| **Long-term Debt - Textual (Details) (USD $)**                                | 3 Months Ended | 12 Months Ended |              |              |               |            | 12 Months Ended |                 |                                                                                                                                           | 12 Months Ended |             |                                                                                                            | 12 Months Ended | 3 Months Ended |             |             |                                                                | 3 Months Ended |              |               |                                                                    | 2 Months Ended |              |               | 3 Months Ended                                                     | 12 Months Ended |             |               |             |             |             |             |             |               |            |
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| **Long Term Debt (Textual) [ Abstract]**                                      |           |            |         |         |          |       |            |            |                                                                                                                                      |            |        |                                                                                                       |            |           |        |        |                                                           |           |         |          |                                                               |           |         |          |                                                               |            |        |          |        |        |        |        |        |          |       |   |   |   |   |   |   |   |   |   |
| Senior Notes, Face Amount                                                     |           |            |         |         | $ 120,000,000 |       | $ 525,000,000   | $ 1,000,000,000 |                                                                                                                                      |            |        |                                                                                                       |            |           |        |        |                                                           |           | $ 60,000,000 | $ 275,000,000 |                                                               |           | $ 60,000,000 | $ 250,000,000 | $ 290,000,000                                                      |            |        |          |        |        |        |        |        | $ 625,000,000 |       |   |   | $ 375,000,000 |   |   |   |   |   |   |
| Term Loan Payable                                                             | 0              | 97,500,000      | 0            |         |          |       |            |            |                                                                                                                                      |            | 100,000,000 |                                                                                                       |            |           |        |        |                                                           |           |         |          |                                                               |           |         |          |                                                               |            |        |          |        |        |        |        |        |          |       |   |   |   |   |   |   |   |   |   |
| Senior Notes, Proceeds Received From Issuance                                 |           |            |         |         | 122,000,000   |       |            |            |                                                                                                                                      |            |        |                                                                                                       |            |           |        |        |                                                           |           |         |          |                                                               |           |         |          |                                                               |            |        |          |        |        |        |        |        |          |       |   |   |   |   |   |   |   |   |   |
| Senior Notes Issuance, Proceeds Used For Debt Reduction                       |           |            |         |         |          |       |            |            | 45,000,000                                                                                                                                |            |        |                                                                                                       |            |           |        |        |                                                           |           |         |          |                                                               |           |         |          |                                                               |            |        |          | 77,000,000  |        |        |        |        |          |       |   |   |   |   |   |   |   |   |   |
| Term Loan Issuance, Proceeds Used For Debt Reduction                          |           |            |         |         |          |       |            |            |                                                                                                                                      |            |        |                                                                                                       |            |           |        |        |                                                           |           |         |          |                                                               |           |         |          |                                                               |            |        |          | 100,000,000 | 100,000,000 |        |        |        |          |       |   |   |   |   |   |   |   |   |   |
| Loss on Early Extinguishment of Debt                                          | 11,900,000     | (38,800,000)    | (12,300,000) | (12,500,000) |          |       |            |            |                                                                                                                                      |            |        |                                                                                                       |            |           |        |        |                                                           |           |         |          |                                                               |           |         |          |                                                               |            |        |          |        |        |        |        |        |          |       |   |   |   |   |   |   |   |   |   |
| Revolving Credit Facility, Maximum Borrowing Capacity                         |           |            |         |         |          |       |            |            |                                                                                                                                      |            | 500,000,000 |                                                                                                       |            | 500,000,000    |        |        |                                                           |           |         |          |                                                               |           |         |          |                                                               |            |        |          |        |        |        |        |        |          |       |   |   |   |   |   |   |   |   |   |
| Letter of Credit, Subfacility, Maximum Borrowing Capacity                     |           |            |         |         |          |       |            |            |                                                                                                                                      |            | 260,000,000 |                                                                                                       |            | 260,000,000    |        |        |                                                           |           |         |          |                                                               |           |         |          |                                                               |            |        |          |        |        |        |        |        |          |       |   |   |   |   |   |   |   |   |   |
