Annual report pursuant to Section 13 and 15(d)

Real Estate and Intangible Assets - Portfolio Diversification (Detail)

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Real Estate and Intangible Assets - Portfolio Diversification (Detail)
$ in Thousands
 12 Months Ended
Dec. 31, 2019
USD ($)
a
farm
region
Dec. 31, 2018
USD ($)
a
farm
Real Estate Properties [Line Items]    
Number of Farms | farm 111 85
Total Acres | a 86,535 73,205
Percent of Total Acres 100.00% 100.00%
Lease Revenue $ 40,692  
Lease Revenue   $ 29,362
Percent of Total lease revenue 100.00% 100.00%
California    
Real Estate Properties [Line Items]    
Number of Farms | farm 42 33
Total Acres | a 14,830 10,147
Percent of Total Acres 17.10% 13.80%
Lease Revenue $ 21,701  
Lease Revenue   $ 13,672
Percent of Total lease revenue 53.30% 46.60%
Number of regions farms are located | region 6  
Florida    
Real Estate Properties [Line Items]    
Number of Farms | farm 23 22
Total Acres | a 20,770 17,184
Percent of Total Acres 24.00% 23.50%
Lease Revenue $ 11,115  
Lease Revenue   $ 8,133
Percent of Total lease revenue 27.30% 27.70%
Colorado    
Real Estate Properties [Line Items]    
Number of Farms | farm 10 10
Total Acres | a 31,448 31,448
Percent of Total Acres 36.30% 42.90%
Lease Revenue $ 2,857  
Lease Revenue   $ 2,743
Percent of Total lease revenue 7.00% 9.30%
Arizona    
Real Estate Properties [Line Items]    
Number of Farms | farm 6 6
Total Acres | a 6,280 6,280
Percent of Total Acres 7.30% 8.60%
Lease Revenue $ 2,219  
Lease Revenue   $ 2,045
Percent of Total lease revenue 5.50% 7.00%
Nebraska    
Real Estate Properties [Line Items]    
Number of Farms | farm 8 2
Total Acres | a 7,104 2,559
Percent of Total Acres 8.20% 3.50%
Lease Revenue $ 665  
Lease Revenue   $ 580
Percent of Total lease revenue 1.60% 2.00%
Texas    
Real Estate Properties [Line Items]    
Number of Farms | farm 1 1
Total Acres | a 3,667 3,667
Percent of Total Acres 4.20% 5.00%
Lease Revenue $ 527  
Lease Revenue   $ 60
Percent of Total lease revenue 1.30% 0.20%
Oregon    
Real Estate Properties [Line Items]    
Number of Farms | farm 3 3
Total Acres | a 418 418
Percent of Total Acres 0.50% 0.60%
Lease Revenue $ 515  
Lease Revenue   $ 893
Percent of Total lease revenue 1.30% 3.00%
Washington    
Real Estate Properties [Line Items]    
Number of Farms | farm 1 1
Total Acres | a 746 746
Percent of Total Acres 0.90% 1.10%
Lease Revenue $ 506  
Lease Revenue   $ 718
Percent of Total lease revenue 1.20% 2.40%
Michigan    
Real Estate Properties [Line Items]    
Number of Farms | farm 15 5
Total Acres | a 962 446
Percent of Total Acres 1.10% 0.60%
Lease Revenue $ 429  
Lease Revenue   $ 370
Percent of Total lease revenue 1.10% 1.30%
North Carolina    
Real Estate Properties [Line Items]    
Number of Farms | farm 2 2
Total Acres | a 310 310
Percent of Total Acres 0.40% 0.40%
Lease Revenue $ 158  
Lease Revenue   $ 148
Percent of Total lease revenue 0.40% 0.50%