XML 93 R49.htm IDEA: XBRL DOCUMENT
v2.4.0.6

Real Estate Investments - Acquistions (Details) (USD $) | 3 Months Ended | 12 Months Ended
--- | --- | ---
Dec. 31, 2012 | Sep. 30, 2012 | Jun. 30, 2012 | Mar. 31, 2012 | Dec. 31, 2011 | Sep. 30, 2011 | Jun. 30, 2011 | Mar. 31, 2011 | Dec. 31, 2012 | Dec. 31, 2011 note | Dec. 31, 2010
Business Acquisition [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Contract Purchase Price | $ 2,462,546,000 |  |  |  |  |  |  |  | $ 2,364,885,000 |  |  |  |  |  |  |  | $ 2,462,546,000 |  | $ 2,364,885,000 |  |  |
Real estate revenue | 77,071,000 | [1],[2] | 77,108,000 | [1],[2] | 75,590,000 | [1],[2] | 75,214,000 | [1],[2] | 75,413,000 | [1],[2] | 70,550,000 | [1],[2] | 70,321,000 | [1],[2] | 67,872,000 | [1],[2] | 304,983,000 |  | 284,156,000 |  | 253,127,000 |
Land |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 17,750,000 |  | 90,896,000 |  | 38,233,000 |
Buildings |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 26,893,000 |  | 219,613,000 |  | 93,332,000 |
Tenant origination costs | 3,100,000 |  |  |  |  |  |  |  | 15,667,000 |  |  |  |  |  |  |  | 3,100,000 |  | 15,667,000 |  | 9,094,000 |
Leasing commissions absorption costs | 4,172,000 |  |  |  |  |  |  |  | 29,719,000 |  |  |  |  |  |  |  | 4,172,000 |  | 29,719,000 |  | 15,349,000 |
Net lease intangible assets | 508,000 |  |  |  |  |  |  |  | 6,805,000 |  |  |  |  |  |  |  | 508,000 |  | 6,805,000 |  | 1,375,000 |
Net lease intangible liabilities | (173,000) |  |  |  |  |  |  |  | (2,454,000) |  |  |  |  |  |  |  | (173,000) |  | (2,454,000) |  | (1,503,000) |
Fair value of assumed mortgage | 0 |  |  |  |  |  |  |  | (78,500,000) |  |  |  |  |  |  |  | 0 |  | (78,500,000) |  | 0 |
Total property purchase price |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 52,250,000 |  | 281,746,000 |  | 155,880,000 |
Payments to Acquire Real Estate |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 52,142,000 | [3] | 281,701,000 | [3] | 155,881,000 | [3]
Number of Mortgage Notes Assumed |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 2 |  |  |
Notes Assumed |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 76,700,000 |  |  |
Credits received at settlement |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 100,000 |  | 1,300,000 |  |  |
Business Acquisition, Pro Forma Information [Abstract] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Real estate revenues |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 302,836,000 |  |  |
Loss from continuing operations |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | (3,471,000) |  |  |
Net income |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 104,311,000 |  |  |
Diluted earnings per share |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 1.57 |  |  |
Fairgate at Ballston [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Acquisition Date |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | Jun. 01, 2012 |  |  |  |  |
1140 Connecticut Avenue [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Acquisition Date |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | Jan. 01, 2011 |  |  |  |  |
1227 25th Street [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Acquisition Date |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | Mar. 01, 2011 |  |  |  |  |
Six Fifty North Glebe Road [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Acquisition Date |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | Jun. 01, 2011 | [4] |  |  |  |
Cash paid for acquisitions |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 11,800,000 |  |  |
Olney Village Center Member |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Acquisition Date |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | Aug. 01, 2011 | [5] |  |  |  |
Braddock Place Member |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Acquisition Date |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | Sep. 01, 2011 |  |  |  |  |
John Marshall II Member |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Acquisition Date |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | Sep. 01, 2011 | [5] |  |  |  |
1225 First Street [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Cash paid for acquisitions |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 13,900,000 |  |  |
Gateway Overlook [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Acquisition Date |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | Dec. 01, 2010 |  |  |  |  |
Property Acquired [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Rentable Square Feet |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 142,000 |  | 1,092,000 |  | 493,000 |
Contract Purchase Price | 52,250,000 |  |  |  |  |  |  |  | 385,400,000 |  |  |  |  |  |  |  | 52,250,000 |  | 385,400,000 |  | 156,350,000 |
Real estate revenue |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 3,358,000 |  | 20,944,000 |  | 5,575,000 |
Net income |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 325,000 |  | 484,000 |  | 1,460,000 |
Property Acquired [Member] | Fairgate at Ballston [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Acquisition Date |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | Jun. 21, 2012 |  |  |  |  |
Type |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | Office |  |  |  |  |
Rentable Square Feet |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 142,000 |  |  |  |  |
Contract Purchase Price | 52,250,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 52,250,000 |  |  |  |  |
