Summary of Significant Accounting Policies - Vineyards and Orchards (Details) $ in Thousands	3 Months Ended	12 Months Ended
	Dec. 31, 2019 USD ($) a	Dec. 31, 2019 USD ($) a	Dec. 31, 2018 USD ($)	Dec. 31, 2017 USD ($)
Revenue from External Customer [Line Items]
Acres of vineyards abandoned | a	313	313
Net book value related to vineyards and other farming related assets	$ 45,072	$ 45,072	$ 46,086
Abandonment expense	1,555	1,604	0	$ 0
Farming revenue adjustments for differences between original estimates and actual revenues received		3,746	$ 111	1,804
Almonds
Revenue from External Customer [Line Items]
Farming revenue adjustments for differences between original estimates and actual revenues received		(61)		352
Pistachios
Revenue from External Customer [Line Items]
Farming revenue adjustments for differences between original estimates and actual revenues received		3,807		$ 1,452
Vineyards and Other Farming Related Assets
Revenue from External Customer [Line Items]
Net book value related to vineyards and other farming related assets	$ 1,555	$ 1,555