Quarterly report pursuant to Section 13 or 15(d)

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

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Real Estate and Intangible Assets - Summary Information of Farms (Detail)
$ in Thousands
 6 Months Ended
Jun. 30, 2017
USD ($)
a
option
farm
Jun. 30, 2016
USD ($)
a
option
farm
Sep. 30, 2015
a
Real Estate Properties [Line Items]      
No. of Farms | farm 65 47  
Total Acres (in acres) | a 57,930 23,456  
Farm Acres (in acres) | a 46,971    
Net Cost Basis $ 408,660    
Encumbrances/Net Long-term Debt Issued $ 273,692    
2017 New Real Estate Activity      
Real Estate Properties [Line Items]      
No. of Farms | farm 7    
Total Acres (in acres) | a 7,338    
Total Purchase Price $ 83,669    
Acquisition Costs 217    
Annualized straight-line cash rent 4,721    
Encumbrances/Net Long-term Debt Issued $ 49,001    
2016 New Real Estate Activity      
Real Estate Properties [Line Items]      
No. of Farms | farm   4  
Total Acres (in acres) | a   6,644  
Total Purchase Price   $ 41,206  
Acquisition Costs   158  
Annualized straight-line cash rent   2,365  
Encumbrances/Net Long-term Debt Issued   $ 24,813  
Citrus Boulevard | 2017 New Real Estate Activity      
Real Estate Properties [Line Items]      
Acquisition Date Jan. 12, 2017    
Spot Road(4) | 2017 New Real Estate Activity      
Real Estate Properties [Line Items]      
Acquisition Date Jun. 01, 2017    
Poplar Street | 2017 New Real Estate Activity      
Real Estate Properties [Line Items]      
Acquisition Date Jun. 02, 2017    
Gunbarrel Road | 2016 New Real Estate Activity      
Real Estate Properties [Line Items]      
Acquisition Date   Mar. 03, 2016  
Calaveras Avenue | 2016 New Real Estate Activity      
Real Estate Properties [Line Items]      
Acquisition Date   Apr. 05, 2016  
California      
Real Estate Properties [Line Items]      
No. of Farms | farm 22 19  
Total Acres (in acres) | a 6,713 4,029 854
Farm Acres (in acres) | a 6,240    
Net Cost Basis $ 182,226    
Encumbrances/Net Long-term Debt Issued $ 137,868    
Fresno, CA | Calaveras Avenue | 2016 New Real Estate Activity      
Real Estate Properties [Line Items]      
Acquisition Date   Apr. 05, 2016  
No. of Farms | farm   1  
Total Acres (in acres) | a   453  
Lease Term   10 years  
Renewal Options, Number of Renewal Options | option   1  
Renewal Options, Lease Term   5 years  
Total Purchase Price   $ 15,470  
Acquisition Costs   39  
Annualized straight-line cash rent   774  
Encumbrances/Net Long-term Debt Issued   $ 9,282  
Florida      
Real Estate Properties [Line Items]      
No. of Farms | farm 16 13  
Total Acres (in acres) | a 9,315 5,094  
Farm Acres (in acres) | a 7,664    
Net Cost Basis $ 107,960    
Encumbrances/Net Long-term Debt Issued $ 64,800    
Martin, FL | Citrus Boulevard | 2017 New Real Estate Activity      
Real Estate Properties [Line Items]      
Acquisition Date Jan. 12, 2017    
No. of Farms | farm 1    
Total Acres (in acres) | a 3,748    
Lease Term 7 years    
Renewal Options, Number of Renewal Options | option 3    
Renewal Options, Lease Term 5 years    
Total Purchase Price $ 54,000    
Acquisition Costs 80    
Annualized straight-line cash rent 2,926    
Encumbrances/Net Long-term Debt Issued $ 32,400    
Colorado      
Real Estate Properties [Line Items]      
No. of Farms | farm 9 3  
