Accounting Policies Fair value of in place leases (Details) (USD $)
In Thousands, unless otherwise specified |
Dec. 31, 2014
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Dec. 31, 2013
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Tenant Origination Costs Member | ||
Acquired Finite-Lived Intangible Assets [Line Items] | ||
Finite-Lived Intangible Assets, Gross |
$ 56,327us-gaap_FiniteLivedIntangibleAssetsGross / wre_ComponentsOfFairValueOfInPlaceLeasesAxis = wre_TenantOriginationCostsMember |
$ 47,697us-gaap_FiniteLivedIntangibleAssetsGross / wre_ComponentsOfFairValueOfInPlaceLeasesAxis = wre_TenantOriginationCostsMember |
Finite-Lived Intangible Assets, Accumulated Amortization |
35,463us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization / wre_ComponentsOfFairValueOfInPlaceLeasesAxis = wre_TenantOriginationCostsMember |
29,653us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization / wre_ComponentsOfFairValueOfInPlaceLeasesAxis = wre_TenantOriginationCostsMember |
Finite-Lived Intangible Assets, Net |
20,864us-gaap_FiniteLivedIntangibleAssetsNet / wre_ComponentsOfFairValueOfInPlaceLeasesAxis = wre_TenantOriginationCostsMember |
18,044us-gaap_FiniteLivedIntangibleAssetsNet / wre_ComponentsOfFairValueOfInPlaceLeasesAxis = wre_TenantOriginationCostsMember |
Leasing Commissions Absorption Costs Member | ||
Acquired Finite-Lived Intangible Assets [Line Items] | ||
Finite-Lived Intangible Assets, Gross |
93,729us-gaap_FiniteLivedIntangibleAssetsGross / wre_ComponentsOfFairValueOfInPlaceLeasesAxis = wre_LeasingCommissionsAbsorptionCostsMember |
78,629us-gaap_FiniteLivedIntangibleAssetsGross / wre_ComponentsOfFairValueOfInPlaceLeasesAxis = wre_LeasingCommissionsAbsorptionCostsMember |
Finite-Lived Intangible Assets, Accumulated Amortization |
60,289us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization / wre_ComponentsOfFairValueOfInPlaceLeasesAxis = wre_LeasingCommissionsAbsorptionCostsMember |
48,376us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization / wre_ComponentsOfFairValueOfInPlaceLeasesAxis = wre_LeasingCommissionsAbsorptionCostsMember |
Finite-Lived Intangible Assets, Net |
33,440us-gaap_FiniteLivedIntangibleAssetsNet / wre_ComponentsOfFairValueOfInPlaceLeasesAxis = wre_LeasingCommissionsAbsorptionCostsMember |
30,253us-gaap_FiniteLivedIntangibleAssetsNet / wre_ComponentsOfFairValueOfInPlaceLeasesAxis = wre_LeasingCommissionsAbsorptionCostsMember |
Net Lease Intangible Assets Member | ||
Acquired Finite-Lived Intangible Assets [Line Items] | ||
Finite-Lived Intangible Assets, Gross |
19,724us-gaap_FiniteLivedIntangibleAssetsGross / wre_ComponentsOfFairValueOfInPlaceLeasesAxis = wre_NetLeaseIntangibleAssetsMember |
12,495us-gaap_FiniteLivedIntangibleAssetsGross / wre_ComponentsOfFairValueOfInPlaceLeasesAxis = wre_NetLeaseIntangibleAssetsMember |
Finite-Lived Intangible Assets, Accumulated Amortization |
9,495us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization / wre_ComponentsOfFairValueOfInPlaceLeasesAxis = wre_NetLeaseIntangibleAssetsMember |
7,008us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization / wre_ComponentsOfFairValueOfInPlaceLeasesAxis = wre_NetLeaseIntangibleAssetsMember |
Finite-Lived Intangible Assets, Net |
10,229us-gaap_FiniteLivedIntangibleAssetsNet / wre_ComponentsOfFairValueOfInPlaceLeasesAxis = wre_NetLeaseIntangibleAssetsMember |
