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Fair Value Measurements (Schedule Of Fair Value Disclosures) (Details) (USD $)
Mar. 31, 2015
Dec. 31, 2014
Tax Increment Revenue Bonds [Member]    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Credit loss recognized $ 31,000,000us-gaap_OtherThanTemporaryImpairmentCreditLossesRecognizedInEarningsCreditLossesOnDebtSecuritiesHeld
/ us-gaap_FairValueByAssetClassAxis
= us-gaap_USStatesAndPoliticalSubdivisionsMember		 $ 31,000,000us-gaap_OtherThanTemporaryImpairmentCreditLossesRecognizedInEarningsCreditLossesOnDebtSecuritiesHeld
/ us-gaap_FairValueByAssetClassAxis
= us-gaap_USStatesAndPoliticalSubdivisionsMember
Investments, Held To Maturity [Member]    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Gross unrealized gain (loss) 1,000wri_HeldtomaturitySecuritiesAccumulatedUnrecognizedHoldingGainLoss
/ us-gaap_FairValueByAssetClassAxis
= us-gaap_CommercialPaperNotIncludedWithCashAndCashEquivalentsMember		 (8,000)wri_HeldtomaturitySecuritiesAccumulatedUnrecognizedHoldingGainLoss
/ us-gaap_FairValueByAssetClassAxis
= us-gaap_CommercialPaperNotIncludedWithCashAndCashEquivalentsMember
Carrying Value [Member] | Fixed-Rate Debt [Member]    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Debt 1,740,075,000us-gaap_DebtInstrumentFairValue
/ us-gaap_DebtInstrumentAxis
= wri_FixedRateDebtMember
/ us-gaap_FairValueByMeasurementBasisAxis
= us-gaap_CarryingReportedAmountFairValueDisclosureMember		 1,651,959,000us-gaap_DebtInstrumentFairValue
/ us-gaap_DebtInstrumentAxis
= wri_FixedRateDebtMember
/ us-gaap_FairValueByMeasurementBasisAxis
= us-gaap_CarryingReportedAmountFairValueDisclosureMember
Carrying Value [Member] | Variable-Rate Debt [Member]    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Debt 200,822,000us-gaap_DebtInstrumentFairValue
/ us-gaap_DebtInstrumentAxis
= wri_VariableRateDebtMember
/ us-gaap_FairValueByMeasurementBasisAxis
= us-gaap_CarryingReportedAmountFairValueDisclosureMember		 286,229,000us-gaap_DebtInstrumentFairValue
/ us-gaap_DebtInstrumentAxis
= wri_VariableRateDebtMember
/ us-gaap_FairValueByMeasurementBasisAxis
= us-gaap_CarryingReportedAmountFairValueDisclosureMember
Carrying Value [Member] | Tax Increment Revenue Bonds [Member]    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Investments 25,377,000us-gaap_HeldToMaturitySecuritiesFairValue
/ us-gaap_FairValueByAssetClassAxis
= us-gaap_USStatesAndPoliticalSubdivisionsMember
/ us-gaap_FairValueByMeasurementBasisAxis
= us-gaap_CarryingReportedAmountFairValueDisclosureMember		 [1] 25,392,000us-gaap_HeldToMaturitySecuritiesFairValue
/ us-gaap_FairValueByAssetClassAxis
= us-gaap_USStatesAndPoliticalSubdivisionsMember
/ us-gaap_FairValueByMeasurementBasisAxis
= us-gaap_CarryingReportedAmountFairValueDisclosureMember		 [1]
Carrying Value [Member] | Investments, Held To Maturity [Member]    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Investments 2,500,000us-gaap_HeldToMaturitySecuritiesFairValue
/ us-gaap_FairValueByAssetClassAxis
= us-gaap_CommercialPaperNotIncludedWithCashAndCashEquivalentsMember
/ us-gaap_FairValueByMeasurementBasisAxis
= us-gaap_CarryingReportedAmountFairValueDisclosureMember		 [2] 2,750,000us-gaap_HeldToMaturitySecuritiesFairValue
/ us-gaap_FairValueByAssetClassAxis
= us-gaap_CommercialPaperNotIncludedWithCashAndCashEquivalentsMember
/ us-gaap_FairValueByMeasurementBasisAxis
= us-gaap_CarryingReportedAmountFairValueDisclosureMember		 [2]