Property Acquired [Member] | 1140 Connecticut Avenue [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Acquisition Date |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | Jan. 11, 2011 |  |  |
Type |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | Office |  |  |
Rentable Square Feet |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 188,000 |  |  |
Contract Purchase Price |  |  |  |  |  |  |  |  | 80,250,000 |  |  |  |  |  |  |  |  |  | 80,250,000 |  |  |
Property Acquired [Member] | 1227 25th Street [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Acquisition Date |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | Mar. 30, 2011 |  |  |
Type |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | Office |  |  |
Rentable Square Feet |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 132,000 |  |  |
Contract Purchase Price |  |  |  |  |  |  |  |  | 47,000,000 |  |  |  |  |  |  |  |  |  | 47,000,000 |  |  |
Property Acquired [Member] | Six Fifty North Glebe Road [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Acquisition Date |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | Jun. 15, 2011 | [6] |  |
Type |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | Mutifamily | [6] |  |
Contract Purchase Price |  |  |  |  |  |  |  |  | 11,800,000 | [6] |  |  |  |  |  |  |  |  | 11,800,000 | [6] |  |
Property Acquired [Member] | Olney Village Center Member |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Acquisition Date |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | Aug. 30, 2011 |  |  |
Type |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | Retail |  |  |
Rentable Square Feet |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 198,000 |  |  |
Contract Purchase Price |  |  |  |  |  |  |  |  | 58,000,000 |  |  |  |  |  |  |  |  |  | 58,000,000 |  |  |
Property Acquired [Member] | Braddock Place Member |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Acquisition Date |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | Sep. 13, 2011 |  |  |
Type |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | Office |  |  |
Rentable Square Feet |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 351,000 |  |  |
Contract Purchase Price |  |  |  |  |  |  |  |  | 101,000,000 |  |  |  |  |  |  |  |  |  | 101,000,000 |  |  |
Property Acquired [Member] | John Marshall II Member |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Acquisition Date |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | Sep. 15, 2011 |  |  |
Type |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | Office |  |  |
Rentable Square Feet |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 223,000 |  |  |
Contract Purchase Price |  |  |  |  |  |  |  |  | 73,500,000 |  |  |  |  |  |  |  |  |  | 73,500,000 |  |  |
Property Acquired [Member] | 1225 First Street [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Acquisition Date |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | Nov. 23, 2011 | [6] |  |
Type |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | Mutifamily | [6] |  |
Contract Purchase Price |  |  |  |  |  |  |  |  | 13,850,000 | [6] |  |  |  |  |  |  |  |  | 13,850,000 | [6] |  |
Property Acquired [Member] | 925 and 1000 Corporate Drive [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Acquisition Date |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | Jun. 03, 2010 |
Type |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | Office |
Rentable Square Feet |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 270,000 |
Contract Purchase Price |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 68,000,000 |
Property Acquired [Member] | Gateway Overlook [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Acquisition Date |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | Dec. 01, 2010 |
Type |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | Retail |
Rentable Square Feet |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 223,000 |
Contract Purchase Price |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 88,350,000 |
Tenant Origination Costs Member |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Weighted remaining average life, in months |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 65 months |  |  |  |  |
Leasing Commissions Absorption Costs Member |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Weighted remaining average life, in months |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 59 months |  |  |  |  |
Net Lease Intangible Assets Member |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Weighted remaining average life, in months |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 76 months |  |  |  |  |
Net Lease Intangible Liabilities Member |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Weighted remaining average life, in months |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 29 months |  |  |  |  |
[1] | With regard to per share calculations, the sum of the quarterly results may not equal full year results due to rounding.
[2] | The prior quarter results have been restated to conform to the current quarter presentation. Specifically, results related to properties sold or held for sale have been reclassified into discontinued operations.
[3] | See note 3 to the consolidated financial statements for the supplemental disclosure of non-cash investing and financing activities, including the assumption of mortgage debt in conjunction with some of our real estate acquisitions.
