable	22790000
CY2020	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-460842000
CY2019	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-1686687000
CY2018	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-113548000
CY2020	us-gaap	Repayments Of Secured Debt RepaymentsOfSecuredDebt	425839000
CY2019	us-gaap	Repayments Of Secured Debt RepaymentsOfSecuredDebt	162253000
CY2018	us-gaap	Repayments Of Secured Debt RepaymentsOfSecuredDebt	279243000
CY2020	us-gaap	Proceeds From Issuance Of Secured Debt ProceedsFromIssuanceOfSecuredDebt	160930000
CY2019	us-gaap	Proceeds From Issuance Of Secured Debt ProceedsFromIssuanceOfSecuredDebt	162500000
CY2018	us-gaap	Proceeds From Issuance Of Secured Debt ProceedsFromIssuanceOfSecuredDebt	80000000
CY2020	us-gaap	Repayments Of Unsecured Debt RepaymentsOfUnsecuredDebt	300000000
CY2019	us-gaap	Repayments Of Unsecured Debt RepaymentsOfUnsecuredDebt	700000000
CY2020	us-gaap	Proceeds From Issuance Of Unsecured Debt ProceedsFromIssuanceOfUnsecuredDebt	959419000
CY2019	us-gaap	Proceeds From Issuance Of Unsecured Debt ProceedsFromIssuanceOfUnsecuredDebt	1099816000
CY2018	us-gaap	Proceeds From Issuance Of Unsecured Debt ProceedsFromIssuanceOfUnsecuredDebt	299994000
CY2020	us-gaap	Proceeds From Repayments Of Commercial Paper ProceedsFromRepaymentsOfCommercialPaper	-110000000
CY2019	us-gaap	Proceeds From Repayments Of Commercial Paper ProceedsFromRepaymentsOfCommercialPaper	198885000
CY2018	us-gaap	Proceeds From Repayments Of Commercial Paper ProceedsFromRepaymentsOfCommercialPaper	-198885000
CY2020	us-gaap	Proceeds From Repayments Of Lines Of Credit ProceedsFromRepaymentsOfLinesOfCredit	11441000
CY2019	us-gaap	Proceeds From Repayments Of Lines Of Credit ProceedsFromRepaymentsOfLinesOfCredit	16567000
CY2018	us-gaap	Proceeds From Repayments Of Lines Of Credit ProceedsFromRepaymentsOfLinesOfCredit	-21751000
CY2020	us-gaap	Proceeds From Issuance Of Common Stock ProceedsFromIssuanceOfCommonStock	102234000
CY2019	us-gaap	Proceeds From Issuance Of Common Stock ProceedsFromIssuanceOfCommonStock	725315000
CY2018	us-gaap	Proceeds From Issuance Of Common Stock ProceedsFromIssuanceOfCommonStock	299825000
CY2020	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	19795000
CY2018	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	19988000
CY2020	us-gaap	Payments Of Dividends Minority Interest PaymentsOfDividendsMinorityInterest	32038000
CY2019	us-gaap	Payments Of Dividends Minority Interest PaymentsOfDividendsMinorityInterest	31580000
CY2018	us-gaap	Payments Of Dividends Minority Interest PaymentsOfDividendsMinorityInterest	32457000
CY2020	us-gaap	Payments Of Dividends Preferred Stock And Preference Stock PaymentsOfDividendsPreferredStockAndPreferenceStock	4217000
CY2019	us-gaap	Payments Of Dividends Preferred Stock And Preference Stock PaymentsOfDividendsPreferredStockAndPreferenceStock	4063000
CY2018	us-gaap	Payments Of Dividends Preferred Stock And Preference Stock PaymentsOfDividendsPreferredStockAndPreferenceStock	3836000
CY2020	us-gaap	Payments Of Dividends Common Stock PaymentsOfDividendsCommonStock	419350000
CY2019	us-gaap	Payments Of Dividends Common Stock PaymentsOfDividendsCommonStock	383079000
CY2018	us-gaap	Payments Of Dividends Common Stock PaymentsOfDividendsCommonStock	342241000
CY2020	us-gaap	Payments Of Debt Extinguishment Costs PaymentsOfDebtExtinguishmentCosts	62645000
CY2019	us-gaap	Payments Of Debt Extinguishment Costs PaymentsOfDebtExtinguishmentCosts	27782000
CY2018	us-gaap	Payments Of Debt Extinguishment Costs PaymentsOfDebtExtinguishmentCosts	3178000
CY2020	us-gaap	Proceeds From Payments For Other Financing Activities ProceedsFromPaymentsForOtherFinancingActivities	-12734000
CY2019	us-gaap	Proceeds From Payments For Other Financing Activities ProceedsFromPaymentsForOtherFinancingActivities	-13943000
CY2018	us-gaap	Proceeds From Payments For Other Financing Activities ProceedsFromPaymentsForOtherFinancingActivities	-38307000
CY2020	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-152594000
CY2019	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	880383000
CY2018	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-260067000
CY2020	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Excluding Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseExcludingExchangeRateEffect	-9120000
CY2019	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Excluding Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseExcludingExchangeRateEffect	-175600000
CY2018	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Excluding Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseExcludingExchangeRateEffect	187061000
CY2019Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	33291000
CY2018Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	208891000
CY2017Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	21830000
CY2020Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	24171000
CY2019Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	33291000
CY2018Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	208891000
CY2020	us-gaap	Interest Paid Net InterestPaidNet	172326000
CY2019	us-gaap	Interest Paid Net InterestPaidNet	169558000
CY2018	us-gaap	Interest Paid Net InterestPaidNet	132466000
CY2020	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	1029000
CY2019	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	1519000
CY2018	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	625000
CY2020	us-gaap	Transfer To Other Real Estate TransferToOtherRealEstate	14700000
CY2019	us-gaap	Transfer To Other Real Estate TransferToOtherRealEstate	288108000
CY2019	us-gaap	Transfer To Investments TransferToInvestments	60625000
CY2019	us-gaap	Noncash Or Part Noncash Acquisition Debt Assumed1 NoncashOrPartNoncashAcquisitionDebtAssumed1	551800000
CY2020	udr	Notes Receivable Cancellation NotesReceivableCancellation	2250000
CY2020	us-gaap	Provision For Loan Lease And Other Losses ProvisionForLoanLeaseAndOtherLosses	2182000
CY2019	udr	Recognition Of Operating Lease Right Of Use Assets RecognitionOfOperatingLeaseRightOfUseAssets	94349000
