Quarterly report pursuant to Section 13 or 15(d)

Real Estate and Intangible Assets - Additional Information (Detail)

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Real Estate and Intangible Assets - Additional Information (Detail)
 1 Months Ended 2 Months Ended 3 Months Ended 4 Months Ended 9 Months Ended 25 Months Ended 61 Months Ended 72 Months Ended 118 Months Ended 184 Months Ended
Sep. 30, 2015
a
well
Sep. 30, 2017
USD ($)
a
Sep. 30, 2017
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a
Sep. 30, 2016
USD ($)
a
Sep. 30, 2017
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a
Sep. 30, 2017
USD ($)
a
tenant
region
lease
transaction
farm
Sep. 30, 2016
USD ($)
a
transaction
farm
Sep. 30, 2017
USD ($)
a
Jun. 30, 2022
USD ($)
Feb. 23, 2024
USD ($)
May 31, 2027
USD ($)
Jan. 09, 2031
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Aug. 31, 2017
a
Dec. 31, 2016
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Real Estate Properties [Line Items]                            
Number of farms | farm           72 56              
Depreciation expense     $ 1,700,000 $ 1,200,000   $ 4,400,000 $ 3,200,000              
Tenant improvements, net of depreciation   $ 2,200,000 2,200,000   $ 2,200,000 2,200,000   $ 2,200,000           $ 1,800,000
Tenant improvements, depreciation and rental revenue     61,000 31,000   150,000 98,000              
Amortization expense related to intangible assets     390,000 207,000   739,000 582,000              
Amortization of acquired above market lease values and deferred revenue     4,000 2,000   7,000 5,000              
Total accretion related to below-market lease values and deferred revenue     17,000 9,000   47,000 24,000              
Rental revenue     $ 6,561,000 $ 4,467,000   $ 18,302,000 $ 12,388,000              
Number of farms acquired | farm           0 6              
Area leased (in acres) | a   61,794 61,794 33,800 61,794 61,794 33,800 61,794            
Number of tenants | tenant           49                
Percent of rental revenue (as percent)           100.00% 100.00%              
Tenant A                            
Real Estate Properties [Line Items]                            
Number of farms | farm           5                
Rental revenue           $ 3,200,000                
Percent of rental revenue (as percent)           17.70%                
Dole Food Company                            
Real Estate Properties [Line Items]                            
Number of farms | farm           2                
Rental revenue           $ 2,200,000                
Percent of rental revenue (as percent)           12.20%                
California and Florida                            
Real Estate Properties [Line Items]                            
Rental revenue           $ 2,018                
Number of extended or renewed leases | lease           10                
Number of farms with extended or renewed leases | farm           9                
Payments for Tenant Improvements           $ 2,017                
Annualized straight-line cash rent           2,200,000                
Decrease in rental income           $ 167,000                
Decrease in rental revenue (as percent)           7.00%                
California and Florida | Minimum                            
Real Estate Properties [Line Items]                            
Renewal term           1 year                
California and Florida | Maximum                            
Real Estate Properties [Line Items]                            
Renewal term           5 years                
California                            
Real Estate Properties [Line Items]                            
Number of farms | farm           27 21              
Rental revenue           $ 8,749,000 $ 6,986,000              
Area leased (in acres) | a   7,921 7,921 6,516 7,921 7,921 6,516 7,921         361  
Removal area of old grape vineyards (in acres) | a 274                          
Number of new drilling wells | well 4                          
Area of new almond trees (in acres) | a 800                          
Expended or accrued for capital improvements   $ 132,000           $ 8,400,000            
Percent of rental revenue (as percent)           47.80% 56.40%              
Number of regions farms are located | region           4                
California | Forecast                            
Real Estate Properties [Line Items]                            
Rental revenue                     $ 2,300,000 $ 5,200,000    
Florida                            
Real Estate Properties [Line Items]                            
Number of farms | farm           17 15              
Rental revenue           $ 4,839,000 $ 2,408,000              
Area leased (in acres) | a   11,225 11,225 5,567 11,225 11,225 5,567 11,225         1,910  
Expended or accrued for capital improvements   $ 0     $ 240,000                  
Percent of rental revenue (as percent)           26.50% 19.40%              
Florida | Forecast                            
Real Estate Properties [Line Items]                            
Rental revenue                 $ 280,000 $ 300,000        
Colorado                            
Real Estate Properties [Line Items]                            
Number of farms | farm           9 8              
Rental revenue           $ 2,018,000 $ 951,000              
Area leased (in acres) | a   30,170 30,170 13,575 30,170 30,170 13,575 30,170            
Percent of rental revenue (as percent)           11.00% 7.70%              
2017 New Real Estate Activity                            
Real Estate Properties [Line Items]                            
Number of farms | farm           14                
Number of transactions | transaction           7                
Rental revenue     $ 1,500,000     $ 3,000,000                
Earnings (loss) recognized     $ 341,000     $ 1,200,000                
Area leased (in acres) | a   11,202 11,202   11,202 11,202   11,202            
2016 New Real Estate Activity                            
Real Estate Properties [Line Items]                            
Number of farms | farm             13              
Number of transactions | transaction             7              
Rental revenue       $ 770,000     $ 1,500,000              
Earnings (loss) recognized       (42,000)     (196,000)              
Non-recurring acquisition-related costs       $ 128,000     $ 229,000              
Area leased (in acres) | a       16,988     16,988              
2015 New Real Estate Activity | California                            
Real Estate Properties [Line Items]                            
Area leased (in acres) | a   854 854   854 854   854