[4] | As of December 31, 2012, WRIT had under development via joint venture arrangements, a mid-rise multifamily property in Arlington, Virginia (650 North Glebe) and a high-rise multifamily property in Alexandria, Virginia (1225 First Street). The total value not yet placed into service of these development projects via joint venture arrangements at December 31, 2012 was $35.5 million.
[5] | At December 31, 2012, our properties were encumbered by non-recourse mortgage amounts as follows: $35,399,000 on 3801 Connecticut Avenue, $16,531,000 on Walker House, $29,099,000 on Bethesda Hill, $35,535,000 on The Kenmore, $29,996,000 on West Gude Drive, $96,848,000 on 2445 M Street, $53,274,000 on John Marshall II, $19,608,000 on Woodholme Medical Center, $4,337,000 on Ashburn Farm, and $22,343,000 on Olney Village Center.
[6] | Land for development

X
- Definition Weighted average amortization period of finite-lived intangible assets acquired either individually or as part of a group of assets, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 1 -Subparagraph (a)(3) -URI http://asc.fasb.org/extlink&oid=7658586&loc=d3e16265-109275 + Details
Name: | us-gaap_AcquiredFiniteLivedIntangibleAssetsWeightedAverageUsefulLife
Namespace Prefix: | us-gaap_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | us-gaap_BusinessAcquisitionLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition The pro forma diluted net income per share for a period as if the business combination or combinations had been completed at the beginning of a period. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (h)(2)-(3) -URI http://asc.fasb.org/extlink&oid=7659399&loc=d3e1392-128463 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 141 -Paragraph 54 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 141 -Paragraph 55 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 141R -Paragraph 68 -Subparagraph r(2, 3) -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. + Details
Name: | us-gaap_BusinessAcquisitionProFormaEarningsPerShareDiluted
Namespace Prefix: | us-gaap_
Data Type: | num:perShareItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | us-gaap_BusinessAcquisitionProFormaInformationAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition The pro forma income from continuing operations before changes in accounting and extraordinary items, net of tax effect, for the period as if the business combination or combinations had been completed at the beginning of a period. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (h)(2)-(3) -URI http://asc.fasb.org/extlink&oid=7659399&loc=d3e1392-128463 + Details
Name: | us-gaap_BusinessAcquisitionsProFormaIncomeLossFromContinuingOperationsBeforeChangesInAccountingAndExtraordinaryItemsNetOfTax
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition The pro forma net Income or Loss for the period as if the business combination or combinations had been completed at the beginning of a period. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (h)(2)-(3) -URI http://asc.fasb.org/extlink&oid=7659399&loc=d3e1392-128463 + Details
Name: | us-gaap_BusinessAcquisitionsProFormaNetIncomeLoss
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition The pro forma revenue for a period as if the business combination or combinations had been completed at the beginning of the period. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (h)(2)-(3) -URI http://asc.fasb.org/extlink&oid=7659399&loc=d3e1392-128463 + Details
Name: | us-gaap_BusinessAcquisitionsProFormaRevenue
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition The income earned from investments in securities and property, equipment and other capital assets. It includes rent from property and equipment, dividends from shares in corporations, and interest from bonds, loans, mortgages, derivatives, commercial paper, bank accounts, certificates of deposits, treasuries, and other financial securities. It does not include realized gains and losses on investments. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 16 -Article 12 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 225 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-04.2) -URI http://asc.fasb.org/extlink&oid=6879464&loc=d3e573970-122913 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 04 -Paragraph 2 -Article 7 + Details
Name: | us-gaap_NetInvestmentIncome
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition The fair value of notes assumed in noncash investing or financing activities. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 50 -Paragraph 5 -URI http://asc.fasb.org/extlink&oid=6367179&loc=d3e4332-108586 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 50 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=6367179&loc=d3e4313-108586 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=6367179&loc=d3e4304-108586 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 32 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. + Details
Name: | us-gaap_NotesAssumed1
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition The cash outflow for acquisition of buildings (properties) whether for investment or use. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 15 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Investing Activities -URI http://asc.fasb.org/extlink&oid=6516133 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 13 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=6943989&loc=d3e3213-108585 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 17 -Subparagraph c -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. + Details
Name: | us-gaap_PaymentsToAcquireBuildings
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition The cash outflow associated with the acquisition of a business, net of the cash acquired from the purchase. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Investing Activities -URI http://asc.fasb.org/extlink&oid=6516133 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 13 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=6943989&loc=d3e3213-108585 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 15, 17 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. + Details
