Quarterly report pursuant to Section 13 or 15(d)

Real Estate and Intangible Assets - Summary of Geographic Locations of Properties (Detail)

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Real Estate and Intangible Assets - Summary of Geographic Locations of Properties (Detail)
$ in Thousands
3 Months Ended 6 Months Ended
Jun. 30, 2018
USD ($)
a
Jun. 30, 2017
USD ($)
a
Jun. 30, 2018
USD ($)
a
farm
Jun. 30, 2017
USD ($)
a
farm
Jun. 07, 2018
a
Real Estate Properties [Line Items]          
No. of Farms | farm     75 65  
Total Acres | a 63,325 57,930 63,325 57,930  
% of Total Acres     100.00% 100.00%  
Rental Revenue | $ $ 6,632 $ 5,994 $ 13,320 $ 11,742  
% of Total Rental Revenue     100.00% 100.00%  
California          
Real Estate Properties [Line Items]          
No. of Farms | farm     29 22  
Total Acres | a 8,241 6,713 8,241 6,713  
% of Total Acres     13.00% 11.60%  
Rental Revenue | $     $ 6,061 $ 5,728  
% of Total Rental Revenue     45.50% 48.80%  
Florida          
Real Estate Properties [Line Items]          
No. of Farms | farm     16 16  
Total Acres | a 10,980 9,315 10,980 9,315 26
% of Total Acres     17.30% 16.10%  
Rental Revenue | $     $ 3,530 $ 3,143  
% of Total Rental Revenue     26.50% 26.80%  
Colorado          
Real Estate Properties [Line Items]          
No. of Farms | farm     10 9  
Total Acres | a 31,450 30,170 31,450 30,170  
% of Total Acres     49.70% 52.10%  
Rental Revenue | $     $ 1,372 $ 1,345  
% of Total Rental Revenue     10.30% 11.40%  
Arizona          
Real Estate Properties [Line Items]          
No. of Farms | farm     6 6  
Total Acres | a 6,280 6,280 6,280 6,280  
% of Total Acres     9.90% 10.80%  
Rental Revenue | $     $ 955 $ 512  
% of Total Rental Revenue     7.20% 4.30%  
Oregon          
Real Estate Properties [Line Items]          
No. of Farms | farm     4 4  
Total Acres | a 2,313 2,313 2,313 2,313  
% of Total Acres     3.70% 4.00%  
Rental Revenue | $     $ 618 $ 589  
% of Total Rental Revenue     4.60% 5.00%  
Nebraska          
Real Estate Properties [Line Items]          
No. of Farms | farm     2 2  
Total Acres | a 2,559 2,559 2,559 2,559  
% of Total Acres     4.00% 4.40%  
Rental Revenue | $     $ 290 $ 290  
% of Total Rental Revenue     2.20% 2.50%  
Washington          
Real Estate Properties [Line Items]          
No. of Farms | farm     1 0  
Total Acres | a 746 0 746 0  
% of Total Acres     1.20% 0.00%  
Rental Revenue | $     $ 242 $ 0  
% of Total Rental Revenue     1.80% 0.00%  
Michigan          
Real Estate Properties [Line Items]          
No. of Farms | farm     5 4  
Total Acres | a 446 270 446 270  
% of Total Acres     0.70% 0.50%  
Rental Revenue | $     $ 170 $ 125  
% of Total Rental Revenue     1.30% 1.10%  
North Carolina          
Real Estate Properties [Line Items]          
No. of Farms | farm     2 2  
Total Acres | a 310 310 310 310  
% of Total Acres     0.50% 0.50%  
Rental Revenue | $     $ 82 $ 10  
% of Total Rental Revenue     0.60% 0.10%