CY2019	udr	Operating Lease Liabilities Incurred With Right Of Use Asset OperatingLeaseLiabilitiesIncurredWithRightOfUseAsset	88336000
CY2019	udr	Right Of Use Assets Change Due To Remeasurement RightOfUseAssetsChangeDueToRemeasurement	111055000
CY2020	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Vested In Period Fair Value1 SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsVestedInPeriodFairValue1	23501000
CY2019	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Vested In Period Fair Value1 SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsVestedInPeriodFairValue1	14742000
CY2018	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Vested In Period Fair Value1 SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsVestedInPeriodFairValue1	4397000
CY2020	us-gaap	Capital Expenditures Incurred But Not Yet Paid CapitalExpendituresIncurredButNotYetPaid	31387000
CY2019	us-gaap	Capital Expenditures Incurred But Not Yet Paid CapitalExpendituresIncurredButNotYetPaid	16635000
CY2018	us-gaap	Capital Expenditures Incurred But Not Yet Paid CapitalExpendituresIncurredButNotYetPaid	10304000
CY2020	us-gaap	Conversion Of Stock Shares Converted1 ConversionOfStockSharesConverted1	303146
CY2019	us-gaap	Conversion Of Stock Shares Converted1 ConversionOfStockSharesConverted1	3165780
CY2018	us-gaap	Conversion Of Stock Shares Converted1 ConversionOfStockSharesConverted1	348057
CY2020	us-gaap	Stock Issued During Period Value Conversion Of Units StockIssuedDuringPeriodValueConversionOfUnits	12666000
CY2019	us-gaap	Stock Issued During Period Value Conversion Of Units StockIssuedDuringPeriodValueConversionOfUnits	134031000
CY2018	us-gaap	Stock Issued During Period Value Conversion Of Units StockIssuedDuringPeriodValueConversionOfUnits	13328000
CY2020Q4	us-gaap	Dividends Payable Current And Noncurrent DividendsPayableCurrentAndNoncurrent	115795000
CY2019Q4	us-gaap	Dividends Payable Current And Noncurrent DividendsPayableCurrentAndNoncurrent	109382000
CY2018Q4	us-gaap	Dividends Payable Current And Noncurrent DividendsPayableCurrentAndNoncurrent	97666000
CY2019Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	8106000
CY2018Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	185216000
CY2017Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	2038000
CY2019Q4	us-gaap	Restricted Cash And Cash Equivalents RestrictedCashAndCashEquivalents	25185000
CY2018Q4	us-gaap	Restricted Cash And Cash Equivalents RestrictedCashAndCashEquivalents	23675000
CY2017Q4	us-gaap	Restricted Cash And Cash Equivalents RestrictedCashAndCashEquivalents	19792000
CY2019Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	33291000
CY2018Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	208891000
CY2017Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	21830000
CY2020Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	1409000
CY2019Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	8106000
CY2018Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	185216000
CY2020Q4	us-gaap	Restricted Cash And Cash Equivalents RestrictedCashAndCashEquivalents	22762000
CY2019Q4	us-gaap	Restricted Cash And Cash Equivalents RestrictedCashAndCashEquivalents	25185000
CY2018Q4	us-gaap	Restricted Cash And Cash Equivalents RestrictedCashAndCashEquivalents	23675000
CY2020Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	24171000
CY2019Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	33291000
CY2018Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	208891000
CY2020Q4	us-gaap	Number Of Real Estate Properties NumberOfRealEstateProperties	149
CY2020Q4	udr	Number Of Markets Operating Within NumberOfMarketsOperatingWithin	21
CY2020Q4	udr	Number Of Apartment Homes Owned And Consolidated By Company NumberOfApartmentHomesOwnedAndConsolidatedByCompany	48283
CY2020	udr	Joint Venture Number Of Completed Or To Be Completed Apartment Homes In Operating Communities JointVentureNumberOfCompletedOrToBeCompletedApartmentHomesInOperatingCommunities	5295
CY2020	udr	Number Of Apartment Homes With Ownership Interest Through Preferred Equity Investments NumberOfApartmentHomesWithOwnershipInterestThroughPreferredEquityInvestments	2165
CY2020Q4	us-gaap	Partners Capital Account Units PartnersCapitalAccountUnits	184800000
CY2019Q4	us-gaap	Partners Capital Account Units PartnersCapitalAccountUnits	184100000
CY2020	udr	Development Costs Excluding Direct Costs And Capitalized Interest DevelopmentCostsExcludingDirectCostsAndCapitalizedInterest	12000000.0
CY2019	udr	Development Costs Excluding Direct Costs And Capitalized Interest DevelopmentCostsExcludingDirectCostsAndCapitalizedInterest	8400000
CY2018	udr	Development Costs Excluding Direct Costs And Capitalized Interest DevelopmentCostsExcludingDirectCostsAndCapitalizedInterest	7500000
CY2020	us-gaap	Interest Costs Incurred Capitalized InterestCostsIncurredCapitalized	7000000.0
CY2019	us-gaap	Interest Costs Incurred Capitalized InterestCostsIncurredCapitalized	5100000
CY2018	us-gaap	Interest Costs Incurred Capitalized InterestCostsIncurredCapitalized	10600000
CY2020	us-gaap	Provision For Loan Losses Expensed ProvisionForLoanLossesExpensed	700000
CY2020Q4	us-gaap	Notes Receivable Gross NotesReceivableGross	158685000
CY2019Q4	us-gaap	Notes Receivable Gross NotesReceivableGross	153650000
CY2020Q4	us-gaap	Financing Receivable Allowance For Credit Losses FinancingReceivableAllowanceForCreditLosses	693000
CY2020Q4	us-gaap	Notes Receivable Net NotesReceivableNet	157992000
CY2019Q4	us-gaap	Notes Receivable Net NotesReceivableNet	153650000
CY2020	us-gaap	Other Interest And Dividend Income OtherInterestAndDividendIncome	9100000
CY2019	us-gaap	Other Interest And Dividend Income OtherInterestAndDividendIncome	5500000
CY2018	us-gaap	Other Interest And Dividend Income OtherInterestAndDividendIncome	4100000
CY2020	udr	Proceeds From Promoted Interest Received ProceedsFromPromotedInterestReceived	0
CY2019	udr	Proceeds From Promoted Interest Received ProceedsFromPromotedInterestReceived	8500000
CY2018	udr	Proceeds From Promoted Interest Received ProceedsFromPromotedInterestReceived	0
CY2018	us-gaap	Interest Income Related Party InterestIncomeRelatedParty	0
CY2019	us-gaap	Interest Income Related Party InterestIncomeRelatedParty	0