Name: | us-gaap_PaymentsToAcquireBusinessesNetOfCashAcquired
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition The cash outflow for acquisition of land for use; excludes purchases of land held as inventory or as investments. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 15 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Investing Activities -URI http://asc.fasb.org/extlink&oid=6516133 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 13 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=6943989&loc=d3e3213-108585 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 17 -Subparagraph c -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. + Details
Name: | us-gaap_PaymentsToAcquireLandHeldForUse
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition The cash outflow from the acquisition of a piece of land, anything permanently fixed to it, including buildings, structures on it and so forth; includes real estate intended to generate income for the owner; excludes real estate acquired for use by the owner. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 17 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 13 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=6943989&loc=d3e3213-108585 + Details
Name: | us-gaap_PaymentsToAcquireRealEstate
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Date the property was acquired, in CCYY-MM-DD format. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 205 -SubTopic 10 -Section S99 -Paragraph 6 -Subparagraph (SX 210.5-04.(c) Schedule III) -URI http://asc.fasb.org/extlink&oid=6882300&loc=d3e5864-122674 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 04 -Paragraph c -Subparagraph Schedule III -Article 5 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 28 -Article 12 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 970 -SubTopic 360 -Section S99 -Paragraph 1 -Subparagraph (SX 210.12-28) -URI http://asc.fasb.org/extlink&oid=6590653&loc=d3e638233-123024 + Details
Name: | us-gaap_RealEstateAndAccumulatedDepreciationDateAcquired1
Namespace Prefix: | us-gaap_
Data Type: | xbrli:dateItemType
Balance Type: | na
Period Type: | duration

X
- Definition This description includes the geographical location and the type of property (unimproved land, parking garage, shopping center, garden apartment, retail outlet, multi-tenant commercial), and may include the name of the property (such as ABC Shopping Center). An amount not exceeding five percent of the total carrying amount of all real estate investments may be described as miscellaneous investments. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 970 -SubTopic 360 -Section S99 -Paragraph 1 -Subparagraph (SX 210.12-28) -URI http://asc.fasb.org/extlink&oid=6590653&loc=d3e638233-123024 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 205 -SubTopic 10 -Section S99 -Paragraph 6 -Subparagraph (SX 210.5-04.(c) Schedule III) -URI http://asc.fasb.org/extlink&oid=6882300&loc=d3e5864-122674 + Details
Name: | us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfProperty
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Amount of real estate investment property which may include the following: (1) land available-for-sale; (2) land available-for-development; (3) investments in building and building improvements; (4) tenant allowances; (5) developments in-process; (6) rental properties; and (7) other real estate investments. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03.1(d)) -URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910 + Details
Name: | us-gaap_RealEstateInvestmentPropertyAtCost
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition The aggregate revenue from real estate operations during the reporting period. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 225 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03.1(e)) -URI http://asc.fasb.org/extlink&oid=6880815&loc=d3e20235-122688 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 03 -Paragraph 1 -Article 5 + Details
Name: | us-gaap_RealEstateRevenueNet
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Noncurrent Liabilities, Long-term Debt + References No definition available. + Details
Name: | wre_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNoncurrentLiabilitiesLongTermDebt
Namespace Prefix: | wre_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Credits Received At Settlement + References No definition available. + Details
Name: | wre_CreditsReceivedAtSettlement
Namespace Prefix: | wre_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Leasing commissions absorption costs + References No definition available. + Details
Name: | wre_LeasingCommissionsAbsorptionCosts
Namespace Prefix: | wre_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Net lease intangible assets. + References No definition available. + Details
Name: | wre_NetLeaseIntangibleAssets
Namespace Prefix: | wre_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Net lease intangible liabilities. + References No definition available. + Details
Name: | wre_NetLeaseIntangibleLiabilities
Namespace Prefix: | wre_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Number of Mortgage Notes Assumed + References No definition available. + Details
Name: | wre_NumberOfMortgageNotesAssumed
Namespace Prefix: | wre_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | duration

X
- Definition Square Footage Of Real Estate Property Acquired + References No definition available. + Details
Name: | wre_SquareFootageOfRealEstatePropertyAcquired
Namespace Prefix: | wre_
Data Type: | num:areaItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tenant origination costs. + References No definition available. + Details
Name: | wre_TenantOriginationCosts
Namespace Prefix: | wre_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Total property purchase price. + References No definition available. + Details
Name: | wre_TotalPropertyPurchasePrice
Namespace Prefix: | wre_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration