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Real Estate and Lease Intangibles - Summary of Geographic Locations of Properties (Detail) |  |  | 12 Months Ended
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Dec. 31, 2015 a Farm | Feb. 10, 2015 USD ($) | Dec. 31, 2015 USD ($) a Farm | Dec. 31, 2014 USD ($) a Farm | Dec. 31, 2013 USD ($)
Real Estate Properties [Line Items] |  |  |  |  |
Number of Farms | Farm | 43 |  | 43 | 32 |
Total Acres | a | 16,810 |  | 16,810 | 8,039 |
% of Total Acres |  |  | 100.00% | 100.00% |
Rental revenue | $ |  | $ 73,749 | $ 11,888,091 | $ 7,170,318 | $ 4,027,687
% of Total Rental Revenue |  |  | 100.00% | 100.00% |
California [Member] |  |  |  |  |
Real Estate Properties [Line Items] |  |  |  |  |
Number of Farms | Farm | 18 |  | 18 | 14 |
Total Acres | a | 3,576 |  | 3,576 | 2,391 |
% of Total Acres | 21.30% |  | 21.30% | 29.70% |
Rental revenue | $ |  |  | $ 7,754,945 | $ 4,778,579 |
% of Total Rental Revenue |  |  | 65.20% | 66.60% |
Florida [Member] |  |  |  |  |
Real Estate Properties [Line Items] |  |  |  |  |
Number of Farms | Farm | 13 |  | 13 | 9 |
Total Acres | a | 5,092 |  | 5,092 | 1,304 |
% of Total Acres | 30.30% |  | 30.30% | 16.20% |
Rental revenue | $ |  |  | $ 2,166,660 | $ 759,398 |
% of Total Rental Revenue |  |  | 18.20% | 10.60% |
Oregon [Member] |  |  |  |  |
Real Estate Properties [Line Items] |  |  |  |  |
Number of Farms | Farm |  |  | 4 | 4 |
Total Acres | a | 2,313 |  | 2,313 | 2,313 |
% of Total Acres |  |  | 13.80% | 28.80% |
Rental revenue | $ |  |  | $ 1,168,725 | $ 1,080,105 |
% of Total Rental Revenue |  |  | 9.80% | 15.10% |
Arizona [Member] |  |  |  |  |
Real Estate Properties [Line Items] |  |  |  |  |
Number of Farms | Farm |  |  | 2 | 1 |
Total Acres | a | 3,000 |  | 3,000 | 1,761 |
% of Total Acres |  |  | 17.80% | 21.90% |
Rental revenue | $ |  |  | $ 338,446 | $ 299,785 |
% of Total Rental Revenue |  |  | 2.90% | 4.20% |
Michigan [Member] |  |  |  |  |
Real Estate Properties [Line Items] |  |  |  |  |
Number of Farms | Farm |  |  | 4 | 4 |
Total Acres | a | 270 |  | 270 | 270 |
% of Total Acres |  |  | 1.60% | 3.40% |
Rental revenue | $ |  |  | $ 247,407 | $ 252,451 |
% of Total Rental Revenue |  |  | 2.10% | 3.50% |
Nebraska [Member] |  |  |  |  |
Real Estate Properties [Line Items] |  |  |  |  |
Number of Farms | Farm |  |  | 2 |  |
Total Acres | a | 2,559 |  | 2,559 |  |
% of Total Acres |  |  | 15.20% |  |
Rental revenue | $ |  |  | $ 211,908 |  |
% of Total Rental Revenue |  |  | 1.80% |  |

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