Summary of Significant Accounting Policies - Vineyards and Orchards (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Revenue from External Customer [Line Items]
Farming revenue adjustments for differences between original estimates and actual revenues received	$ 734	$ 3,531	$ 4,132
Almonds
Revenue from External Customer [Line Items]
Farming revenue adjustments for differences between original estimates and actual revenues received	653	1,260	1,458
Pistachios
Revenue from External Customer [Line Items]
Farming revenue adjustments for differences between original estimates and actual revenues received	$ 81	$ 2,271	$ 2,674