Quarterly report pursuant to Section 13 or 15(d)

Real Estate - Redevelopment (Details)

v2.4.1.9
Real Estate - Redevelopment (Details) (USD $)
In Thousands, unless otherwise specified
Mar. 31, 2015
Dec. 31, 2014
Real Estate Properties [Line Items]    
Development in Process $ 65,656us-gaap_DevelopmentInProcess $ 76,235us-gaap_DevelopmentInProcess
7900 Westpark Drive [Member]    
Real Estate Properties [Line Items]    
Development in Process $ 35,100us-gaap_DevelopmentInProcess
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= wre_A7900WestparkDriveMember
$ 27,900us-gaap_DevelopmentInProcess
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= wre_A7900WestparkDriveMember