CY2020	us-gaap	Interest Income Related Party InterestIncomeRelatedParty	0
CY2020	udr	Minimum Period Of Time Units Have Been Outstanding Prior To Redemption MinimumPeriodOfTimeUnitsHaveBeenOutstandingPriorToRedemption	P1Y
CY2020	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	0
CY2020Q4	us-gaap	Deferred Tax Liabilities DeferredTaxLiabilities	3200000
CY2019Q4	us-gaap	Deferred Tax Liabilities DeferredTaxLiabilities	1600000
CY2019	us-gaap	Advertising Expense AdvertisingExpense	6500000
CY2018	us-gaap	Advertising Expense AdvertisingExpense	6700000
CY2020	us-gaap	Advertising Expense AdvertisingExpense	7900000
CY2019Q4	us-gaap	Derivative Collateral Right To Reclaim Securities DerivativeCollateralRightToReclaimSecurities	3000
CY2020	udr	Adjustment To Rental Income Covid19 Pandemic AdjustmentToRentalIncomeCovid19Pandemic	-18400000
CY2020	udr	Adjustment To Profit Loss Covid19 Pandemic AdjustmentToProfitLossCovid19Pandemic	-1100000
CY2020	us-gaap	Impairment Of Investments ImpairmentOfInvestments	3100000
CY2020	us-gaap	Use Of Estimates UseOfEstimates	<p style="font-family:'Times New Roman','Times','serif';font-size:10pt;font-weight:bold;margin:0pt 0pt 10pt 0pt;">Use of Estimates</p><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;text-indent:36pt;margin:0pt 0pt 10pt 0pt;">The preparation of these financial statements in accordance with GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and the disclosure of contingent liabilities at the dates of the financial statements and the amounts of revenues and expenses during the reporting periods. Actual amounts realized or paid could differ from those estimates.</p>
CY2020	udr	Minimum Percentage Of Carrying Value Of Real Estate Portfolio Held By Company MinimumPercentageOfCarryingValueOfRealEstatePortfolioHeldByCompany	0.10
CY2020Q4	us-gaap	Number Of Real Estate Properties NumberOfRealEstateProperties	149
CY2020Q4	us-gaap	Number Of States In Which Entity Operates NumberOfStatesInWhichEntityOperates	13
CY2020Q4	udr	Number Of Apartment Homes Owned And Consolidated By Company NumberOfApartmentHomesOwnedAndConsolidatedByCompany	48283
CY2020Q4	us-gaap	Land Land	2139765000
CY2019Q4	us-gaap	Land Land	2164032000
CY2020Q4	us-gaap	Land Improvements LandImprovements	233823000
CY2019Q4	us-gaap	Land Improvements LandImprovements	224964000
CY2020Q4	udr	Investment Building And Building Improvements And Furniture Fixtures And Equipment InvestmentBuildingAndBuildingImprovementsAndFurnitureFixturesAndEquipment	10292782000
CY2019Q4	udr	Investment Building And Building Improvements And Furniture Fixtures And Equipment InvestmentBuildingAndBuildingImprovementsAndFurnitureFixturesAndEquipment	10102758000
CY2020Q4	us-gaap	Business Combination Recognized Identifiable Assets Acquired And Liabilities Assumed Intangible Assets Other Than Goodwill BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedIntangibleAssetsOtherThanGoodwill	40570000
CY2019Q4	us-gaap	Business Combination Recognized Identifiable Assets Acquired And Liabilities Assumed Intangible Assets Other Than Goodwill BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedIntangibleAssetsOtherThanGoodwill	40570000
CY2020Q4	udr	Real Estate Owned Gross RealEstateOwnedGross	13071472000
CY2019Q4	udr	Real Estate Owned Gross RealEstateOwnedGross	12602101000
CY2020Q4	udr	Real Estates Owned Accumulated Depreciation RealEstatesOwnedAccumulatedDepreciation	4605366000
CY2019Q4	udr	Real Estates Owned Accumulated Depreciation RealEstatesOwnedAccumulatedDepreciation	4131353000
CY2020Q4	us-gaap	Real Estate Investment Property Net RealEstateInvestmentPropertyNet	8466106000
CY2019Q4	us-gaap	Real Estate Investment Property Net RealEstateInvestmentPropertyNet	8470748000
CY2020Q4	udr	Real Estate Owned Accumulated Amortization Intangible Assets RealEstateOwnedAccumulatedAmortizationIntangibleAssets	5800000
CY2019Q4	us-gaap	Payments To Acquire Businesses Gross PaymentsToAcquireBusinessesGross	109200000
CY2019Q4	udr	Gain From Consolidation Of Joint Venture GainFromConsolidationOfJointVenture	0
CY2020Q4	udr	Number Of Communities Under Development NumberOfCommunitiesUnderDevelopment	5
CY2020Q4	udr	Number Of Homes Under Development NumberOfHomesUnderDevelopment	1378
CY2020	udr	Number Of Homes Completed NumberOfHomesCompleted	202
CY2020Q4	udr	Number Of Extensions Of Loan NumberOfExtensionsOfLoan	2
CY2020Q4	udr	Investments On Development Communities InvestmentsOnDevelopmentCommunities	247900000
CY2020Q4	us-gaap	Finite Lived Intangible Assets Net FiniteLivedIntangibleAssetsNet	37413000
CY2020Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Next Twelve Months FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths	3393000
CY2020Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Two FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo	3258000
CY2020Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Three FiniteLivedIntangibleAssetsAmortizationExpenseYearThree	3046000
CY2020Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Four FiniteLivedIntangibleAssetsAmortizationExpenseYearFour	2900000
CY2020Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Five FiniteLivedIntangibleAssetsAmortizationExpenseYearFive	2754000
CY2020Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense After Year Five FiniteLivedIntangibleAssetsAmortizationExpenseAfterYearFive	22062000
CY2020Q4	us-gaap	Equity Method Investments EquityMethodInvestments	595486000
CY2019Q4	us-gaap	Equity Method Investments EquityMethodInvestments	585490000
CY2020	udr	Income From Participating Loan IncomeFromParticipatingLoan	18844000
CY2019	udr	Income From Participating Loan IncomeFromParticipatingLoan	137873000
CY2018	udr	Income From Participating Loan IncomeFromParticipatingLoan	-5055000
CY2020Q4	us-gaap	Deferred Gain On Sale Of Property DeferredGainOnSaleOfProperty	8400000
CY2019Q4	us-gaap	Deferred Gain On Sale Of Property DeferredGainOnSaleOfProperty	9000000.0
CY2020Q4	udr	Number Of Communities Subject To Ground Leases NumberOfCommunitiesSubjectToGroundLeases	6
CY2020	us-gaap	Lessee Operating Lease Existence Of Option To Extend LesseeOperatingLeaseExistenceOfOptionToExtend	true
