XML 30 R124.htm IDEA: XBRL DOCUMENT v2.4.1.9
Derivatives and Hedging Activity (UNITED DOMINION REALTY, L.P.) (Details 1) (USD $)
In Thousands, unless otherwise specified
Dec. 31, 2014
Dec. 31, 2013
Derivative Assets (Liabilities), at Fair Value, Net, by Balance Sheet Classification [Abstract]    
Derivative Asset Designated as Hedging Instrument, Fair Value $ 88us-gaap_DerivativeFairValueOfDerivativeAssetAmountNotOffsetAgainstCollateral $ 0us-gaap_DerivativeFairValueOfDerivativeAssetAmountNotOffsetAgainstCollateral
Derivative Liability Designated as Hedging Instrument, Fair Value 10,368us-gaap_DerivativeFairValueOfDerivativeLiabilityAmountNotOffsetAgainstCollateral 4,965us-gaap_DerivativeFairValueOfDerivativeLiabilityAmountNotOffsetAgainstCollateral
Interest rate products | Other assets | Designated as Hedging Instrument    
Derivative Assets (Liabilities), at Fair Value, Net, by Balance Sheet Classification [Abstract]    
Derivative Asset Designated as Hedging Instrument, Fair Value 86us-gaap_DerivativeFairValueOfDerivativeAssetAmountNotOffsetAgainstCollateral
/ us-gaap_BalanceSheetLocationAxis
= us-gaap_OtherAssetsMember
/ us-gaap_DerivativeInstrumentRiskAxis
= us-gaap_InterestRateContractMember
/ us-gaap_HedgingDesignationAxis
= us-gaap_DesignatedAsHedgingInstrumentMember		 0us-gaap_DerivativeFairValueOfDerivativeAssetAmountNotOffsetAgainstCollateral
/ us-gaap_BalanceSheetLocationAxis
= us-gaap_OtherAssetsMember
/ us-gaap_DerivativeInstrumentRiskAxis
= us-gaap_InterestRateContractMember
/ us-gaap_HedgingDesignationAxis
= us-gaap_DesignatedAsHedgingInstrumentMember
Interest rate products | Other assets | Not Designated as Hedging Instrument    
Derivative Assets (Liabilities), at Fair Value, Net, by Balance Sheet Classification [Abstract]    
Derivative Asset Not Designated as Hedging Instrument, Fair Value 2us-gaap_DerivativeInstrumentsNotDesignatedAsHedgingInstrumentsAssetAtFairValue
/ us-gaap_BalanceSheetLocationAxis
= us-gaap_OtherAssetsMember
/ us-gaap_DerivativeInstrumentRiskAxis
= us-gaap_InterestRateContractMember
/ us-gaap_HedgingDesignationAxis
= us-gaap_NondesignatedMember		 0us-gaap_DerivativeInstrumentsNotDesignatedAsHedgingInstrumentsAssetAtFairValue
/ us-gaap_BalanceSheetLocationAxis
= us-gaap_OtherAssetsMember
/ us-gaap_DerivativeInstrumentRiskAxis
= us-gaap_InterestRateContractMember
/ us-gaap_HedgingDesignationAxis
= us-gaap_NondesignatedMember
Interest rate products | Other liabilities | Designated as Hedging Instrument    
Derivative Assets (Liabilities), at Fair Value, Net, by Balance Sheet Classification [Abstract]    
Derivative Liability Designated as Hedging Instrument, Fair Value 10,368us-gaap_DerivativeFairValueOfDerivativeLiabilityAmountNotOffsetAgainstCollateral
/ us-gaap_BalanceSheetLocationAxis
= us-gaap_OtherLiabilitiesMember
/ us-gaap_DerivativeInstrumentRiskAxis
= us-gaap_InterestRateContractMember
/ us-gaap_HedgingDesignationAxis
