Quarterly report pursuant to Section 13 or 15(d)

Real Estate Acquisitions and Discontinued Operations (Narrative) (Details)

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Real Estate Acquisitions and Discontinued Operations (Narrative) (Details) (USD $)
3 Months Ended 6 Months Ended
Jun. 30, 2011
Jun. 30, 2011
WRIT's equity interest in Joint Venture 90.00% 90.00%
Percentage of residential property to be leased to achieve project stabilization   90.00%
Federal and state income tax expense $ 1,173,000 $ 1,173,000
Dulles Station, Phase I [Member]
   
Federal and state income tax expense   1,200,000
Impairment charge   600,000
650 North Glebe Road [Member]
   
Number of apartments in community 150 150
Projected real estate development cost   43,500,000
Capital contribution through debt   70.00%
Real estate partners equity interest in joint venture 10.00% 10.00%
Land and capitalized development costs $ 12,800,000 $ 12,800,000