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Real Estate and Intangible Assets - Summary Information of Farms (Detail) $ in Thousands | 12 Months Ended
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Dec. 31, 2019 USD ($) a farm | Dec. 31, 2018 USD ($) a farm
Real Estate Properties [Line Items] |  |
No. of Farms | farm | 111 | 85
Total Acres | a | 86,535 | 73,205
Farm Acres | a | 69,985 |
Net Cost Basis | $ 794,769 |
Encumbrances | 485,049 |
LLC ownership, value | $ 587 |
California |  |
Real Estate Properties [Line Items] |  |
No. of Farms | farm | 42 | 33
Total Acres | a | 14,830 | 10,147
Farm Acres | a | 13,610 |
Net Cost Basis | $ 420,537 |
Encumbrances | 261,957 |
LLC ownership, value | $ 587 |
Florida |  |
Real Estate Properties [Line Items] |  |
No. of Farms | farm | 23 | 22
Total Acres | a | 20,770 | 17,184
Farm Acres | a | 16,256 |
Net Cost Basis | $ 211,132 |
Encumbrances | $ 133,327 |
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 | $ 55,941 |
Encumbrances | $ 22,427 |
Colorado |  |
Real Estate Properties [Line Items] |  |
No. of Farms | farm | 10 | 10
Total Acres | a | 31,448 | 31,448
Farm Acres | a | 24,513 |
Net Cost Basis | $ 42,125 |
Encumbrances | $ 27,089 |
Nebraska |  |
Real Estate Properties [Line Items] |  |
No. of Farms | farm | 8 | 2
Total Acres | a | 7,104 | 2,559
Farm Acres | a | 6,402 |
Net Cost Basis | $ 27,439 |
Encumbrances | $ 17,246 |
Michigan |  |
Real Estate Properties [Line Items] |  |
No. of Farms | farm | 15 | 5
Total Acres | a | 962 | 446
Farm Acres | a | 682 |
Net Cost Basis | $ 12,408 |
Encumbrances | $ 7,646 |
Texas |  |
Real Estate Properties [Line Items] |  |
No. of Farms | farm | 1 | 1
Total Acres | a | 3,667 | 3,667
Farm Acres | a | 2,219 |
Net Cost Basis | $ 8,335 |
Encumbrances | $ 5,227 |
Washington |  |
Real Estate Properties [Line Items] |  |
No. of Farms | farm | 1 | 1
Total Acres | a | 746 | 746
Farm Acres | a | 417 |
Net Cost Basis | $ 8,302 |
Encumbrances | $ 5,052 |
Oregon |  |
Real Estate Properties [Line Items] |  |
No. of Farms | farm | 3 | 3
Total Acres | a | 418 | 418
Farm Acres | a | 363 |
Net Cost Basis | $ 6,266 |
Encumbrances | $ 3,840 |
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 | $ 2,284 |
Encumbrances | 1,238 |
Long-term mortgage notes and bonds payable |  |
Real Estate Properties [Line Items] |  |
Deferred financing costs related to mortgage notes and bonds payable | $ 3,120 | $ 2,338
State of Arizona | Arizona |  |
Real Estate Properties [Line Items] |  |
No. of Farms | farm | 2 |
Total Acres | a | 1,368 |
Farm Acres | a | 1,221 |
Net Cost Basis | $ 2,100 |
2017 New Real Estate Activity | State of Arizona | Yuma, Arizona [Member] |  |
Real Estate Properties [Line Items] |  |
No. of Farms | farm | 2 |

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