| **Earnings Per Common Share - Table 1 (Details) (USD $)In Millions, except Per Share data, unless otherwise specified** | 3 Months Ended | 12 Months Ended |
|-------------------------------------------------------------------------------------------------------------------------|----------------|-----------------|
||
| **Numerator:**                                                                                                          |           |            |   |   |   |   |   |   |   |   |   |
| Income from continuing operations                                                                                       | $ 67.5         | $ 33.6          | $ 30.7 | $ 74.0 | $ 788.6 | $ 38.7 | $ 54.2 | $ 49.2 | $ 205.8 | $ 930.7 | $ 110.4 |
| Less: Net income attributable to noncontrolling interests included in continuing operations                             |           |            |   |   |   |   |   |   | (47.0) | (40.9) | (33.3) |
| Less: Convertible perpetual preferred stock dividends                                                                   |           |            |   |   |   |   |   |   | (26.0) | (26.0) | (26.0) |
| Income Loss from Continuing Operations Attributable to Common Shareholders                                              |           |            |   |   |   |   |   |   | 132.8 | 863.8 | 51.1 |
| Income from discontinued operations, net of tax, attributable to HealthSouth common shareholders                        |           |            |   |   |   |   |   |   | 49.9 | 9.2 | 17.7 |
| Net income attributable to HealthSouth common shareholders                                                              |           |            |   |   |   |   |   |   | 182.7 | 873.0 | 68.8 |
| **Denominator:**                                                                                                        |           |            |   |   |   |   |   |   |   |   |   |
| Basic weighted average common shares outstanding                                                                        |           |            |   |   |   |   |   |   | 93.3 | 92.8 | 88.8 |
| **Basic earnings per common share:**                                                                                    |           |            |   |   |   |   |   |   |   |   |   |
| Income from continuing operations attributable to HealthSouth common shareholders                                       | $ 0.52         | $ 0.17          | $ 0.14 | $ 0.60 | $ 8.31 | $ 0.24 | $ 0.40 | $ 0.36 | $ 1.42 | $ 9.31 | $ 0.58 |
| Income from discontinued operations, net of tax, attributable to HealthSouth common shareholders                        | $ (0.05)       | $ 0.37          | $ 0.03 | $ 0.19 | $ 0.02 | $ 0.03 | $ 0.04 | $ 0.01 | $ 0.54 | $ 0.10 | $ 0.19 |
| Net income attributable to HealthSouth common shareholders                                                              | $ 0.47         | $ 0.54          | $ 0.17 | $ 0.79 | $ 8.33 | $ 0.27 | $ 0.44 | $ 0.37 | $ 1.96 | $ 9.41 | $ 0.77 |
| **Numerator:**                                                                                                          |           |            |   |   |   |   |   |   |   |   |   |
| Income from continuing operations                                                                                       | 67.5           | 33.6            | 30.7 | 74.0 | 788.6 | 38.7 | 54.2 | 49.2 | 205.8 | 930.7 | 110.4 |
| Less: Net income attributable to noncontrolling interests included in continuing operations                             |           |            |   |   |   |   |   |   | (47.0) | (40.9) | (33.3) |
| Income from continuing operations attributable to HealthSouth common shareholders                                       |           |            |   |   |   |   |   |   | 158.8 | 889.8 | 77.1 |
| Income from discontinued operations, net of tax, attributable to HealthSouth common shareholders                        |           |            |   |   |   |   |   |   | 49.9 | 9.2 | 17.7 |
| Net income attributable to HealthSouth                                                                                  | $ 50.0         | $ 57.0          | $ 21.9 | $ 79.8 | $ 779.2 | $ 31.8 | $ 47.3 | $ 40.7 | $ 208.7 | $ 899.0 | $ 94.8 |
| **Denominator:**                                                                                                        |           |            |   |   |   |   |   |   |   |   |   |
| Diluted weighted average common shares outstanding                                                                      |           |            |   |   |   |   |   |   | 109.2 | 108.5 | 103.3 |
| **Diluted earnings per common share:**                                                                                  |           |            |   |   |   |   |   |   |   |   |   |
| Income from continuing operations attributable to HealthSouth common shareholders                                       | $ 0.50         | $ 0.17          | $ 0.14 | $ 0.57 | $ 7.15 | $ 0.24 | $ 0.40 | $ 0.36 | $ 1.42 | $ 8.20 | $ 0.58 |
| Income from discontinued operations, net of tax, attributable to HealthSouth common shareholders                        | $ (0.04)       | $ 0.37          | $ 0.03 | $ 0.16 | $ 0.01 | $ 0.03 | $ 0.04 | $ 0.01 | $ 0.54 | $ 0.08 | $ 0.19 |