| Available Cash, Amounts Used For Debt Reduction                               |           |            |         |         |          |       |            |            |                                                                                                                                      |            |        |                                                                                                       |            |           | 128,600,000 |        |                                                           |           |         |          |                                                               |           |         |          |                                                               |            |        | 125,000,000   | 203,000,000 |        |        |        |        |          |       |   |   |   |   |   |   |   |   |   |
| Revolver, Amounts Drawn For Debt Reduction                                    |           |            |         |         |          |       |            |            |                                                                                                                                      |            |        |                                                                                                       |            |           |        | 100,000,000 |                                                           |           |         |          |                                                               |           |         |          |                                                               |            |        | 50,000,000    | 150,000,000 |        |        |        |        |          |       |   |   |   |   |   |   |   |   |   |
| Term Loan, Quarterly Amortization, Through June 13, 2013                      |           |            |         |         |          |       |            |            | 1,250,000                                                                                                                                 |            |        |                                                                                                       |            |           |        |        |                                                           |           |         |          |                                                               |           |         |          |                                                               |            |        |          |        |        |        |        |        |          |       |   |   |   |   |   |   |   |   |   |
| Term Loan, Quarterly Amortization, Through June 30, 2014                      |           |            |         |         |          |       |            |            | 1,875,000                                                                                                                                 |            |        |                                                                                                       |            |           |        |        |                                                           |           |         |          |                                                               |           |         |          |                                                               |            |        |          |        |        |        |        |        |          |       |   |   |   |   |   |   |   |   |   |
| Term Loan, Quarterly Amortization, Through March 31, 2016                     |           |            |         |         |          |       |            |            | 2,500,000                                                                                                                                 |            |        |                                                                                                       |            |           |        |        |                                                           |           |         |          |                                                               |           |         |          |                                                               |            |        |          |        |        |        |        |        |          |       |   |   |   |   |   |   |   |   |   |
| Term Loan, Interest Rate Terms                                                |           |            |         |         |          |       |            |            | (1) LIBOR or (2) the higher of (a) Barclays’ Bank PLC's ("Barclays") prime rate and (b) the federal funds rate |            |        | (1) LIBOR or (2) the higher of (a) Barclays' prime rate and (b) the federal funds rate |            |           |        |        |                                                           |           |         |          |                                                               |           |         |          |                                                               |            |        |          |        |        |        |        |        |          |       |   |   |   |   |   |   |   |   |   |
| Term Loan, Basis Spread on Variable Rate                                      |           |            |         |         |          |       |            |            | 0.50%                                                                                                                                     | 2.25%           | 2.50%       | 0.50%                                                                                                      | 3.50%           |           |        |        |                                                           |           |         |          |                                                               |           |         |          |                                                               |            |        |          |        |        |        |        |        |          |       |   |   |   |   |   |   |   |   |   |
| Revolver, Commitment Fee Percentage                                           |           |            |         |         |          |       |            |            | 0.50%                                                                                                                                     |            |        | 0.50%                                                                                                      |            |           |        |        |                                                           |           |         |          |                                                               |           |         |          |                                                               |            |        |          |        |        |        |        |        |          |       |   |   |   |   |   |   |   |   |   |
| Term Loan, Variable Rate Basis                                                |           |            |         |         |          |       |            |            | LIBOR plus 2.5%                                                                                                                           |            |        |                                                                                                       |            |           |        |        |                                                           |           |         |          |                                                               |           |         |          |                                                               |            |        |          |        |        |        |        |        |          |       |   |   |   |   |   |   |   |   |   |
| Credit Agreement, Maximum Contractual Future Increase                         |           |            |         |         |          |       |            |            |                                                                                                                                      |            | 200,000,000 | 300,000,000                                                                                                |            |           |        |        |                                                           |           |         |          |                                                               |           |         |          |                                                               |            |        |          |        |        |        |        |        |          |       |   |   |   |   |   |   |   |   |   |