Total Acres (in acres) | a 30,170 6,191  
Farm Acres (in acres) | a 23,257    
Net Cost Basis $ 42,140    
Encumbrances/Net Long-term Debt Issued $ 25,227    
Saguache, CO | Gunbarrel Road | 2016 New Real Estate Activity      
Real Estate Properties [Line Items]      
Acquisition Date   Mar. 03, 2016  
No. of Farms | farm   3  
Total Acres (in acres) | a   6,191  
Lease Term   5 years  
Renewal Options, Number of Renewal Options | option   1  
Renewal Options, Lease Term   5 years  
Total Purchase Price   $ 25,736  
Acquisition Costs   119  
Annualized straight-line cash rent   1,591  
Encumbrances/Net Long-term Debt Issued   $ 15,531  
Arizona      
Real Estate Properties [Line Items]      
No. of Farms | farm 6 2  
Total Acres (in acres) | a 6,280 3,000  
Farm Acres (in acres) | a 5,228    
Net Cost Basis $ 40,748    
Encumbrances/Net Long-term Debt Issued $ 23,314    
Yuma, AZ | Spot Road(4) | 2017 New Real Estate Activity      
Real Estate Properties [Line Items]      
Acquisition Date Jun. 01, 2017    
No. of Farms | farm 4    
Total Acres (in acres) | a 3,280    
Total Purchase Price $ 27,500    
Acquisition Costs 88    
Annualized straight-line cash rent 1,673    
Encumbrances/Net Long-term Debt Issued $ 15,300    
Yuma, AZ | Spot Road(4) | 2017 New Real Estate Activity | Weighted average      
Real Estate Properties [Line Items]      
Lease Term 8 years 2 months 15 days    
Yuma, AZ | Spot Road Property 1 | 2017 New Real Estate Activity      
Real Estate Properties [Line Items]      
Renewal Options, Number of Renewal Options | option 1    
Renewal Options, Lease Term 10 years    
Yuma, AZ | Spot Road Property 2 | 2017 New Real Estate Activity      
Real Estate Properties [Line Items]      
Renewal Options, Number of Renewal Options | option 1    
Renewal Options, Lease Term 2 years    
Oregon      
Real Estate Properties [Line Items]      
No. of Farms | farm 4 4  
Total Acres (in acres) | a 2,313 2,313  
Farm Acres (in acres) | a 2,003    
Net Cost Basis $ 19,568    
Encumbrances/Net Long-term Debt Issued $ 12,927    
Nebraska      
Real Estate Properties [Line Items]      
No. of Farms | farm 2 2  
Total Acres (in acres) | a 2,559 2,559  
Farm Acres (in acres) | a 2,101    
Net Cost Basis $ 10,708    
Encumbrances/Net Long-term Debt Issued $ 6,602    
Michigan      
Real Estate Properties [Line Items]      
No. of Farms | farm 4 4  
Total Acres (in acres) | a 270 270  
Farm Acres (in acres) | a 183    
Net Cost Basis $ 2,993    
Encumbrances/Net Long-term Debt Issued $ 1,653    
North Carolina      
Real Estate Properties [Line Items]      
No. of Farms | farm 2 0  
Total Acres (in acres) | a 310 0  
Farm Acres (in acres) | a 295    
Net Cost Basis $ 2,317    
Encumbrances/Net Long-term Debt Issued $ 1,301    
Bladen, NC | Poplar Street | 2017 New Real Estate Activity      
Real Estate Properties [Line Items]      
Acquisition Date Jun. 02, 2017    
No. of Farms | farm 2    
Total Acres (in acres) | a 310    
Renewal Options, Number of Renewal Options | option 1    
Renewal Options, Lease Term 5 years    
Total Purchase Price $ 2,169    
Acquisition Costs 49    
Annualized straight-line cash rent 122    
Encumbrances/Net Long-term Debt Issued $ 1,301    
Bladen, NC | Poplar Street | 2017 New Real Estate Activity | Weighted average      
Real Estate Properties [Line Items]      
Lease Term 9 years 6 months 29 days