| Net income attributable to HealthSouth common shareholders                                                              | $ 0.46         | $ 0.54          | $ 0.17 | $ 0.73 | $ 7.16 | $ 0.27 | $ 0.44 | $ 0.37 | $ 1.96 | $ 8.28 | $ 0.77 |

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| - Definition
Equity impact of preferred stock cash dividends declared by an entity during the period. This element includes paid and unpaid dividends declared during the period.
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|----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
The amount of net income (loss) for the period per each share of common stock or unit outstanding during the reporting period.
+ References
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|----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
The amount of net income (loss) for the period available to each share of common stock or common unit outstanding during the reporting period and to each share or unit that would have been outstanding assuming the issuance of common shares or units for all dilutive potential common shares or units outstanding during the reporting period.
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|----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
This element represents the income or loss from continuing operations attributable to noncontrolling interests, if any, which may also be defined as revenue less expenses and taxes from ongoing operations before extraordinary items which are apportioned to that ownership interest in subsidiary equity which is not attributable to the parent.
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|--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
This element represents the income or loss from continuing operations attributable to the economic entity which may also be defined as revenue less expenses and taxes from ongoing operations before extraordinary items, and noncontrolling interest.
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|-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
The amount of net income (loss) from continuing operations per each share of common stock or unit outstanding during the reporting period.
+ References
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|--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
The amount of net income (loss) derived from continuing operations during the period available to each share of common stock or common unit outstanding during the reporting period and to each share or unit that would have been outstanding assuming the issuance of common shares or units for all dilutive potential common shares or units outstanding during the reporting period.
+ References
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|----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
This element represents the overall income (loss) from a disposal group apportioned to the parent that is classified as a component of the entity, net of income tax, reported as a separate component of income before extraordinary items after deduction or consideration of the amount which may be allocable to noncontrolling interests, if any. Includes the following (net of tax): income (loss) from operations during the phase-out period, gain (loss) on disposal, provision (or any reversals of earlier provisions) for loss on disposal, and adjustments of a prior period gain (loss) on disposal.
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|-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
The amount of net income (loss) derived from discontinued operations during the period, net of related tax effect, per each share of common stock or unit outstanding during the reporting period.
+ References
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| - Definition
The amount of net income or loss derived from discontinued operations during the period available to each share of common stock or common unit outstanding during the reporting period and to each share or unit that would have been outstanding assuming the issuance of common shares or units for all dilutive potential common shares or units outstanding during the reporting period.
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| - Definition
The portion of profit or loss for the period, net of income taxes, which is attributable to the parent.
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| - Definition
Net income after adjustments for dividends on preferred stock (declared in the period) and/or cumulative preferred stock (accumulated for the period).
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| - Definition
The average number of shares or units issued and outstanding that are used in calculating diluted EPS or earnings per unit (EPU), determined based on the timing of issuance of shares or units in the period.
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| - Definition
Number of [basic] shares or units, after adjustment for contingently issuable shares or units and other shares or units not deemed outstanding, determined by relating the portion of time within a reporting period that common shares or units have been outstanding to the total time in that period.
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