| **Assets and Liabilities in and Results of Discontinued Operations (Tables)** | 12 Months Ended                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                       |
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| **Discontinued Operations and Disposal Groups [Abstract]**                    |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  |
| Schedule of Operating Results, Discontinued Operations, Total                 | The operating results of discontinued operations are as follows (in millions):  For the Year Ended December 31, 2011 2010 2009Net operating revenues$95.7 $123.7 $144.0Costs and expenses67.8 108.8 136.0Impairments6.8 0.6 4.0Income from discontinued operations21.1 14.3 4.0(Loss) gain on disposal of assets of discontinued operations— (1.2) 0.3Gain on divestitures of LTCHs / divisions65.6 — 13.4Income tax (expense) benefit(37.9) (4.0) 0.7Income from discontinued operations, net of tax$48.8 $9.1 $18.4                            |
| Schedule of Assets and Liabilities, Discontinued Operations, Total            | Assets and liabilities in discontinued operations consist of the following (in millions):  As of December 31, 2011 2010Assets:   Accounts receivable, net$4.8 $18.2Other current assets0.1 1.6Total current assets4.9 19.8Property and equipment, net6.9 46.4Goodwill— 11.0Long-term assets0.4 0.4Total long-term assets7.3 57.8Total assets$12.2 $77.6Liabilities:   Accounts payable$1.0 $4.5Accrued expenses and other current liabilities5.5 7.0Total current liabilities6.5 11.5Long-term liabilities0.7 1.2Total liabilities$7.2 $12.7 |
| Schedule of Operating Results, Discontinued Operations, Surgery Centers       | The operating results of our former surgery centers division included in discontinued operations consist of the following (in millions):  For the Year Ended December 31, 2011 2010 2009Net operating revenues$5.0 $0.5 $7.4Costs and expenses(0.5) 0.7 3.9Income (loss) from discontinued operations5.5 (0.2) 3.5Gain on disposal of assets of discontinued operations— — 0.7Gain on divestiture of division— — 13.4Income tax (expense) benefit(2.0) 0.1 0.4Income (loss) from discontinued operations, net of tax$3.5 $(0.1) $18.0          |
| Schedule of Operating Results, Discontinued Operations, Outpatient            | The operating results of our former outpatient division included in discontinued operations consist of the following (in millions):  For the Year Ended December 31, 2011 2010 2009Net operating revenues$12.8 $0.5 $0.5Costs and expenses(0.4) (3.5) 7.7Income (loss) from discontinued operations13.2 4.0 (7.2)Income tax expense(4.8) (1.4) —Income (loss) from discontinued operations, net of tax$8.4 $2.6 $(7.2)                                                                                                                                                               |

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| - Definition
Tabular disclosure of assets and liabilities of the Company classified as part of discontinued operations as of the balance sheet date.
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Tabular disclosure of operating results of our former outpatient division included in discontinued operations for the periods presented.
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Tabular disclosure of operating results of our former surgery centers division included in discontinued operations for the periods presented.
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Tabular disclosure of operating results of the Company's discontinued operations for the periods presented.
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No definition available.
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