5,487us-gaap_FiniteLivedIntangibleAssetsNet / wre_ComponentsOfFairValueOfInPlaceLeasesAxis = wre_NetLeaseIntangibleAssetsMember |
Net Lease Intangible Liabilities Member | ||
Acquired Finite-Lived Intangible Assets [Line Items] | ||
Finite-lived Intangible Liabilities, Net Lease, Gross |
34,027wre_FiniteLivedIntangibleLiabilitiesNetLeaseGross / wre_ComponentsOfFairValueOfInPlaceLeasesAxis = wre_NetLeaseIntangibleLiabilitiesMember |
26,348wre_FiniteLivedIntangibleLiabilitiesNetLeaseGross / wre_ComponentsOfFairValueOfInPlaceLeasesAxis = wre_NetLeaseIntangibleLiabilitiesMember |
Finite-lived Intangible Liabilities, Net Lease, Accumulated Amortization |
20,974wre_FiniteLivedIntangibleLiabilitiesNetLeaseAccumulatedAmortization / wre_ComponentsOfFairValueOfInPlaceLeasesAxis = wre_NetLeaseIntangibleLiabilitiesMember |
19,403wre_FiniteLivedIntangibleLiabilitiesNetLeaseAccumulatedAmortization / wre_ComponentsOfFairValueOfInPlaceLeasesAxis = wre_NetLeaseIntangibleLiabilitiesMember |
Finite-lived Intangible Liabilities, Net Lease, Net |
13,053wre_FiniteLivedIntangibleLiabilitiesNetLeaseNet / wre_ComponentsOfFairValueOfInPlaceLeasesAxis = wre_NetLeaseIntangibleLiabilitiesMember |
6,945wre_FiniteLivedIntangibleLiabilitiesNetLeaseNet / wre_ComponentsOfFairValueOfInPlaceLeasesAxis = wre_NetLeaseIntangibleLiabilitiesMember |
Leases, Acquired-in-Place, Below-Market Ground Lease [Member] | ||
Acquired Finite-Lived Intangible Assets [Line Items] | ||
Finite-Lived Intangible Assets, Gross |
12,080us-gaap_FiniteLivedIntangibleAssetsGross / wre_ComponentsOfFairValueOfInPlaceLeasesAxis = wre_LeasesAcquiredInPlaceBelowMarketGroundLeaseMember |
12,080us-gaap_FiniteLivedIntangibleAssetsGross / wre_ComponentsOfFairValueOfInPlaceLeasesAxis = wre_LeasesAcquiredInPlaceBelowMarketGroundLeaseMember |
Finite-Lived Intangible Assets, Accumulated Amortization |
1,335us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization / wre_ComponentsOfFairValueOfInPlaceLeasesAxis = wre_LeasesAcquiredInPlaceBelowMarketGroundLeaseMember |
1,145us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization / wre_ComponentsOfFairValueOfInPlaceLeasesAxis = wre_LeasesAcquiredInPlaceBelowMarketGroundLeaseMember |
Finite-Lived Intangible Assets, Net |
$ 10,745us-gaap_FiniteLivedIntangibleAssetsNet / wre_ComponentsOfFairValueOfInPlaceLeasesAxis = wre_LeasesAcquiredInPlaceBelowMarketGroundLeaseMember |
$ 10,935us-gaap_FiniteLivedIntangibleAssetsNet / wre_ComponentsOfFairValueOfInPlaceLeasesAxis = wre_LeasesAcquiredInPlaceBelowMarketGroundLeaseMember |
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Accumulated amount of amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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Amount before amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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Amount after amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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Finite-lived Intangible Liabilities, Net Lease, Accumulated Amortization No definition available.
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Finite-lived Intangible Liabilities, Net Lease, Net No definition available.
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