| **Contingencies and Other Commitments (Details) (USD $)**                       | 3 Months Ended | 9 Months Ended |        | 3 Months Ended | 12 Months Ended | 3 Months Ended |             |            | 3 Months Ended |        | 3 Months Ended |
|---------------------------------------------------------------------------------|----------------|----------------|--------|----------------|-----------------|----------------|-------------|------------|----------------|--------|----------------|
||
| **Contingencies (Textual) [Abstract]**                                          |           |           |   |           |            |           |        |       |           |   |           |   |   |
| Litigation Settlement, Gross                                                    |           |           |   |           | $ 2,900,000,000 |           |        |       |           |   |           |   |   |
| Long-term Purchase Commitment, Time Period                                      |           |           |   |           |            |           | three years |       |           |   |           |   |   |
| Consent Judgment Awarded to Plaintiff                                           |           |           |   |           |            | 376,000,000    |        |       |           |   |           |   |   |
| Annual Percentage Rate                                                          |           |           |   |           |            | 10.00%         |        |       |           |   |           |   |   |
| Litigation Settlement, Consideration                                            |           |           |   |           |            | 300,000        |        |       |           |   |           |   |   |
| Damages Awarded, Plaintiff                                                      |           |           |   |           |            |           |        | 12,300,000 |           |   |           |   |   |
| Number of hospitals that received subpoenas                                     |           |           |   |           |            |           |        |       |           | 4      |           |   |   |
| Compliance Threshold Under Health Care Act                                      |           |           |   |           |            |           |        |       | 60.00%         |   |           |   |   |
| Number of patient medical records requested for each hospital in subpoenas      |           |           |   |           |            |           |        |       |           | 100    |           |   |   |
| Percentage of Net Profit Due Company from Hospital Building Sale                |           |           |   | 40.00%         |            |           |        |       |           |   |           |   |   |
| Proceeds from sale of Digital Hospital                                          | 10,800,000     | 10,800,000     | 0      |           |            |           |        |       |           |   |           |   |   |
| Percentage of average annual patient discharges requested for review, less than |           |           |   |           |            |           |        |       |           |   | 1.00%          |   |   |
| Net Recoveries Percentage Owed to Federal Plaintiffs                            |           |           |   |           |            |           |        |       |           |   |           | 25.00% |   |
| Gain Due To Collection From Former Officers                                     |           |           |   |           |            |           |        |       |           |   |           |   | $ 5,000,000 |

| X                                                                                                                                                                                                                                                                                                                            |
|------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
The rate per annum at which interest is charged on the balance of an outstanding liability, debt agreement, contract, etc.
+ References
No definition available.
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| X                                                                                                                                                                                                                                                                                                                                                                              |
|--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
Compliance threshold under the Medicare, Medicaid, and State Children's Health Insurance Program (SCHIP) Extension Act of 2007 as of the blance sheet date.
+ References
No definition available.
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| X                                                                                                                                                                                                                                                                                                                                                                                                              |
|----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
Consent judgment awarded to General Medicine against Horizon/CMS for the alleged wrongful termination of a contract to provide medical director services to skilled nursing facilities.
+ References
No definition available.
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| X                                                                                                                                                        |
|----------------------------------------------------------------------------------------------------------------------------------------------------------|
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| X                                                                                                                                                                                                                                                                                                                                                    |
|------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
The amount of consideration to which the entity agreed to pay in a settlement agreement which resolved the matter.
+ References
No definition available.
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| X                                                                                                                                                                                                                                                                                                                                                                                                                                                                                             |
|-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
The amount owed to the federal plaintiffs as part of the Consolidated Securities Action settlement agreement and expressed as a percentage of any net recoveries received from any future judgments obtained by the Company with respect to certain legal claims.
+ References
No definition available.
+ Details**Name:**hls_NetRecoveriesPercentageOwedtoFederalPlaintiffs**Namespace Prefix:**hls_**Data Type:**num:percentItemType**Balance Type:**na**Period Type:**instant |
| X                                                                                                                                                                                                                                                                                                                           |
|-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
Number of patient medical records requested for each hospital in subpoenas.
+ References
No definition available.
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| X                                                                                                                                                                                                                                                                                                                                                                                 |
|-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
Number of hospitals that received subpoenas in connection with an investigation of alleged improper or fraudulent claims submitted to Medicare and Medicaid.
+ References
No definition available.
+ Details**Name:**hls_NumberOHospitalsThatReceivedSubpoenas**Namespace Prefix:**hls_**Data Type:**xbrli:integerItemType**Balance Type:**na**Period Type:**instant |
| X                                                                                                                                                                                                                                                                                                                                     |
|---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
Percentage of average annual patient discharges between 2010 and 2012 requested for review
+ References
No definition available.
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| X                                                                                                                                                                                                                                                                                                                                                    |
|------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
Percentage of net profit the Company is entitled to if the current buyer sells hospital building in the future.
+ References
No definition available.
+ Details**Name:**hls_PercentageOfNetProfitDueCompanyFromHospitalBuildingSale**Namespace Prefix:**hls_**Data Type:**num:percentItemType**Balance Type:**na**Period Type:**instant |
| X                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                         |
|---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
Amount of gain (loss) recognized in settlement of litigation and insurance claims. Excludes claims within an insurance entity's normal claims settlement process.
+ References
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| X                                                                                                                                                                                                                                                                                                                  |
|--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
Amount of judgment or settlement awarded to (against) the entity in respect of litigation.
+ References
No definition available.
+ Details**Name:**us-gaap_LitigationSettlementAmount**Namespace Prefix:**us-gaap_**Data Type:**xbrli:monetaryItemType**Balance Type:**credit**Period Type:**duration |
| X                                                                                                                                                                                                                                                                                 |
|-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
Specifies the time period covered by the arrangement.
+ References
No definition available.
+ Details**Name:**us-gaap_LongTermPurchaseCommitmentTimePeriod**Namespace Prefix:**us-gaap_**Data Type:**xbrli:stringItemType**Balance Type:**na**Period Type:**duration |
| X                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                 |
|---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
Amount of damages awarded to the plaintiff in the legal matter.
+ References
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| X                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        |
|----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
The cash inflow from the sale of long-lived, physical assets that are used in the normal conduct of business to produce goods and services and not intended for resale.
+ References
Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Investing Activities -URI http://asc.fasb.org/extlink&oid=6516133Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 12 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3179-108585
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