Notes Receivable (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended	12 Months Ended					3 Months Ended	12 Months Ended		3 Months Ended	12 Months Ended
	Jun. 30, 2008	Dec. 31, 2011	Dec. 31, 2010	Dec. 31, 2009	Apr. 30, 2005 room	Apr. 30, 2005 Bond Series One [Member]	Jun. 30, 2008 Bonds A Series [Member]	Dec. 31, 2011 Bonds A Series [Member]	Apr. 30, 2005 Bonds A Series [Member]	Jun. 30, 2008 Bonds B Series [Member]	Dec. 31, 2011 Bonds B Series [Member]	Apr. 02, 2008 Bonds B Series [Member]
Notes Receivable (Textual) [Abstract]
Bond issued, face value						$ 65			$ 95			$ 50
Interest Rates on Bonds								8.00%			10.00%
Effective interest rates on bonds							8.04%			11.42%
Present value of future debt service payments offset to property and equipment							93.8			38.3
Maturity date of notes receivable								Jul. 01, 2034			Sep. 01, 2037
Present value of interest offset to property and equipment	18.3
Number of hotel rooms					1,500
Interest Income		12.3	12.8	14.8
Payment received relating to notes receivables		$ 14.4	$ 16.3	$ 17.1