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Fair Value Measurements (Schedule Of Fair Value Disclosures) (Details) (USD $)
 12 Months Ended
Dec. 31, 2014
Dec. 31, 2013
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 loss 8,000us-gaap_HeldToMaturitySecuritiesUnrecognizedHoldingLosses
/ us-gaap_FairValueByAssetClassAxis
= us-gaap_CommercialPaperNotIncludedWithCashAndCashEquivalentsMember		  
Carrying Value [Member]    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Notes receivable from real estate joint ventures and partnerships 0us-gaap_NotesReceivableFairValueDisclosure
/ us-gaap_FairValueByMeasurementBasisAxis
= us-gaap_CarryingReportedAmountFairValueDisclosureMember		 13,330,000us-gaap_NotesReceivableFairValueDisclosure
/ us-gaap_FairValueByMeasurementBasisAxis
= us-gaap_CarryingReportedAmountFairValueDisclosureMember
Carrying Value [Member] | Fixed-Rate Debt [Member]    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Debt 1,651,959,000us-gaap_DebtInstrumentFairValue
/ us-gaap_DebtInstrumentAxis
= wri_FixedRateDebtMember
/ us-gaap_FairValueByMeasurementBasisAxis
= us-gaap_CarryingReportedAmountFairValueDisclosureMember		 2,136,265,000us-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 286,229,000us-gaap_DebtInstrumentFairValue
/ us-gaap_DebtInstrumentAxis
= wri_VariableRateDebtMember
/ us-gaap_FairValueByMeasurementBasisAxis
= us-gaap_CarryingReportedAmountFairValueDisclosureMember		 163,579,000us-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 25,392,000us-gaap_HeldToMaturitySecuritiesFairValue
/ us-gaap_FairValueByAssetClassAxis
= us-gaap_USStatesAndPoliticalSubdivisionsMember
/ us-gaap_FairValueByMeasurementBasisAxis
= us-gaap_CarryingReportedAmountFairValueDisclosureMember		 [1] 25,850,000us-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 2,750,000us-gaap_HeldToMaturitySecuritiesFairValue
/ us-gaap_FairValueByAssetClassAxis
= us-gaap_CommercialPaperNotIncludedWithCashAndCashEquivalentsMember
/ us-gaap_FairValueByMeasurementBasisAxis
= us-gaap_CarryingReportedAmountFairValueDisclosureMember		 [2]  
Fair Value [Member] | Fair Value Using Significant Unobservable Inputs (Level 3) [Member]    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Notes receivable from real estate joint ventures and partnerships 0us-gaap_NotesReceivableFairValueDisclosure
/ us-gaap_FairValueByFairValueHierarchyLevelAxis
= us-gaap_FairValueInputsLevel3Member
/ us-gaap_FairValueByMeasurementBasisAxis
= us-gaap_EstimateOfFairValueFairValueDisclosureMember		 13,549,000us-gaap_NotesReceivableFairValueDisclosure
/ us-gaap_FairValueByFairValueHierarchyLevelAxis
= us-gaap_FairValueInputsLevel3Member
/ us-gaap_FairValueByMeasurementBasisAxis
= us-gaap_EstimateOfFairValueFairValueDisclosureMember
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 1,719,775,000us-gaap_DebtInstrumentFairValue
/ us-gaap_DebtInstrumentAxis
= wri_FixedRateDebtMember
/ us-gaap_FairValueByFairValueHierarchyLevelAxis
= us-gaap_FairValueInputsLevel3Member
/ us-gaap_FairValueByMeasurementBasisAxis
= us-gaap_EstimateOfFairValueFairValueDisclosureMember		 2,150,891,000us-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 292,972,000us-gaap_DebtInstrumentFairValue
/ us-gaap_DebtInstrumentAxis
= wri_VariableRateDebtMember
/ us-gaap_FairValueByFairValueHierarchyLevelAxis
= us-gaap_FairValueInputsLevel3Member
/ us-gaap_FairValueByMeasurementBasisAxis
= us-gaap_EstimateOfFairValueFairValueDisclosureMember		 172,349,000us-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 25,392,000us-gaap_HeldToMaturitySecuritiesFairValue
/ us-gaap_FairValueByAssetClassAxis
= us-gaap_USStatesAndPoliticalSubdivisionsMember
/ us-gaap_FairValueByFairValueHierarchyLevelAxis
= us-gaap_FairValueInputsLevel3Member
/ us-gaap_FairValueByMeasurementBasisAxis
= us-gaap_EstimateOfFairValueFairValueDisclosureMember		 [1] 25,850,000us-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] | Significant Other Observable Inputs (Level 2) [Member]    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Investments $ 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 December 31, 2014 and 2013, 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 loss of $8 thousand as of December 31, 2014