Basis of Presentation (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended	9 Months Ended
	Sep. 30, 2011 Year Hospital	Sep. 30, 2011 Month Year Hospital
Basis of Presentation [Textual] [Abstract]
Number of hospitals held for sale	1	1
Revenue recorded for medicare and medicaid incentive	$ 40.2	$ 40.2