CY2020Q4	us-gaap	Operating Lease Right Of Use Asset OperatingLeaseRightOfUseAsset	200900000
CY2019Q4	us-gaap	Operating Lease Right Of Use Asset OperatingLeaseRightOfUseAsset	204200000
CY2020Q4	us-gaap	Operating Lease Liability OperatingLeaseLiability	195600000
CY2019Q4	us-gaap	Operating Lease Liability OperatingLeaseLiability	198600000
CY2020Q4	us-gaap	Operating Lease Weighted Average Remaining Lease Term1 OperatingLeaseWeightedAverageRemainingLeaseTerm1	P43Y10M24D
CY2019Q4	us-gaap	Operating Lease Weighted Average Remaining Lease Term1 OperatingLeaseWeightedAverageRemainingLeaseTerm1	P44Y8M12D
CY2019Q4	us-gaap	Operating Lease Weighted Average Discount Rate Percent OperatingLeaseWeightedAverageDiscountRatePercent	0.050
CY2020Q4	us-gaap	Operating Lease Weighted Average Discount Rate Percent OperatingLeaseWeightedAverageDiscountRatePercent	0.050
CY2019Q4	us-gaap	Derivative Fair Value Of Derivative Liability Amount Offset Against Collateral DerivativeFairValueOfDerivativeLiabilityAmountOffsetAgainstCollateral	139000
CY2019	udr	Right Of Use Assets Change Due To Remeasurement RightOfUseAssetsChangeDueToRemeasurement	111100000
CY2020Q4	udr	Number Of Ground Leases Becoming Fixed NumberOfGroundLeasesBecomingFixed	2
CY2020	udr	Operating Lease Right Of Use Asset Amortization OperatingLeaseRightOfUseAssetAmortization	3300000
CY2020	udr	Operating Lease Liabilities Amortization OperatingLeaseLiabilitiesAmortization	3000000.0
CY2019	udr	Operating Lease Right Of Use Asset Amortization OperatingLeaseRightOfUseAssetAmortization	1200000
CY2019	udr	Operating Lease Liabilities Amortization OperatingLeaseLiabilitiesAmortization	800000
CY2020	us-gaap	Operating Lease Cost OperatingLeaseCost	300000
CY2019	us-gaap	Operating Lease Cost OperatingLeaseCost	400000
CY2020Q4	us-gaap	Lessor Operating Lease Payments To Be Received Next Twelve Months LessorOperatingLeasePaymentsToBeReceivedNextTwelveMonths	23970000
CY2020Q4	us-gaap	Lessor Operating Lease Payments To Be Received Two Years LessorOperatingLeasePaymentsToBeReceivedTwoYears	22749000
CY2020Q4	us-gaap	Lessor Operating Lease Payments To Be Received Three Years LessorOperatingLeasePaymentsToBeReceivedThreeYears	20855000
CY2020Q4	us-gaap	Lessor Operating Lease Payments To Be Received Four Years LessorOperatingLeasePaymentsToBeReceivedFourYears	19132000
CY2020Q4	us-gaap	Lessor Operating Lease Payments To Be Received Five Years LessorOperatingLeasePaymentsToBeReceivedFiveYears	15972000
CY2020Q4	us-gaap	Lessor Operating Lease Payments To Be Received Thereafter LessorOperatingLeasePaymentsToBeReceivedThereafter	70396000
CY2020Q4	us-gaap	Lessor Operating Lease Payments To Be Received LessorOperatingLeasePaymentsToBeReceived	173074000
CY2020	us-gaap	Variable Lease Cost VariableLeaseCost	200000
CY2019	us-gaap	Variable Lease Cost VariableLeaseCost	400000
CY2020Q4	us-gaap	Long Term Debt LongTermDebt	4976548000
CY2019Q4	us-gaap	Long Term Debt LongTermDebt	4707524000
CY2020	us-gaap	Debt Instrument Interest Rate During Period DebtInstrumentInterestRateDuringPeriod	0.0291
CY2020Q4	udr	Secured Debt Encumbers Real Estate Owned Amount SecuredDebtEncumbersRealEstateOwnedAmount	1400000000
CY2020Q4	udr	Secured Debt Encumbers Real Estate Owned Percent SecuredDebtEncumbersRealEstateOwnedPercent	0.106
CY2020Q4	udr	Secured Debt Unencumbered Real Estate Owned Amount SecuredDebtUnencumberedRealEstateOwnedAmount	11700000000
CY2020Q4	udr	Secured Debt Unencumbered Real Estate Owned Percent SecuredDebtUnencumberedRealEstateOwnedPercent	0.894
CY2020Q4	us-gaap	Debt Instrument Unamortized Premium DebtInstrumentUnamortizedPremium	12900000
CY2019Q4	us-gaap	Debt Instrument Unamortized Premium DebtInstrumentUnamortizedPremium	35300000
CY2015Q4	udr	Extension Period Of Option On Loan ExtensionPeriodOfOptionOnLoan	P6M
CY2020Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Next Twelve Months LongTermDebtMaturitiesRepaymentsOfPrincipalInNextTwelveMonths	191097000
CY2020Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Two LongTermDebtMaturitiesRepaymentsOfPrincipalInYearTwo	29164000
CY2020Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Three LongTermDebtMaturitiesRepaymentsOfPrincipalInYearThree	351183000
CY2020Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Four LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFour	110924000
CY2020Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Five LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFive	473189000
CY2020Q4	udr	Long Term Debt Maturities Repayment Of Principle In Year Six LongTermDebtMaturitiesRepaymentOfPrincipleInYearSix	351070000
CY2020Q4	udr	Long Term Debt Maturities Repayment Of Principle In Year Seven LongTermDebtMaturitiesRepaymentOfPrincipleInYearSeven	301111000
CY2020Q4	udr	Long Term Debt Maturities Repayment Of Principle In Year Eight LongTermDebtMaturitiesRepaymentOfPrincipleInYearEight	422466000
CY2020Q4	udr	Long Term Debt Maturities Repayment Of Principle In Year Nine LongTermDebtMaturitiesRepaymentOfPrincipleInYearNine	444584000
CY2020Q4	udr	Long Term Debt Maturities Repayment Of Principle In Year Ten LongTermDebtMaturitiesRepaymentOfPrincipleInYearTen	672500000
CY2020Q4	udr	Long Term Debt Maturities Repayments Of Principal After Year Ten LongTermDebtMaturitiesRepaymentsOfPrincipalAfterYearTen	1637930000
CY2020Q4	us-gaap	Debt Instrument Carrying Amount DebtInstrumentCarryingAmount	4985218000
CY2020Q4	udr	Debt Instrument Unamortized Fair Market Value Adjustment Discount Premium Deferred Financing Cost DebtInstrumentUnamortizedFairMarketValueAdjustmentDiscountPremiumDeferredFinancingCost	8670000
CY2020Q4	us-gaap	Long Term Debt LongTermDebt	4976548000
CY2020	us-gaap	Amortization Of Financing Costs AmortizationOfFinancingCosts	4400000
CY2019	us-gaap	Amortization Of Financing Costs AmortizationOfFinancingCosts	4200000
CY2020	us-gaap	Profit Loss ProfitLoss	68970000
CY2019	us-gaap	Profit Loss ProfitLoss	199579000
CY2018	us-gaap	Profit Loss ProfitLoss	221542000
CY2020	us-gaap	Net Income Loss Attributable To Redeemable Noncontrolling Interest NetIncomeLossAttributableToRedeemableNoncontrollingInterest	4543000