Fair Value [Member] | Fixed-Rate Debt [Member] | Fair Value Using Significant Unobservable Inputs (Level 3) [Member]    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Debt 1,809,751,000us-gaap_DebtInstrumentFairValue
/ us-gaap_DebtInstrumentAxis
= wri_FixedRateDebtMember
/ us-gaap_FairValueByFairValueHierarchyLevelAxis
= us-gaap_FairValueInputsLevel3Member
/ us-gaap_FairValueByMeasurementBasisAxis
= us-gaap_EstimateOfFairValueFairValueDisclosureMember		 1,719,775,000us-gaap_DebtInstrumentFairValue
/ us-gaap_DebtInstrumentAxis
= wri_FixedRateDebtMember
/ us-gaap_FairValueByFairValueHierarchyLevelAxis
= us-gaap_FairValueInputsLevel3Member
/ us-gaap_FairValueByMeasurementBasisAxis
= us-gaap_EstimateOfFairValueFairValueDisclosureMember
Fair Value [Member] | Variable-Rate Debt [Member] | Fair Value Using Significant Unobservable Inputs (Level 3) [Member]    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Debt 207,191,000us-gaap_DebtInstrumentFairValue
/ us-gaap_DebtInstrumentAxis
= wri_VariableRateDebtMember
/ us-gaap_FairValueByFairValueHierarchyLevelAxis
= us-gaap_FairValueInputsLevel3Member
/ us-gaap_FairValueByMeasurementBasisAxis
= us-gaap_EstimateOfFairValueFairValueDisclosureMember		 292,972,000us-gaap_DebtInstrumentFairValue
/ us-gaap_DebtInstrumentAxis
= wri_VariableRateDebtMember
/ us-gaap_FairValueByFairValueHierarchyLevelAxis
= us-gaap_FairValueInputsLevel3Member
/ us-gaap_FairValueByMeasurementBasisAxis
= us-gaap_EstimateOfFairValueFairValueDisclosureMember
Fair Value [Member] | Tax Increment Revenue Bonds [Member] | Fair Value Using Significant Unobservable Inputs (Level 3) [Member]    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Investments 25,377,000us-gaap_HeldToMaturitySecuritiesFairValue
/ us-gaap_FairValueByAssetClassAxis
= us-gaap_USStatesAndPoliticalSubdivisionsMember
/ us-gaap_FairValueByFairValueHierarchyLevelAxis
= us-gaap_FairValueInputsLevel3Member
/ us-gaap_FairValueByMeasurementBasisAxis
= us-gaap_EstimateOfFairValueFairValueDisclosureMember		 [1] 25,392,000us-gaap_HeldToMaturitySecuritiesFairValue
/ us-gaap_FairValueByAssetClassAxis
= us-gaap_USStatesAndPoliticalSubdivisionsMember
/ us-gaap_FairValueByFairValueHierarchyLevelAxis
= us-gaap_FairValueInputsLevel3Member
/ us-gaap_FairValueByMeasurementBasisAxis
= us-gaap_EstimateOfFairValueFairValueDisclosureMember		 [1]
Fair Value [Member] | Investments, Held To Maturity [Member] | Fair Value Using Significant Other Observable Inputs (Level 2) [Member]    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Investments $ 2,501,000us-gaap_HeldToMaturitySecuritiesFairValue
/ us-gaap_FairValueByAssetClassAxis
= us-gaap_CommercialPaperNotIncludedWithCashAndCashEquivalentsMember
/ us-gaap_FairValueByFairValueHierarchyLevelAxis
= us-gaap_FairValueInputsLevel2Member
/ us-gaap_FairValueByMeasurementBasisAxis
= us-gaap_EstimateOfFairValueFairValueDisclosureMember		 [2] $ 2,742,000us-gaap_HeldToMaturitySecuritiesFairValue
/ us-gaap_FairValueByAssetClassAxis
= us-gaap_CommercialPaperNotIncludedWithCashAndCashEquivalentsMember
/ us-gaap_FairValueByFairValueHierarchyLevelAxis
= us-gaap_FairValueInputsLevel2Member
/ us-gaap_FairValueByMeasurementBasisAxis
= us-gaap_EstimateOfFairValueFairValueDisclosureMember		 [2]
[1] At March 31, 2015 and December 31, 2014, the credit loss balance on our tax increment revenue bonds was $31.0 million.
[2] Investments held to maturity are recorded at cost and have a gross unrealized gain of $1 thousand as of March 31, 2015 and an $8 thousand gross unrealized loss as of December 31, 2014.