Investment in Mesquite (Details) - Mesquite - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014
Schedule of Equity Method Investments [Line Items]
Net operating revenues	$ 20,637	$ 19,925	$ 74,126	$ 70,733
Operating income (loss)	(1,610)	(1,732)	6,391	3,276
Net income (loss)	$ (2,861)	$ (2,707)	$ 3,126	$ 225