CY2019	us-gaap	Net Income Loss Attributable To Redeemable Noncontrolling Interest NetIncomeLossAttributableToRedeemableNoncontrollingInterest	14426000
CY2018	us-gaap	Net Income Loss Attributable To Redeemable Noncontrolling Interest NetIncomeLossAttributableToRedeemableNoncontrollingInterest	18215000
CY2020	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	161000
CY2019	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	188000
CY2018	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	221000
CY2020	us-gaap	Net Income Loss NetIncomeLoss	64266000
CY2019	us-gaap	Net Income Loss NetIncomeLoss	184965000
CY2018	us-gaap	Net Income Loss NetIncomeLoss	203106000
CY2020	us-gaap	Dividends Preferred Stock DividendsPreferredStock	4230000
CY2019	us-gaap	Dividends Preferred Stock DividendsPreferredStock	4104000
CY2018	us-gaap	Dividends Preferred Stock DividendsPreferredStock	3868000
CY2020	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	60036000
CY2019	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	180861000
CY2018	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	199238000
CY2020	us-gaap	Weighted Average Number Of Shares Issued Basic WeightedAverageNumberOfSharesIssuedBasic	294808000
CY2019	us-gaap	Weighted Average Number Of Shares Issued Basic WeightedAverageNumberOfSharesIssuedBasic	285509000
CY2018	us-gaap	Weighted Average Number Of Shares Issued Basic WeightedAverageNumberOfSharesIssuedBasic	268513000
CY2020	us-gaap	Incremental Common Shares Attributable To Participating Nonvested Shares With Non Forfeitable Dividend Rights IncrementalCommonSharesAttributableToParticipatingNonvestedSharesWithNonForfeitableDividendRights	263000
CY2019	us-gaap	Incremental Common Shares Attributable To Participating Nonvested Shares With Non Forfeitable Dividend Rights IncrementalCommonSharesAttributableToParticipatingNonvestedSharesWithNonForfeitableDividendRights	262000
CY2018	us-gaap	Incremental Common Shares Attributable To Participating Nonvested Shares With Non Forfeitable Dividend Rights IncrementalCommonSharesAttributableToParticipatingNonvestedSharesWithNonForfeitableDividendRights	334000
CY2020	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	294545000
CY2020	us-gaap	Stock Repurchased During Period Shares StockRepurchasedDuringPeriodShares	600000
CY2020	udr	Stock Repurchase Program Weighted Average Price Per Share StockRepurchaseProgramWeightedAveragePricePerShare	33.11
CY2020	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	19800000
CY2020	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	1.44
CY2019	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	1.37
CY2018	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	1.29
CY2008	us-gaap	Stock Issued During Period Shares Dividend Reinvestment Plan StockIssuedDuringPeriodSharesDividendReinvestmentPlan	10000000.0
CY2020	udr	Shares Reserved For Issuance Under Stock Purchase Plan SharesReservedForIssuanceUnderStockPurchasePlan	11000000.0
CY2019	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	285247000
CY2018	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	268179000
CY2020	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	294927000
CY2019	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	286015000
CY2018	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	269483000
CY2020	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.20
CY2019	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.63
CY2018	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.74
CY2020	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.20
CY2019	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.63
CY2018	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.74
CY2020	us-gaap	Stock Repurchased During Period Shares StockRepurchasedDuringPeriodShares	600000
CY2020	udr	Stock Repurchase Program Weighted Average Price Per Share StockRepurchaseProgramWeightedAveragePricePerShare	33.11
CY2020	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	19800000
CY2020Q4	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	350000000.0
CY2020Q4	us-gaap	Preferred Stock Shares Authorized PreferredStockSharesAuthorized	50000000.0
CY2020	udr	Share Based Compensation Arrangement By Share Based Payment Award Number Of Unexercised Stock Options ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfUnexercisedStockOptions	0
CY2019	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	3800000
CY2018	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	700000
CY2019	udr	Increase Decrease In Income Tax Expense Benefit IncreaseDecreaseInIncomeTaxExpenseBenefit	-1300000
CY2019	udr	Income Tax On Promoted Interest IncomeTaxOnPromotedInterest	2000000.0
CY2020	udr	Minimum Holding Period Of Redeemable Units For Redemption MinimumHoldingPeriodOfRedeemableUnitsForRedemption	P1Y
CY2020	udr	Taxable Distributions Paid Per Common Share Ordinary Income TaxableDistributionsPaidPerCommonShareOrdinaryIncome	1.032
CY2019	udr	Taxable Distributions Paid Per Common Share Ordinary Income TaxableDistributionsPaidPerCommonShareOrdinaryIncome	0.981
CY2018	udr	Taxable Distributions Paid Per Common Share Ordinary Income TaxableDistributionsPaidPerCommonShareOrdinaryIncome	0.774
CY2020	udr	Taxable Distributions Paid Per Common Share Qualified Ordinary Income TaxableDistributionsPaidPerCommonShareQualifiedOrdinaryIncome	0.004
CY2019	udr	Taxable Distributions Paid Per Common Share Qualified Ordinary Income TaxableDistributionsPaidPerCommonShareQualifiedOrdinaryIncome	0.004
CY2018	udr	Taxable Distributions Paid Per Common Share Qualified Ordinary Income TaxableDistributionsPaidPerCommonShareQualifiedOrdinaryIncome	0.006
CY2020	udr	Taxable Distributions Paid Per Common Share Long Term Capital Gain TaxableDistributionsPaidPerCommonShareLongTermCapitalGain	0.298
CY2019	udr	Taxable Distributions Paid Per Common Share Long Term Capital Gain TaxableDistributionsPaidPerCommonShareLongTermCapitalGain	0.021
CY2018	udr	Taxable Distributions Paid Per Common Share Long Term Capital Gain TaxableDistributionsPaidPerCommonShareLongTermCapitalGain	0.058
CY2020	udr	Taxable Distributions Paid Per Common Share Unrecapture Section Gain TaxableDistributionsPaidPerCommonShareUnrecaptureSectionGain	0.089
