Quarterly report pursuant to Section 13 or 15(d)

Properties, net (Details 3)

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Properties, net (Details 3)
3 Months Ended
Mar. 31, 2013
Property
sqft
Newly constructed properties placed in service
 
Construction and Redevelopment Activities  
Square Feet of Properties Placed in Service 236,000
Number of Real Estate Properties Placed In Service 3
Properties under construction or contractually committed for construction
 
Construction and Redevelopment Activities  
Number of real estate properties 9
Square footage of real estate properties (in square feet) 1,100,000
Properties under construction or contractually committed for construction | Baltimore and Washington Corridor
 
Construction and Redevelopment Activities  
Number of real estate properties 3
Properties under construction or contractually committed for construction | Northern Virginia
 
Construction and Redevelopment Activities  
Number of real estate properties 3
Properties under construction or contractually committed for construction | Huntsville
 
Construction and Redevelopment Activities  
Number of real estate properties 3
Properties under redevelopment | Greater Philadelphia
 
Construction and Redevelopment Activities  
Number of real estate properties 1
Square footage of real estate properties (in square feet) 183,000