Annual report pursuant to Section 13 and 15(d)

Concentration of Rental Revenue (Tables)

v2.4.0.6
Concentration of Rental Revenue (Tables)
 12 Months Ended
Dec. 31, 2012
Risks and Uncertainties [Abstract]  
Schedule of percentage of the entity's rental revenue
The following table summarizes the percentage of our rental revenue (which excludes tenant recoveries and other real estate operations revenue) earned from (1) individual tenants that accounted for at least 5% of our rental revenue from continuing and discontinued operations and (2) the aggregate of the five tenants from which we recognized the most rental revenue in the respective years:
 
 
For the Years Ended December 31,
 
 
2012
 
2011
 
2010
United States Government
 
18
%
 
17
%
 
16
%
Northrop Grumman Corporation (1)
 
7
%
 
8
%
 
9
%
Booz Allen Hamilton, Inc.
 
6
%
 
6
%
 
5
%
Computer Sciences Corporation
 
5
%
 
N/A

 
N/A

Five largest tenants
 
39
%
 
38
%
 
35
%

(1) Includes affiliated organizations and agencies and predecessor companies.