Quarterly report pursuant to Section 13 or 15(d)

Real Estate Acquisitions and Discontinued Operations (Properties Acquired and Land for Development During 2011) (Details)

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Real Estate Acquisitions and Discontinued Operations (Properties Acquired and Land for Development During 2011) (Details) (USD $)
In Thousands, unless otherwise specified
 6 Months Ended
Jun. 30, 2011
sqft
Rental Square feet 314,000
Contract Purchase Price $ 139,050
1140 Connecticut Avenue [Member]
  
Acquisition Date January 11, 2011
Property Type Office
Rental Square feet 184,000
Contract Purchase Price 80,250
1227 25th Street [Member]
  
Acquisition Date March 30, 2011
Property Type Office
Rental Square feet 130,000
Contract Purchase Price 47,000
650 North Glebe Road [Member]
  
Acquisition Date June 15, 2011 [1]
Property Type Multifamily [1]
Rental Square feet 37,000
Contract Purchase Price $ 11,800 [1]
[1] 650 North Glebe Road is 37,000 square feet of land acquired by a consolidated joint venture for the purpose of developing a 150 unit apartment community. WRIT is a 90% owner of the joint venture.