CY2019	udr	Taxable Distributions Paid Per Common Share Unrecapture Section Gain TaxableDistributionsPaidPerCommonShareUnrecaptureSectionGain	0.063
CY2018	udr	Taxable Distributions Paid Per Common Share Unrecapture Section Gain TaxableDistributionsPaidPerCommonShareUnrecaptureSectionGain	0.233
CY2019	udr	Taxable Distributions Paid Per Common Share Nondividend Distributions TaxableDistributionsPaidPerCommonShareNondividendDistributions	0.281
CY2018	udr	Taxable Distributions Paid Per Common Share Nondividend Distributions TaxableDistributionsPaidPerCommonShareNondividendDistributions	0.207
CY2020	us-gaap	Common Stock Dividends Per Share Cash Paid CommonStockDividendsPerShareCashPaid	1.423
CY2019	us-gaap	Common Stock Dividends Per Share Cash Paid CommonStockDividendsPerShareCashPaid	1.350
CY2018	us-gaap	Common Stock Dividends Per Share Cash Paid CommonStockDividendsPerShareCashPaid	1.278
CY2018	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.21
CY2019	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.21
CY2020	udr	Transfer Between Levels TransferBetweenLevels	0
CY2019Q4	us-gaap	Redeemable Noncontrolling Interest Equity Carrying Amount RedeemableNoncontrollingInterestEquityCarryingAmount	1018665000
CY2018Q4	us-gaap	Redeemable Noncontrolling Interest Equity Carrying Amount RedeemableNoncontrollingInterestEquityCarryingAmount	972740000
CY2020	us-gaap	Minority Interest Change In Redemption Value MinorityInterestChangeInRedemptionValue	143741000
CY2019	us-gaap	Minority Interest Change In Redemption Value MinorityInterestChangeInRedemptionValue	-183884000
CY2020	us-gaap	Conversion Of Stock Amount Issued1 ConversionOfStockAmountIssued1	12666000
CY2019	us-gaap	Conversion Of Stock Amount Issued1 ConversionOfStockAmountIssued1	134031000
CY2020	us-gaap	Net Income Loss Attributable To Redeemable Noncontrolling Interest NetIncomeLossAttributableToRedeemableNoncontrollingInterest	4543000
CY2019	us-gaap	Net Income Loss Attributable To Redeemable Noncontrolling Interest NetIncomeLossAttributableToRedeemableNoncontrollingInterest	14426000
CY2020	us-gaap	Distributions On Mandatorily Redeemable Securities DistributionsOnMandatorilyRedeemableSecurities	34149000
CY2019	us-gaap	Distributions On Mandatorily Redeemable Securities DistributionsOnMandatorilyRedeemableSecurities	32270000
CY2020	udr	Long Term Incentive Plan Operating Partnership Unit Vesting Value LongTermIncentivePlanOperatingPartnershipUnitVestingValue	23501000
CY2019	udr	Long Term Incentive Plan Operating Partnership Unit Vesting Value LongTermIncentivePlanOperatingPartnershipUnitVestingValue	14742000
CY2020	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Noncontrolling Interest OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToNoncontrollingInterest	141000
CY2019	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Noncontrolling Interest OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToNoncontrollingInterest	-826000
CY2020Q4	us-gaap	Redeemable Noncontrolling Interest Equity Carrying Amount RedeemableNoncontrollingInterestEquityCarryingAmount	856294000
CY2019Q4	us-gaap	Redeemable Noncontrolling Interest Equity Carrying Amount RedeemableNoncontrollingInterestEquityCarryingAmount	1018665000
CY2020	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	200000
CY2019	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	200000
CY2018	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	200000
CY2020	us-gaap	Interest Expense Debt InterestExpenseDebt	202706000
CY2019	us-gaap	Interest Expense Debt InterestExpenseDebt	170917000
CY2018	us-gaap	Interest Expense Debt InterestExpenseDebt	134168000
CY2020Q4	us-gaap	Derivative Fair Value Of Derivative Asset Amount Not Offset Against Collateral DerivativeFairValueOfDerivativeAssetAmountNotOffsetAgainstCollateral	2000
CY2020Q4	us-gaap	Derivative Assets DerivativeAssets	2000
CY2020Q4	us-gaap	Derivative Fair Value Of Derivative Asset Amount Offset Against Collateral DerivativeFairValueOfDerivativeAssetAmountOffsetAgainstCollateral	2000
CY2019Q4	us-gaap	Derivative Fair Value Of Derivative Asset Amount Not Offset Against Collateral DerivativeFairValueOfDerivativeAssetAmountNotOffsetAgainstCollateral	6000
CY2019Q4	us-gaap	Derivative Assets DerivativeAssets	6000
CY2019Q4	us-gaap	Derivative Collateral Obligation To Return Securities DerivativeCollateralObligationToReturnSecurities	3000
CY2019Q4	us-gaap	Derivative Fair Value Of Derivative Asset Amount Offset Against Collateral DerivativeFairValueOfDerivativeAssetAmountOffsetAgainstCollateral	3000
CY2020Q4	us-gaap	Derivative Fair Value Of Derivative Liability Amount Not Offset Against Collateral DerivativeFairValueOfDerivativeLiabilityAmountNotOffsetAgainstCollateral	167000
CY2020Q4	us-gaap	Derivative Liabilities DerivativeLiabilities	167000
CY2020Q4	us-gaap	Derivative Fair Value Of Derivative Liability Amount Offset Against Collateral DerivativeFairValueOfDerivativeLiabilityAmountOffsetAgainstCollateral	167000
CY2019Q4	us-gaap	Derivative Fair Value Of Derivative Liability Amount Not Offset Against Collateral DerivativeFairValueOfDerivativeLiabilityAmountNotOffsetAgainstCollateral	142000
CY2019Q4	us-gaap	Derivative Liabilities DerivativeLiabilities	142000
CY2020Q4	udr	Cost Incurred To Date CostIncurredToDate	288666000
CY2020Q4	us-gaap	Purchase Commitment Remaining Minimum Amount Committed PurchaseCommitmentRemainingMinimumAmountCommitted	265789000
CY2020	us-gaap	Number Of Reportable Segments NumberOfReportableSegments	2
CY2020	udr	Community Threshold Percent Occupancy Threshold CommunityThresholdPercentOccupancyThreshold	90%
CY2020	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	5069000
CY2019	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	14055000
CY2018	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	11754000
CY2020	udr	Segment Reporting Reconciling Items Owned Property Management Costs SegmentReportingReconcilingItemsOwnedPropertyManagementCosts	35538000
CY2019	udr	Segment Reporting Reconciling Items Owned Property Management Costs SegmentReportingReconcilingItemsOwnedPropertyManagementCosts	32721000
