Investment in Eldorado Financial Information (Details) (Eldorado, USD $)	3 Months Ended		9 Months Ended
	Sep. 30, 2012	Sep. 30, 2011	Sep. 30, 2012	Sep. 30, 2011
Eldorado
Schedule of Equity Method Investments [Line Items]
Net operating revenues	$ 65,907	$ 66,975	$ 194,771	$ 194,360
Operating income (loss)	6,816	(3,867)	20,629	8,460
Net income (loss)	1,973	(7,465)	7,822	(3,574)
Net loss attributable to non-controlling interest	0	432	0	493
Net income (loss) attributable to Eldorado	$ 1,973	$ (7,033)	$ 7,822	$ (3,081)