Annual report pursuant to Section 13 and 15(d)

Fair Value Disclosures (Financial Assets And Liabilities Measured At Fair Value) (Details)

v2.4.1.9
Fair Value Disclosures (Financial Assets And Liabilities Measured At Fair Value) (Details) (USD $)
In Thousands, unless otherwise specified
12 Months Ended
Dec. 31, 2014
Dec. 31, 2013
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Assets: SERP $ 2,778wre_FairValueAssetsMeasuredOnRecurringBasisSupplementalExecutiveRetirementProgram $ 3,290wre_FairValueAssetsMeasuredOnRecurringBasisSupplementalExecutiveRetirementProgram
Cash and Cash Equivalents and Restricted Cash Maturity Period 90 days  
Level 1 [Member]    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Assets: SERP 0wre_FairValueAssetsMeasuredOnRecurringBasisSupplementalExecutiveRetirementProgram
/ us-gaap_FairValueByFairValueHierarchyLevelAxis
= us-gaap_FairValueInputsLevel1Member
0wre_FairValueAssetsMeasuredOnRecurringBasisSupplementalExecutiveRetirementProgram
/ us-gaap_FairValueByFairValueHierarchyLevelAxis
= us-gaap_FairValueInputsLevel1Member
Level 2 [Member]    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Assets: SERP 2,778wre_FairValueAssetsMeasuredOnRecurringBasisSupplementalExecutiveRetirementProgram
/ us-gaap_FairValueByFairValueHierarchyLevelAxis
= us-gaap_FairValueInputsLevel2Member
3,290wre_FairValueAssetsMeasuredOnRecurringBasisSupplementalExecutiveRetirementProgram
/ us-gaap_FairValueByFairValueHierarchyLevelAxis
= us-gaap_FairValueInputsLevel2Member
Level 3 [Member]    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Assets: SERP $ 0wre_FairValueAssetsMeasuredOnRecurringBasisSupplementalExecutiveRetirementProgram
/ us-gaap_FairValueByFairValueHierarchyLevelAxis
= us-gaap_FairValueInputsLevel3Member
$ 0wre_FairValueAssetsMeasuredOnRecurringBasisSupplementalExecutiveRetirementProgram
/ us-gaap_FairValueByFairValueHierarchyLevelAxis
= us-gaap_FairValueInputsLevel3Member