CY2018	udr	Segment Reporting Reconciling Items Owned Property Management Costs SegmentReportingReconcilingItemsOwnedPropertyManagementCosts	28465000
CY2020	udr	Other Cost And Expense Operating Including Discontinued Operations OtherCostAndExpenseOperatingIncludingDiscontinuedOperations	22762000
CY2019	udr	Other Cost And Expense Operating Including Discontinued Operations OtherCostAndExpenseOperatingIncludingDiscontinuedOperations	13932000
CY2018	udr	Other Cost And Expense Operating Including Discontinued Operations OtherCostAndExpenseOperatingIncludingDiscontinuedOperations	12100000
CY2020	udr	Segment Reporting Reconciling Items Cost Of Services Depreciation And Amortization SegmentReportingReconcilingItemsCostOfServicesDepreciationAndAmortization	608616000
CY2019	udr	Segment Reporting Reconciling Items Cost Of Services Depreciation And Amortization SegmentReportingReconcilingItemsCostOfServicesDepreciationAndAmortization	501257000
CY2018	udr	Segment Reporting Reconciling Items Cost Of Services Depreciation And Amortization SegmentReportingReconcilingItemsCostOfServicesDepreciationAndAmortization	429006000
CY2020	udr	Other General And Administrative Expense Including Discontinued Operations OtherGeneralAndAdministrativeExpenseIncludingDiscontinuedOperations	49885000
CY2019	udr	Other General And Administrative Expense Including Discontinued Operations OtherGeneralAndAdministrativeExpenseIncludingDiscontinuedOperations	51533000
CY2018	udr	Other General And Administrative Expense Including Discontinued Operations OtherGeneralAndAdministrativeExpenseIncludingDiscontinuedOperations	46983000
CY2020	udr	Casualty Related Recoveries Charges Net CasualtyRelatedRecoveriesChargesNet	2131000
CY2019	udr	Casualty Related Recoveries Charges Net CasualtyRelatedRecoveriesChargesNet	474000
CY2018	udr	Casualty Related Recoveries Charges Net CasualtyRelatedRecoveriesChargesNet	2121000
CY2020	us-gaap	Depreciation And Amortization DepreciationAndAmortization	10013000
CY2019	us-gaap	Depreciation And Amortization DepreciationAndAmortization	6666000
CY2018	us-gaap	Depreciation And Amortization DepreciationAndAmortization	6673000
CY2020	us-gaap	Gains Losses On Sales Of Investment Real Estate GainsLossesOnSalesOfInvestmentRealEstate	119277000
CY2019	us-gaap	Gains Losses On Sales Of Investment Real Estate GainsLossesOnSalesOfInvestmentRealEstate	5282000
CY2018	us-gaap	Gains Losses On Sales Of Investment Real Estate GainsLossesOnSalesOfInvestmentRealEstate	136197000
CY2020	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	18844000
CY2019	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	137873000
CY2018	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	-5055000
CY2020	us-gaap	Interest Expense InterestExpense	202706000
CY2019	us-gaap	Interest Expense InterestExpense	170917000
CY2018	us-gaap	Interest Expense InterestExpense	134168000
CY2020	udr	Interest And Other Income Including Discontinued Operations InterestAndOtherIncomeIncludingDiscontinuedOperations	6274000
CY2019	udr	Interest And Other Income Including Discontinued Operations InterestAndOtherIncomeIncludingDiscontinuedOperations	15404000
CY2018	udr	Interest And Other Income Including Discontinued Operations InterestAndOtherIncomeIncludingDiscontinuedOperations	6735000
CY2020	udr	Income Tax Expense Benefit Of Reit Subsidiary Net Including Discontinued Operations IncomeTaxExpenseBenefitOfReitSubsidiaryNetIncludingDiscontinuedOperations	2545000
CY2019	udr	Income Tax Expense Benefit Of Reit Subsidiary Net Including Discontinued Operations IncomeTaxExpenseBenefitOfReitSubsidiaryNetIncludingDiscontinuedOperations	3838000
CY2018	udr	Income Tax Expense Benefit Of Reit Subsidiary Net Including Discontinued Operations IncomeTaxExpenseBenefitOfReitSubsidiaryNetIncludingDiscontinuedOperations	688000
CY2020	us-gaap	Net Income Loss Attributable To Redeemable Noncontrolling Interest NetIncomeLossAttributableToRedeemableNoncontrollingInterest	4543000
CY2019	us-gaap	Net Income Loss Attributable To Redeemable Noncontrolling Interest NetIncomeLossAttributableToRedeemableNoncontrollingInterest	14426000
CY2018	us-gaap	Net Income Loss Attributable To Redeemable Noncontrolling Interest NetIncomeLossAttributableToRedeemableNoncontrollingInterest	18215000
CY2020	us-gaap	Noncontrolling Interest In Net Income Loss Other Noncontrolling Interests Nonredeemable NoncontrollingInterestInNetIncomeLossOtherNoncontrollingInterestsNonredeemable	161000
CY2019	us-gaap	Noncontrolling Interest In Net Income Loss Other Noncontrolling Interests Nonredeemable NoncontrollingInterestInNetIncomeLossOtherNoncontrollingInterestsNonredeemable	188000
CY2018	us-gaap	Noncontrolling Interest In Net Income Loss Other Noncontrolling Interests Nonredeemable NoncontrollingInterestInNetIncomeLossOtherNoncontrollingInterestsNonredeemable	221000
CY2020	us-gaap	Net Income Loss NetIncomeLoss	64266000
CY2019	us-gaap	Net Income Loss NetIncomeLoss	184965000
CY2018	us-gaap	Net Income Loss NetIncomeLoss	203106000
CY2020	udr	Same Store Communities SameStoreCommunities	37607
CY2020Q4	udr	Real Estate Owned Gross RealEstateOwnedGross	13071472000
CY2019Q4	udr	Real Estate Owned Gross RealEstateOwnedGross	12602101000
CY2020Q4	udr	Real Estates Owned Accumulated Depreciation RealEstatesOwnedAccumulatedDepreciation	4605366000
CY2019Q4	udr	Real Estates Owned Accumulated Depreciation RealEstatesOwnedAccumulatedDepreciation	4131353000
CY2020Q4	us-gaap	Real Estate Investment Property Net RealEstateInvestmentPropertyNet	8466106000
CY2019Q4	us-gaap	Real Estate Investment Property Net RealEstateInvestmentPropertyNet	8470748000
CY2020Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	1409000
CY2019Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	8106000
CY2020Q4	us-gaap	Restricted Cash And Cash Equivalents RestrictedCashAndCashEquivalents	22762000
CY2019Q4	us-gaap	Restricted Cash And Cash Equivalents RestrictedCashAndCashEquivalents	25185000
CY2020Q4	us-gaap	Notes Receivable Net NotesReceivableNet	157992000
CY2019Q4	us-gaap	Notes Receivable Net NotesReceivableNet	153650000
CY2020Q4	us-gaap	Investments In Affiliates Subsidiaries Associates And Joint Ventures Fair Value Disclosure InvestmentsInAffiliatesSubsidiariesAssociatesAndJointVenturesFairValueDisclosure	600233000
