Nashville Flood (Details Textual) (USD $)	3 Months Ended			12 Months Ended								12 Months Ended
	Dec. 31, 2010	Sep. 30, 2010	Jun. 30, 2010	Dec. 31, 2011	Dec. 31, 2010	Dec. 31, 2009	Dec. 31, 2011 Casualty Loss [Member]	Dec. 31, 2010 Casualty Loss [Member]	Dec. 31, 2010 Insurance Proceeds [Member]	Dec. 31, 2011 Insurance Proceeds [Member]	May 03, 2010 Insurance Proceeds [Member]	Dec. 31, 2010 Preopening Costs [Member]
Nashville Flood (Textual) [Abstract]
Property plant and equipment written down related to flood gross							$ 400,000	$ 161,200,000
Accumulated depreciation on property plant and equipment written down related to flood							100,000	116,200,000
Impairment of property and equipment				332,000	44,970,000		332,000	44,970,000
Employment cost								12,600,000				29,000,000
Equipment and facility rental								2,500,000				1,700,000
Property and other taxes								800,000				2,700,000
Consulting fee								900,000
Per occurrence flood limit										150,000,000	50,000,000
Insurance proceeds			50,000,000		50,000,000				50,000,000
Insurance cost								300,000				1,300,000
Advertising and promotional costs				22,200,000	25,600,000	18,700,000						6,800,000
Facility cost												3,700,000
Supplies expense												3,000,000
Preopening costs associated with reopening the affected properties	$ 23,600,000	$ 25,500,000	$ 6,200,000	$ 408,000	$ 55,287,000