Reporting Segments and Related Information - Revenue Components of Ranch Operations (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Revenue from External Customer [Line Items]
Total revenues	$ 49,523	$ 45,619	$ 35,255
Total expenses	50,954	45,183	42,773
Operating results	(2,016)	1,721	(7,331)
Ranch operations
Revenue from External Customer [Line Items]
Total revenues	3,609	3,691	3,837
Total expenses	5,316	5,451	5,411
Operating results	$ (1,707)	$ (1,760)	$ (1,574)