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Real Estate and Intangible Assets - Portfolio Diversification (Detail) $ in Thousands | 12 Months Ended
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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%

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