= us-gaap_DesignatedAsHedgingInstrumentMember		 4,965us-gaap_DerivativeFairValueOfDerivativeLiabilityAmountNotOffsetAgainstCollateral
/ us-gaap_BalanceSheetLocationAxis
= us-gaap_OtherLiabilitiesMember
/ us-gaap_DerivativeInstrumentRiskAxis
= us-gaap_InterestRateContractMember
/ us-gaap_HedgingDesignationAxis
= us-gaap_DesignatedAsHedgingInstrumentMember
Interest rate products | Other liabilities | Not Designated as Hedging Instrument    
Derivative Assets (Liabilities), at Fair Value, Net, by Balance Sheet Classification [Abstract]    
Derivative Liability Not Designated as Hedging Instrument, Fair Value 0us-gaap_DerivativeInstrumentsNotDesignatedAsHedgingInstrumentsLiabilityAtFairValue
/ us-gaap_BalanceSheetLocationAxis
= us-gaap_OtherLiabilitiesMember
/ us-gaap_DerivativeInstrumentRiskAxis
= us-gaap_InterestRateContractMember
/ us-gaap_HedgingDesignationAxis
= us-gaap_NondesignatedMember		 0us-gaap_DerivativeInstrumentsNotDesignatedAsHedgingInstrumentsLiabilityAtFairValue
/ us-gaap_BalanceSheetLocationAxis
= us-gaap_OtherLiabilitiesMember
/ us-gaap_DerivativeInstrumentRiskAxis
= us-gaap_InterestRateContractMember
/ us-gaap_HedgingDesignationAxis
= us-gaap_NondesignatedMember
United Dominion Reality L.P.    
Derivative Assets (Liabilities), at Fair Value, Net, by Balance Sheet Classification [Abstract]    
Derivative Asset Designated as Hedging Instrument, Fair Value 39us-gaap_DerivativeFairValueOfDerivativeAssetAmountNotOffsetAgainstCollateral
/ dei_LegalEntityAxis
= udr_UnitedDominionRealityLPMember		 0us-gaap_DerivativeFairValueOfDerivativeAssetAmountNotOffsetAgainstCollateral
/ dei_LegalEntityAxis
= udr_UnitedDominionRealityLPMember
Derivative Liability Designated as Hedging Instrument, Fair Value 918us-gaap_DerivativeFairValueOfDerivativeLiabilityAmountNotOffsetAgainstCollateral
/ dei_LegalEntityAxis
= udr_UnitedDominionRealityLPMember		 2,731us-gaap_DerivativeFairValueOfDerivativeLiabilityAmountNotOffsetAgainstCollateral
/ dei_LegalEntityAxis
= udr_UnitedDominionRealityLPMember
United Dominion Reality L.P. | Interest rate products | Other assets | Designated as Hedging Instrument    
Derivative Assets (Liabilities), at Fair Value, Net, by Balance Sheet Classification [Abstract]    
Derivative Asset Designated as Hedging Instrument, Fair Value 37us-gaap_DerivativeFairValueOfDerivativeAssetAmountNotOffsetAgainstCollateral
/ us-gaap_BalanceSheetLocationAxis
= us-gaap_OtherAssetsMember
/ us-gaap_DerivativeInstrumentRiskAxis
= us-gaap_InterestRateContractMember
/ us-gaap_HedgingDesignationAxis
= us-gaap_DesignatedAsHedgingInstrumentMember
/ dei_LegalEntityAxis
= udr_UnitedDominionRealityLPMember		 0us-gaap_DerivativeFairValueOfDerivativeAssetAmountNotOffsetAgainstCollateral
/ us-gaap_BalanceSheetLocationAxis
= us-gaap_OtherAssetsMember
/ us-gaap_DerivativeInstrumentRiskAxis
= us-gaap_InterestRateContractMember
/ us-gaap_HedgingDesignationAxis
= us-gaap_DesignatedAsHedgingInstrumentMember
/ dei_LegalEntityAxis
= udr_UnitedDominionRealityLPMember
