Annual report pursuant to Section 13 and 15(d)

Properties, net (Details 4)

v2.4.0.6
Properties, net (Details 4) (USD $)
In Thousands, unless otherwise specified
12 Months Ended 0 Months Ended
Dec. 31, 2012
Dec. 31, 2012
Tenant relationship value
Dec. 31, 2012
In-place lease value
Dec. 31, 2012
Above-market leases
Dec. 31, 2011
Office Property Acquisition in 2011
Jul. 11, 2012
13857 McLearen Road
sqft
Jul. 11, 2012
13857 McLearen Road
Tenant relationship value
Jul. 11, 2012
13857 McLearen Road
In-place lease value
Jul. 11, 2012
13857 McLearen Road
Above-market leases
Aug. 09, 2011
310 The Bridge Street
Aug. 09, 2011
310 The Bridge Street
Tenant relationship value
Aug. 09, 2011
310 The Bridge Street
In-place lease value
Aug. 09, 2011
310 The Bridge Street
Above-market leases
Aug. 09, 2011
310 The Bridge Street
Office Property Acquisition in 2011
sqft
Acquisitions                            
Square footage of real estate properties (in square feet)           202,000               138,000
Acquired property, percentage leased (as a percent)           100.00%               100.00%
Land, operating properties           $ 3,507       $ 261        
Building and improvements           30,177       26,577        
Intangible assets on real estate acquisitions           14,993       6,575        
Total assets           48,677                
Below market leases           (369)                
Total acquisition costs           48,308       33,413        
Intangible assets on real estate acquisitions                            
Gross carrying amount           14,993 7,472 7,109 412 6,575 3,187 2,904 484  
Weighted average amortization period of intangible assets 10 years 8 years 7 years 4 years   7 years 10 years 5 years 5 years 6 years 8 years 3 years 3 years  
Costs expensed in connection with acquisition of operating properties $ 229       $ 156