| Revolver, Amount Outstanding                                                  | 78,000,000     | 110,000,000     | 78,000,000   |         |          |       |            |            |                                                                                                                                      |            |        |                                                                                                       |            |           |        |        |                                                           |           |         |          |                                                               |           |         |          |                                                               |            |        |          |        |        |        |        |        |          |       |   |   |   |   |   |   |   |   |   |
| Revolver, Interest Rate at Period End                                         | 3.80%          | 2.60%           | 3.80%        |         |          |       |            |            |                                                                                                                                      |            |        |                                                                                                       |            |           |        |        |                                                           |           |         |          |                                                               |           |         |          |                                                               |            |        |          |        |        |        |        |        |          |       |   |   |   |   |   |   |   |   |   |
| Letters of Credit, Amount Outstanding                                         | 45,600,000     | 44,600,000      | 45,600,000   |         |          | 48,700,000 |            |            |                                                                                                                                      |            |        |                                                                                                       |            |           |        |        |                                                           |           |         |          |                                                               |           |         |          |                                                               |            |        |          |        |        |        |        |        |          |       |   |   |   |   |   |   |   |   |   |
| Senior Notes, Issue Price                                                     |           |            |         |         |          |       |            |            |                                                                                                                                      |            |        |                                                                                                       |            |           |        |        |                                                           |           | 1.0325       |          |                                                               |           | 1.0350       |          | 0.98327                                                            |            |        |          |        |        |        |        |        | 0.98505       |       |   |   |   |   |   |   |   |   |   |
| Senior Notes, Repurchase Price, Change in Control                             |           |            |         |         |          |       |            |            |                                                                                                                                      |            |        |                                                                                                       |            |           |        |        |                                                           |           |         | 101.00%       |                                                               |           |         |          | 101.00%                                                            |            |        |          |        |        |        |        |        |          |       |   |   |   |   |   |   |   |   |   |
| Debt Instrument, Maturity Date                                                |           |            |         |         |          |       |            |            |                                                                                                                                      |            |        |                                                                                                       |            |           |        |        | Oct.        01,         2018                                   |           |         |          | Sep. 15,         2022                                              |           |         |          |                                                               |            |        |          |        |        |        |        |        |          |       |   |   |   |   |   |   |   |   |   |
| Senior Notes, Stated Interest Rate                                            |           |            |         |         |          |       |            |            |                                                                                                                                      |            |        |                                                                                                       |            |           |        |        |                                                           |           |         | 7.25%         |                                                               |           |         | 7.75%         | 8.125%                                                             |            |        |          |        |        |        |        |        | 10.75%        |       |   |   |   |   |   |   |   |   |   |
| Debt Instruments, Effective Interest Rate                                     |           |            |         |         |          |       |            |            |                                                                                                                                      |            |        |                                                                                                       |            |           |        |        |                                                           |           |         | 7.50%         |                                                               |           |         | 7.90%         | 8.70%                                                              |            |        |          |        |        |        |        |        | 11.40%        |       |   |   |   | 8.10% | 11.20% | 7.80% | 6.80% | 6.60% | 9.00% |
| Senior Notes, Frequency of Periodic Payment                                   |           |            |         |         |          |       |            |            |                                                                                                                                      |            |        |                                                                                                       |            |           |        |        | semiannually in arrears on April 1 and October 1 of each year. |           |         |          | semiannually in arrears on March 15 and September 15 of each year. |           |         |          | semiannually in arrears on February 15 and August 15 of each year. |            |        |          |        |        |        |        |        |          |       |   |   |   |   |   |   |   |   |   |
| Senior Notes, Repurchase Amount, Any Twelve-Month Period                      |           |            |         |         |          |       |            |            |                                                                                                                                      |            |        |                                                                                                       |            |           |        |        |                                                           |           |         | 10.00%        |                                                               |           |         | 10.00%        |                                                               |            |        |          |        |        |        |        |        |          |       |   |   |   |   |   |   |   |   |   |
