Annual report pursuant to Section 13 and 15(d)

Real Estate and Intangible Assets - Summary of Properties Acquired (Parenthetical) (Detail)

v3.3.1.900
Real Estate and Intangible Assets - Summary of Properties Acquired (Parenthetical) (Detail)
$ in Thousands
 1 Months Ended 12 Months Ended
Dec. 23, 2014
Lease
Buildings
Jul. 31, 2004
USD ($)
Dec. 31, 2015
USD ($)
ft²
Lease
Tenants
Dec. 31, 2014
USD ($)
ft²
Lease
Oct. 02, 2015
ft²
Aug. 28, 2015
ft²
Nov. 30, 2014
USD ($)
Jul. 25, 2014
ft²
Business Acquisition [Line Items]                
Lease expiration year     2016-11          
Lease renewal terms description     The other tenants in the building have varying lease expirations from December 2015 to October 2018. No other tenants have renewal options.          
Area of property occupied by largest tenant | ft²     520,053 2,496,634,000 1,427     81,371
Total Purchase Price       $ 140,011        
Total investment in property     $ 780,377 $ 722,565        
Atlanta, GA [Member]                
Business Acquisition [Line Items]                
Number of tenant | Tenants     1          
Number of leases | Lease     2          
Percentage of building occupied by tenant     100.00%          
Area of property occupied by largest tenant | ft²     78,151          
Indianapolis, Indiana Property [Member]                
Business Acquisition [Line Items]                
Area of property occupied by largest tenant | ft²     61,306 86,495,000   4,512    
Total Purchase Price       $ 10,500        
Canton, North Carolina [Member]                
Business Acquisition [Line Items]                
Area of property occupied by largest tenant | ft²       365,960,000        
Total Purchase Price   $ 5,200   $ 5,550        
Total investment in property             $ 10,800  
Monroe, MI [Member]                
Business Acquisition [Line Items]                
Area of property occupied by largest tenant | ft²       535,500,000        
Total Purchase Price       $ 30,750        
Number of buildings acquired | Buildings 2              
Number of leases acquired | Lease 2     2        
Lease Two [Member] | Atlanta, GA [Member]                
Business Acquisition [Line Items]                
Percentage of building occupied by tenant     30.00%          
Lease expiration period     15 years          
Lease One [Member] | Atlanta, GA [Member]                
Business Acquisition [Line Items]                
Percentage of building occupied by tenant     70.00%          
Lease expiration period     7 years