Quarterly report pursuant to Section 13 or 15(d)

Real Estate and Intangible Assets - Summary Information of Farms Additional Information (Detail)

v3.7.0.1
Real Estate and Intangible Assets - Summary Information of Farms Additional Information (Detail) - USD ($)
3 Months Ended
Mar. 31, 2017
Mar. 31, 2016
Dec. 31, 2016
Real Estate Properties [Line Items]      
Offering costs $ 1,054,000 $ 215,000  
2016 New Real Estate Activity      
Real Estate Properties [Line Items]      
Direct leasing costs in connection with acquisitions   84,000  
2016 New Real Estate Activity | New Tenant Lease Agreement      
Real Estate Properties [Line Items]      
Direct leasing costs in connection with acquisitions   $ 4,670  
Gunbarrel Road | Alamosa, CO | 2016 New Real Estate Activity      
Real Estate Properties [Line Items]      
Units issued as partial consideration of acquisition (in shares)   745,879  
Fair value of units issued as partial consideration of acquisition   $ 6,500,000  
Offering costs   $ 25,500  
Mortgage notes and bonds payable      
Real Estate Properties [Line Items]      
Unamortized deferred financing costs $ 1,658,000   $ 1,412,000