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Real Estate and Intangible Assets - Purchase Price Allocations (Detail) - USD ($) $ in Thousands | Dec. 31, 2019 | Dec. 31, 2018
--- | --- | ---
2019 Acquisitions |  |
Business Acquisition [Line Items] |  |
Total purchase price | $ 252,722 |
2019 Acquisitions | Irrigation Systems |  |
Business Acquisition [Line Items] |  |
Total purchase price | 26,184 |
2019 Acquisitions | Horticulture |  |
Business Acquisition [Line Items] |  |
Total purchase price | 58,240 |
2019 Acquisitions | Other Improvements |  |
Business Acquisition [Line Items] |  |
Total purchase price | 358 |
2019 Acquisitions | In-place Leases |  |
Business Acquisition [Line Items] |  |
Total purchase price | 560 |
2019 Acquisitions | Leasing Costs |  |
Business Acquisition [Line Items] |  |
Total purchase price | 117 |
2019 Acquisitions | Below Market Leases [Member] |  |
Business Acquisition [Line Items] |  |
Total purchase price | (85) |
2019 Acquisitions | Investment in Limited Liability Company [Member] |  |
Business Acquisition [Line Items] |  |
Total purchase price | 587 |
2019 Acquisitions | Land and Land Improvements |  |
Business Acquisition [Line Items] |  |
Total purchase price | 164,681 |
2019 Acquisitions | Farm-related Facilities |  |
Business Acquisition [Line Items] |  |
Total purchase price | $ 2,080 |
2018 New Real Estate Activity |  |
Business Acquisition [Line Items] |  |
Total purchase price |  | $ 91,426
2018 New Real Estate Activity | Irrigation Systems |  |
Business Acquisition [Line Items] |  |
Total purchase price |  | 4,313
2018 New Real Estate Activity | Horticulture |  |
Business Acquisition [Line Items] |  |
Total purchase price |  | 13,288
2018 New Real Estate Activity | Other Improvements |  |
Business Acquisition [Line Items] |  |
Total purchase price |  | 0
2018 New Real Estate Activity | In-place Leases |  |
Business Acquisition [Line Items] |  |
Total purchase price |  | 763
2018 New Real Estate Activity | Leasing Costs |  |
Business Acquisition [Line Items] |  |
Total purchase price |  | 526
2018 New Real Estate Activity | Below Market Leases [Member] |  |
Business Acquisition [Line Items] |  |
Total purchase price |  | (95)
2018 New Real Estate Activity | Investment in Limited Liability Company [Member] |  |
Business Acquisition [Line Items] |  |
Total purchase price |  | 0
2018 New Real Estate Activity | Land and Land Improvements |  |
Business Acquisition [Line Items] |  |
Total purchase price |  | 72,508
2018 New Real Estate Activity | Farm-related Facilities |  |
Business Acquisition [Line Items] |  |
Total purchase price |  | $ 123

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