CY2019Q4	us-gaap	Investments In Affiliates Subsidiaries Associates And Joint Ventures Fair Value Disclosure InvestmentsInAffiliatesSubsidiariesAssociatesAndJointVenturesFairValueDisclosure	588262000
CY2020Q4	us-gaap	Operating Lease Right Of Use Asset OperatingLeaseRightOfUseAsset	200913000
CY2019Q4	us-gaap	Operating Lease Right Of Use Asset OperatingLeaseRightOfUseAsset	204225000
CY2020Q4	us-gaap	Other Assets OtherAssets	188118000
CY2019Q4	us-gaap	Other Assets OtherAssets	186296000
CY2020Q4	us-gaap	Assets Assets	9637533000
CY2019Q4	us-gaap	Assets Assets	9636472000
CY2020	udr	Same Store Communities SameStoreCommunities	37607
CY2020	udr	Transfer Between Levels TransferBetweenLevels	0
CY2017Q4	us-gaap	Limited Partners Capital Account Units Outstanding LimitedPartnersCapitalAccountUnitsOutstanding	183351000
CY2018	udr	Long Term Incentive Plan Operating Partnership Units Vesting Shares LongTermIncentivePlanOperatingPartnershipUnitsVestingShares	286000
CY2018Q4	us-gaap	Limited Partners Capital Account Units Outstanding LimitedPartnersCapitalAccountUnitsOutstanding	183637000
CY2019	udr	Long Term Incentive Plan Operating Partnership Units Vesting Shares LongTermIncentivePlanOperatingPartnershipUnitsVestingShares	427000
CY2019Q4	us-gaap	Limited Partners Capital Account Units Outstanding LimitedPartnersCapitalAccountUnitsOutstanding	184064000
CY2020	udr	Long Term Incentive Plan Operating Partnership Units Vesting Shares LongTermIncentivePlanOperatingPartnershipUnitsVestingShares	772000
CY2020Q4	us-gaap	Limited Partners Capital Account Units Outstanding LimitedPartnersCapitalAccountUnitsOutstanding	184836000
CY2020Q4	udr	Number Of Classes Of Long Term Incentive Plan Units NumberOfClassesOfLongTermIncentivePlanUnits	2
CY2020Q4	srt	Real Estate And Accumulated Depreciation Amount Of Encumbrances RealEstateAndAccumulatedDepreciationAmountOfEncumbrances	862147000
CY2020Q4	us-gaap	Real Estate And Accumulated Depreciation Initial Cost Of Land RealEstateAndAccumulatedDepreciationInitialCostOfLand	2204834000
CY2020Q4	us-gaap	Real Estate And Accumulated Depreciation Initial Cost Of Buildings And Improvements RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements	7240537000
CY2020Q4	udr	Real Estate And Accumulated Depreciation Initial Cost Of Land And Buildings And Improvements RealEstateAndAccumulatedDepreciationInitialCostOfLandAndBuildingsAndImprovements	9445371000
CY2020Q4	us-gaap	Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Improvements RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionImprovements	3626101000
CY2020Q4	us-gaap	Real Estate And Accumulated Depreciation Carrying Amount Of Land RealEstateAndAccumulatedDepreciationCarryingAmountOfLand	2462474000
CY2020Q4	us-gaap	Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements	10608998000
CY2020Q4	us-gaap	Real Estate Gross At Carrying Value RealEstateGrossAtCarryingValue	13071472000
CY2020Q4	us-gaap	Real Estate Accumulated Depreciation RealEstateAccumulatedDepreciation	4605366000
CY2020Q4	srt	Real Estate Federal Income Tax Basis RealEstateFederalIncomeTaxBasis	12300000000
CY2019Q4	us-gaap	Real Estate Gross At Carrying Value RealEstateGrossAtCarryingValue	12602101000
CY2018Q4	us-gaap	Real Estate Gross At Carrying Value RealEstateGrossAtCarryingValue	10196159000
CY2017Q4	us-gaap	Real Estate Gross At Carrying Value RealEstateGrossAtCarryingValue	10177206000
CY2020	us-gaap	Real Estate Other Acquisitions RealEstateOtherAcquisitions	413488000
CY2019	us-gaap	Real Estate Other Acquisitions RealEstateOtherAcquisitions	2241163000
CY2020	us-gaap	Real Estate Improvements RealEstateImprovements	299986000
CY2019	us-gaap	Real Estate Improvements RealEstateImprovements	195981000
CY2018	us-gaap	Real Estate Improvements RealEstateImprovements	214898000
CY2020	us-gaap	Real Estate Cost Of Real Estate Sold RealEstateCostOfRealEstateSold	244103000
CY2019	us-gaap	Real Estate Cost Of Real Estate Sold RealEstateCostOfRealEstateSold	31202000
CY2018	us-gaap	Real Estate Cost Of Real Estate Sold RealEstateCostOfRealEstateSold	195945000
CY2020Q4	us-gaap	Real Estate Gross At Carrying Value RealEstateGrossAtCarryingValue	13071472000
CY2019Q4	us-gaap	Real Estate Gross At Carrying Value RealEstateGrossAtCarryingValue	12602101000
CY2018Q4	us-gaap	Real Estate Gross At Carrying Value RealEstateGrossAtCarryingValue	10196159000
CY2019Q4	us-gaap	Real Estate Accumulated Depreciation RealEstateAccumulatedDepreciation	4131353000
CY2018Q4	us-gaap	Real Estate Accumulated Depreciation RealEstateAccumulatedDepreciation	3654160000
CY2017Q4	us-gaap	Real Estate Accumulated Depreciation RealEstateAccumulatedDepreciation	3330166000
CY2020	us-gaap	Sec Schedule Iii Real Estate Accumulated Depreciation Depreciation Expense SECScheduleIIIRealEstateAccumulatedDepreciationDepreciationExpense	560876000
CY2019	us-gaap	Sec Schedule Iii Real Estate Accumulated Depreciation Depreciation Expense SECScheduleIIIRealEstateAccumulatedDepreciationDepreciationExpense	477193000
CY2018	us-gaap	Sec Schedule Iii Real Estate Accumulated Depreciation Depreciation Expense SECScheduleIIIRealEstateAccumulatedDepreciationDepreciationExpense	426006000
CY2020	us-gaap	Real Estate Accumulated Depreciation Real Estate Sold RealEstateAccumulatedDepreciationRealEstateSold	86863000
CY2018	us-gaap	Real Estate Accumulated Depreciation Real Estate Sold RealEstateAccumulatedDepreciationRealEstateSold	102012000
CY2020Q4	us-gaap	Real Estate Accumulated Depreciation RealEstateAccumulatedDepreciation	4605366000
CY2019Q4	us-gaap	Real Estate Accumulated Depreciation RealEstateAccumulatedDepreciation	4131353000
CY2018Q4	us-gaap	Real Estate Accumulated Depreciation RealEstateAccumulatedDepreciation	3654160000

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$UDR
UDR, Inc. Stock $udr

2019 Q4 Form 10-K Financial Statement

#000007420821000025 Filed on February 18, 2021

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$UDR UDR, Inc. Stock $udr

2019 Q4 Form 10-K Financial Statement

#000007420821000025 Filed on February 18, 2021

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$UDR
UDR, Inc. Stock $udr