Reporting Segments and Related Information - Revenue Components of Ranch Operations (Details) a in Thousands, $ in Thousands	12 Months Ended
	Dec. 31, 2018 USD ($) a	Dec. 31, 2017 USD ($)	Dec. 31, 2016 USD ($)
Revenue from External Customer [Line Items]
Area of land | a	270
Total revenues	$ 45,619	$ 35,255	$ 45,979
Ranch operations
Revenue from External Customer [Line Items]
Total revenues	3,691	3,837	3,338
Ranch operations | Game management
Revenue from External Customer [Line Items]
Total revenues	1,382	1,291	1,296
Ranch operations | Grazing
Revenue from External Customer [Line Items]
Total revenues	1,520	1,677	1,187
Ranch operations | High Desert Hunt Club
Revenue from External Customer [Line Items]
Total revenues	305	351	334
Ranch operations | Filming and other
Revenue from External Customer [Line Items]
Total revenues	$ 484	$ 518	$ 521