Assets and Liabilities in and Results of Discontinued Operations (Details) (USD $) In Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2011	Sep. 30, 2010	Sep. 30, 2011	Sep. 30, 2010
Operating results of discontinued operations
Net operating revenues	$ 9.8	$ 30.4	$ 96.3	$ 93.8
Costs and expenses	13.5	27.5	68.0	85.5
Impairments	4.6	0	5.9	0.6
Income from discontinued operations	(8.3)	2.9	22.4	7.7
Loss on disposal of assets of discontinued operations	0	0	0	(1.2)
Gain on sale of LTCHs	65.8	0	65.8	0
Income tax (expense) benefit	(22.8)	0.3	(34.4)	1.3
Income from discontinued operations, net of tax	$ 34.7	$ 3.2	$ 53.8	$ 7.8