Commitments and Contingencies - Additional Information (Detail) $ in Thousands	1 Months Ended	2 Months Ended	3 Months Ended		6 Months Ended		7 Months Ended	25 Months Ended	44 Months Ended	60 Months Ended	87 Months Ended	114 Months Ended	162 Months Ended
	Jun. 30, 2017 USD ($) a farm	Jun. 30, 2017 USD ($) a farm	Jun. 30, 2017 USD ($) a farm well	Jun. 30, 2016 USD ($) a	Jun. 30, 2017 USD ($) a farm	Jun. 30, 2016 USD ($) a farm	Dec. 31, 2017 USD ($)	Jun. 30, 2019 USD ($)	Dec. 31, 2020 USD ($)	Jun. 30, 2022 USD ($)	Sep. 30, 2024 USD ($)	Dec. 31, 2026 USD ($)	Jan. 09, 2031 USD ($)	Sep. 30, 2015 a
Loss Contingencies [Line Items]
Area of real estate property (in acres) | a	57,930	57,930	57,930	23,456	57,930	23,456
Rental revenue			$ 5,994	$ 4,241	$ 11,742	$ 7,921
Estimated cost					$ 1,624	$ 7,883
Number of farms acquired | farm					0	3
California
Loss Contingencies [Line Items]
Area of real estate property (in acres) | a	6,713	6,713	6,713	4,029	6,713	4,029								854
Removal area of old grape vineyards (in acres) | a			274
Number of new drilling wells | well			4
Area of new almond trees (in acres) | a			800
Expended or accrued for capital improvements					$ 8,400
Rental revenue					$ 5,728	$ 4,502
California | Forecast
Loss Contingencies [Line Items]
Rental revenue													$ 5,200
Oregon
Loss Contingencies [Line Items]
Area of real estate property (in acres) | a	2,313	2,313	2,313	2,313	2,313	2,313
Expended or accrued for capital improvements		$ 353
Rental revenue					$ 589	$ 585
Number of farms in lease amendment | farm	1	1	1		1
Oregon | Forecast
Loss Contingencies [Line Items]
Rental revenue											$ 718
Estimated cost									$ 1,800
Annual rent escalation (as percent)											6.50%
North Carolina
Loss Contingencies [Line Items]
Area of real estate property (in acres) | a	310	310	310	0	310	0
Expended or accrued for capital improvements	$ 103
Rental revenue					$ 10	$ 0
Number of farms acquired | farm	2
Number of years in lease term to provide additional support	2 years
North Carolina | Forecast
Loss Contingencies [Line Items]
Rental revenue												$ 157
Estimated cost								$ 300
Florida
Loss Contingencies [Line Items]
Area of real estate property (in acres) | a	9,315	9,315	9,315	5,094	9,315	5,094
Expended or accrued for capital improvements					$ 5
Rental revenue					$ 3,143	$ 1,539
Number of farms in lease amendment | farm	1	1	1		1
Florida | Forecast
Loss Contingencies [Line Items]
Rental revenue										$ 280
Estimated cost							$ 700
Annual rent escalation (as percent)										8.50%