United Dominion Reality L.P. | Interest rate products | Other assets | Not Designated as Hedging Instrument    
Derivative Assets (Liabilities), at Fair Value, Net, by Balance Sheet Classification [Abstract]    
Derivative Asset Not Designated as Hedging Instrument, Fair Value 2us-gaap_DerivativeInstrumentsNotDesignatedAsHedgingInstrumentsAssetAtFairValue
/ us-gaap_BalanceSheetLocationAxis
= us-gaap_OtherAssetsMember
/ us-gaap_DerivativeInstrumentRiskAxis
= us-gaap_InterestRateContractMember
/ us-gaap_HedgingDesignationAxis
= us-gaap_NondesignatedMember
/ dei_LegalEntityAxis
= udr_UnitedDominionRealityLPMember		 0us-gaap_DerivativeInstrumentsNotDesignatedAsHedgingInstrumentsAssetAtFairValue
/ us-gaap_BalanceSheetLocationAxis
= us-gaap_OtherAssetsMember
/ us-gaap_DerivativeInstrumentRiskAxis
= us-gaap_InterestRateContractMember
/ us-gaap_HedgingDesignationAxis
= us-gaap_NondesignatedMember
/ dei_LegalEntityAxis
= udr_UnitedDominionRealityLPMember
United Dominion Reality L.P. | Interest rate products | Other liabilities | Designated as Hedging Instrument    
Derivative Assets (Liabilities), at Fair Value, Net, by Balance Sheet Classification [Abstract]    
Derivative Liability Designated as Hedging Instrument, Fair Value 918us-gaap_DerivativeFairValueOfDerivativeLiabilityAmountNotOffsetAgainstCollateral
/ us-gaap_BalanceSheetLocationAxis
= us-gaap_OtherLiabilitiesMember
/ us-gaap_DerivativeInstrumentRiskAxis
= us-gaap_InterestRateContractMember
/ us-gaap_HedgingDesignationAxis
= us-gaap_DesignatedAsHedgingInstrumentMember
/ dei_LegalEntityAxis
= udr_UnitedDominionRealityLPMember		 2,731us-gaap_DerivativeFairValueOfDerivativeLiabilityAmountNotOffsetAgainstCollateral
/ us-gaap_BalanceSheetLocationAxis
= us-gaap_OtherLiabilitiesMember
/ us-gaap_DerivativeInstrumentRiskAxis
= us-gaap_InterestRateContractMember
/ us-gaap_HedgingDesignationAxis
= us-gaap_DesignatedAsHedgingInstrumentMember
/ dei_LegalEntityAxis
= udr_UnitedDominionRealityLPMember
United Dominion Reality L.P. | Interest rate products | Other liabilities | Not Designated as Hedging Instrument    
Derivative Assets (Liabilities), at Fair Value, Net, by Balance Sheet Classification [Abstract]    
Derivative Liability Not Designated as Hedging Instrument, Fair Value $ 0us-gaap_DerivativeInstrumentsNotDesignatedAsHedgingInstrumentsLiabilityAtFairValue
/ us-gaap_BalanceSheetLocationAxis
= us-gaap_OtherLiabilitiesMember
/ us-gaap_DerivativeInstrumentRiskAxis
= us-gaap_InterestRateContractMember
/ us-gaap_HedgingDesignationAxis
= us-gaap_NondesignatedMember
/ dei_LegalEntityAxis
= udr_UnitedDominionRealityLPMember		 $ 0us-gaap_DerivativeInstrumentsNotDesignatedAsHedgingInstrumentsLiabilityAtFairValue
/ us-gaap_BalanceSheetLocationAxis
= us-gaap_OtherLiabilitiesMember
/ us-gaap_DerivativeInstrumentRiskAxis
= us-gaap_InterestRateContractMember
/ us-gaap_HedgingDesignationAxis
= us-gaap_NondesignatedMember
/ dei_LegalEntityAxis
= udr_UnitedDominionRealityLPMember