Reporting Segments and Related Information - Revenue Components of Ranch Operations (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
Revenue from External Customer [Line Items]
Total revenues	$ 13,469	$ 5,702
Income (loss)	1,814	(3,473)
Ranch operations
Revenue from External Customer [Line Items]
Total revenues	989	1,081
Income (loss)	(400)	(412)
Ranch operations | Game management
Revenue from External Customer [Line Items]
Total revenues	296	301
Ranch operations | Grazing
Revenue from External Customer [Line Items]
Total revenues	406	424
Ranch operations | High Desert Hunt Club
Revenue from External Customer [Line Items]
Total revenues	166	186
Ranch operations | Filming and other
Revenue from External Customer [Line Items]
Total revenues	$ 121	$ 170