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Real Estate and Intangible Assets - Summary Information of Farms (Detail) $ in Thousands | 6 Months Ended |  |  |
--- | --- | --- | --- | ---
Jun. 30, 2018 USD ($) a farm | Jun. 30, 2017 USD ($) a farm | Jun. 07, 2018 a | Dec. 31, 2017 USD ($) | Oct. 17, 2017 a
Real Estate Properties [Line Items] |  |  |  |  |
No. of Farms | farm | 75 | 65 |  |  |
Total Acres | a | 63,325 | 57,930 |  |  |
Farm Acres | a | 51,135 |  |  |  |
Net Cost Basis | $ | $ 465,282 |  |  |  |
Encumbrances | $ | $ 295,444 |  |  |  |
California |  |  |  |  |
Real Estate Properties [Line Items] |  |  |  |  |
No. of Farms | farm | 29 | 22 |  |  |
Total Acres | a | 8,241 | 6,713 |  |  |
Farm Acres | a | 7,465 |  |  |  | 169
Net Cost Basis | $ | $ 211,344 |  |  |  |
Encumbrances | $ | $ 147,559 |  |  |  |
Florida |  |  |  |  |
Real Estate Properties [Line Items] |  |  |  |  |
No. of Farms | farm | 16 | 16 |  |  |
Total Acres | a | 10,980 | 9,315 | 26 |  |
Farm Acres | a | 8,822 |  |  |  |
Net Cost Basis | $ | $ 115,376 |  |  |  |
Encumbrances | $ | $ 72,782 |  |  |  |
Arizona |  |  |  |  |
Real Estate Properties [Line Items] |  |  |  |  |
No. of Farms | farm | 6 | 6 |  |  |
Total Acres | a | 6,280 | 6,280 |  |  |
Farm Acres | a | 5,228 |  |  |  |
Net Cost Basis | $ | $ 49,956 |  |  |  |
Encumbrances | $ | $ 22,677 |  |  |  |
Colorado |  |  |  |  |
Real Estate Properties [Line Items] |  |  |  |  |
No. of Farms | farm | 10 | 9 |  |  |
Total Acres | a | 31,450 | 30,170 |  |  |
Farm Acres | a | 24,513 |  |  |  |
Net Cost Basis | $ | $ 41,752 |  |  |  |
Encumbrances | $ | $ 24,509 |  |  |  |
Oregon |  |  |  |  |
Real Estate Properties [Line Items] |  |  |  |  |
No. of Farms | farm | 4 | 4 |  |  |
Total Acres | a | 2,313 | 2,313 |  |  |
Farm Acres | a | 2,003 |  |  |  |
Net Cost Basis | $ | $ 19,863 |  |  |  |
Encumbrances | $ | $ 11,934 |  |  |  |
Nebraska |  |  |  |  |
Real Estate Properties [Line Items] |  |  |  |  |
No. of Farms | farm | 2 | 2 |  |  |
Total Acres | a | 2,559 | 2,559 |  |  |
Farm Acres | a | 2,101 |  |  |  |
Net Cost Basis | $ | $ 10,545 |  |  |  |
Encumbrances | $ | $ 6,602 |  |  |  |
Washington |  |  |  |  |
Real Estate Properties [Line Items] |  |  |  |  |
No. of Farms | farm | 1 | 0 |  |  |
Total Acres | a | 746 | 0 |  |  |
Farm Acres | a | 417 |  |  |  |
Net Cost Basis | $ | $ 9,115 |  |  |  |
Encumbrances | $ | $ 5,325 |  |  |  |
Michigan |  |  |  |  |
Real Estate Properties [Line Items] |  |  |  |  |
No. of Farms | farm | 5 | 4 |  |  |
Total Acres | a | 446 | 270 |  |  |
Farm Acres | a | 291 |  |  |  |
Net Cost Basis | $ | $ 4,989 |  |  |  |
Encumbrances | $ | $ 2,786 |  |  |  |
North Carolina |  |  |  |  |
Real Estate Properties [Line Items] |  |  |  |  |
No. of Farms | farm | 2 | 2 |  |  |
Total Acres | a | 310 | 310 |  |  |
Farm Acres | a | 295 |  |  |  |
Net Cost Basis | $ | $ 2,342 |  |  |  |
Encumbrances | $ | $ 1,270 |  |  |  |
2017 New Real Estate Activity |  |  |  |  |
Real Estate Properties [Line Items] |  |  |  |  |
No. of Farms | farm |  | 7 |  |  |
Total Acres | a |  | 7,338 |  |  |
Encumbrances | $ |  | $ 49,001 |  |  |
State of Arizona | Arizona |  |  |  |  |
Real Estate Properties [Line Items] |  |  |  |  |
Farm Acres | a | 1,221 |  |  |  |
Net Cost Basis | $ | $ 2,900 |  |  |  |
State of Arizona | 2017 New Real Estate Activity | Yuma, AZ |  |  |  |  |
Real Estate Properties [Line Items] |  |  |  |  |
No. of Farms | farm |  | 2 |  |  |
Total Acres | a |  | 1,368 |  |  |
Mortgage notes and bonds payable |  |  |  |  |
Real Estate Properties [Line Items] |  |  |  |  |
Deferred financing costs | $ | $ 2,020 |  |  | $ 1,986 |

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