Quarterly report pursuant to Section 13 or 15(d)

Real Estate and Intangible Assets - Summary of Total Revenue and Earnings Recognized on Properties Acquired (Detail)

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Real Estate and Intangible Assets - Summary of Total Revenue and Earnings Recognized on Properties Acquired (Detail) (USD $)
3 Months Ended 6 Months Ended
Jun. 30, 2014
Jun. 30, 2013
Jun. 30, 2014
Jun. 30, 2013
Real Estate Properties [Line Items]        
Rental Revenue $ 1,561,291 $ 949,756 $ 3,056,927 $ 1,864,339
2014 New Real Estate Activity [Member]
       
Real Estate Properties [Line Items]        
Rental Revenue 33,800   33,800  
Earnings 17,564   17,564  
2014 New Real Estate Activity [Member] | Collins Road [Member]
       
Real Estate Properties [Line Items]        
Acquisition Date     May 30, 2014  
Rental Revenue 16,072   16,072  
Earnings 8,278   8,278  
2014 New Real Estate Activity [Member] | Spring Valley [Member]
       
Real Estate Properties [Line Items]        
Acquisition Date     Jun. 13, 2014  
Rental Revenue 13,545   13,545  
Earnings 8,335   8,335  
2014 New Real Estate Activity [Member] | McIntosh Road [Member]
       
Real Estate Properties [Line Items]        
Acquisition Date     Jun. 20, 2014  
Rental Revenue 4,183   4,183  
Earnings 951   951  
2013 New Real Estate Activity [Member]
       
Real Estate Properties [Line Items]        
Rental Revenue   36,986   36,986
Earnings   23,355   23,355
2013 New Real Estate Activity [Member] | 38th Avenue [Member]
       
Real Estate Properties [Line Items]        
Acquisition Date       Apr. 05, 2013
Rental Revenue   20,851   20,851
Earnings   11,297   11,297
2013 New Real Estate Activity [Member] | Sequoia Street [Member]
       
Real Estate Properties [Line Items]        
Acquisition Date       May 31, 2013
Rental Revenue   16,135   16,135
Earnings   $ 12,058   $ 12,058