Investment in Eldorado Financial Information (Details) (Eldorado, USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2014	Mar. 31, 2013
Eldorado
Schedule of Equity Method Investments [Line Items]
Net operating revenues	$ 57,030	$ 62,179
Operating income	1,552	6,025
Net income (loss)	$ (2,333)	$ 2,087