| **Cash and Marketable Securities**       | 12 Months Ended                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                     |
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| **Cash and Cash Equivalents [Abstract]** |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                |
| Cash and Marketable Securities           | Cash and Marketable Securities:The components of our investments as of December 31, 2013 are as follows (in millions):  Cash & Cash Equivalents Restricted Cash Restricted Marketable Securities TotalCash$64.5 $52.4 $— $116.9Equity securities— — 47.6 47.6Total$64.5 $52.4$47.6 $164.5The components of our investments as of December 31, 2012 are as follows (in millions):  Cash & Cash Equivalents Restricted Cash Restricted Marketable Securities TotalCash$132.8 $49.3 $— $182.1Equity securities— — 55.8 55.8Total$132.8 $49.3 $55.8 $237.9Restricted Cash—As of December 31, 2013 and 2012, Restricted cash consisted of the following (in millions):  As of December 31, 2013 2012Affiliate cash$13.6 $22.5Self-insured captive funds37.8 26.0Paid-loss deposit funds1.0 0.8Total restricted cash$52.4 $49.3Affiliate cash represents cash accounts maintained by joint ventures in which we participate where one or more of our external partners requested, and we agreed, that the joint venture’s cash not be commingled with other corporate cash accounts and be used only to fund the operations of those joint ventures. Self-insured captive funds represent cash held at our wholly owned insurance captive, HCS, Ltd., as discussed in Note 9,Self-Insured Risks. These funds are committed to pay third-party administrators for claims incurred and are restricted by insurance regulations and requirements. These funds cannot be used for purposes outside HCS without the permission of the Cayman Islands Monetary Authority. Paid-loss deposit funds represent cash held by third-party administrators to fund expenses and other payments related to claims.The classification of restricted cash held by HCS as current or noncurrent depends on the classification of the corresponding claims liability. As of December 31, 2013 and 2012, all restricted cash was current.Marketable Securities—Restricted marketable securities at both balance sheet dates represent restricted assets held at HCS. HCS insures HealthSouth’s professional liability, workers’ compensation, and other insurance claims. These funds are committed for payment of claims incurred, and the classification of these marketable securities as current or noncurrent depends on the classification of the corresponding claims liability. As of December 31, 2013 and 2012, $42.9 million and $39.4 million, respectively, of restricted marketable securities are included in Other long-term assets in our consolidated balance sheets.A summary of our restricted marketable securities as of December 31, 2013 is as follows (in millions):  Cost Gross Unrealized Gains Gross Unrealized Losses Fair ValueEquity securities$47.9 $0.2 $(0.5) $47.6A summary of our restricted marketable securities as of December 31, 2012 is as follows (in millions):  Cost Gross Unrealized Gains Gross Unrealized Losses Fair ValueEquity securities$54.4 $1.5 $(0.1) $55.8Cost in the above tables includes adjustments made to the cost basis of our equity securities for other-than-temporary impairments. During the years ended December 31, 2013, 2012, and 2011, we did not record any impairment charges related to our restricted marketable securities. Investing information related to our restricted marketable securities is as follows (in millions):  For the Year Ended December 31, 2013 2012 2011Proceeds from sales of restricted available-for-sale securities$16.6 $— $—Gross realized gains$1.0 $— $—Gross realized losses$(0.1) $— $—Our portfolio of marketable securities is comprised of investments in mutual funds that hold investments in a variety of industries and geographies. As discussed in Note 1,Summary of Significant Accounting Policies, “Marketable Securities,” when our portfolio includes marketable securities with unrealized losses that are not deemed to be other-than-temporarily impaired, we examine the severity and duration of the impairments in relation to the cost of the individual investments. We also consider the industry and geography in which each investment is held and the near-term prospects for a recovery in each. |

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| - Definition
The entire disclosure of cash, cash equivalents, and debt and equity securities, including any unrealized or realized gain (loss).
+ References
No definition available.
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