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Summary Of Significant Accounting Policies (Narrative) (Details)
 3 Months Ended
Mar. 31, 2015
sqft
Significant Accounting Policies [Line Items]  
Date of establishment 1948
Square footage of operating properties 45,300,000us-gaap_AreaOfRealEstateProperty
Base Minimum Rental Revenue [Member] | Tenant Base [Member]  
Significant Accounting Policies [Line Items]  
Concentrations of risk 3.60%us-gaap_ConcentrationRiskPercentage1
/ us-gaap_ConcentrationRiskByBenchmarkAxis
= us-gaap_SalesRevenueServicesNetMember
/ us-gaap_ConcentrationRiskByTypeAxis
= us-gaap_CustomerConcentrationRiskMember
Net Operating Income [Member] | Houston, Texas Geographic Concentration [Member]  
Significant Accounting Policies [Line Items]  
Concentrations of risk 18.40%us-gaap_ConcentrationRiskPercentage1
/ us-gaap_ConcentrationRiskByBenchmarkAxis
= wri_NetOperatingIncomeMember
/ us-gaap_ConcentrationRiskByTypeAxis
= wri_HoustonTexasGeographicConcentrationMember
Net Operating Income [Member] | Other Parts of Texas Geographic Concentration [Member]  
Significant Accounting Policies [Line Items]  
Concentrations of risk 10.20%us-gaap_ConcentrationRiskPercentage1
/ us-gaap_ConcentrationRiskByBenchmarkAxis
= wri_NetOperatingIncomeMember
/ us-gaap_ConcentrationRiskByTypeAxis
= wri_OtherPartsOfTexasGeographicConcentrationMember