| Senior Notes, Repurchase Price, Any Twelve-Month Period                       |           |            |         |         |          |       |            |            |                                                                                                                                      |            |        |                                                                                                       |            |           |        |        |                                                           |           |         | 103.00%       |                                                               |           |         | 103.00%       |                                                               |            |        |          |        |        |        |        |        |          |       |   |   |   |   |   |   |   |   |   |
| Senior Notes, Amount Outstanding                                              |           |            |         |         |          |       |            |            |                                                                                                                                      |            |        |                                                                                                       |            |           |        |        | 275,000,000                                                    | 336,700,000    |         |          | 250,000,000                                                        | 312,000,000    |         |          |                                                               | 285,800,000     | 285,500,000 |          |        | 0           | 165,600,000 |        | 495,500,000 |          | 17,000,000 |   | 329,600,000 |   |   |   |   |   |   |   |
| Senior Notes, Aggregate Principal Amount, Tender Offers and Consents Received |           |            |         |         |          |       |            |            |                                                                                                                                      |            |        |                                                                                                       |            |           |        |        |                                                           |           |         |          |                                                               |           |         |          |                                                               |            |        |          |        |        |        |        |        |          |       | 313,000,000 |   |   |   |   |   |   |   |   |
| Senior Notes, Debt Reduction, Total Consideration Paid                        |           |            |         |         |          |       |            |            |                                                                                                                                      |            |        |                                                                                                       |            |           |        |        |                                                           |           |         |          |                                                               |           |         |          |                                                               |            |        |          |        |        | 175,000,000 | 353,000,000 |        |          | 18,000,000 | 333,000,000 |   |   |   |   |   |   |   |   |
| Senior Notes, Call Price                                                      |           |            |         |         |          |       |            |            |                                                                                                                                      |            |        |                                                                                                       |            |           |        |        |                                                           |           |         |          |                                                               |           |         |          |                                                               |            |        |          |        |        | 1.05375     | 1.05375     |        |          | 1.030      |   |   |   |   |   |   |   |   |   |
| Senior Notes, Principal Extinguished                                          |           |            |         |         |          |       |            |            |                                                                                                                                      |            |        |                                                                                                       |            |           |        |        |                                                           |           |         |          |                                                               |           |         |          |                                                               |            |        |          |        |        |        | 335,000,000 |        |          |       |   |   |   |   |   |   |   |   |   |
| Sale of LTCHs, Proceeds Used for Debt Reduction                               |           |            |         |         |          |       |            |            |                                                                                                                                      |            |        |                                                                                                       |            |           |        |        |                                                           |           |         |          |                                                               |           |         |          |                                                               |            |        | $ 108,000,000 |        |        |        |        |        |          |       |   |   |   |   |   |   |   |   |   |
| Number of Long-Term Acute Care Hospitals Sold                                 |           | 5               |         |         |          |       |            |            |                                                                                                                                      |            |        |                                                                                                       |            |           |        |        |                                                           |           |         |          |                                                               |           |         |          |                                                               |            |        |          |        |        |        |        |        |          |       |   |   |   |   |   |   |   |   |   |

| X                                                                                                                                                                                                                                                                                                                                       |
|-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
The amount of cash on-hand and available that was used to reduce principal on the Company's debt instruments.
+ References
No definition available.
+ Details**Name:**hls_AvailableCashAmountsUsedForDebtReduction**Namespace Prefix:**hls_**Data Type:**xbrli:monetaryItemType**Balance Type:**na**Period Type:**duration |
| X                                                                                                                                                                                                                                                                                                                                            |
|----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
The aggregate maximum future increase to the Company's credit facility as agreed to in the contractual terms.
+ References
No definition available.
+ Details**Name:**hls_CreditFacilityMaximumContractualFutureIncrease**Namespace Prefix:**hls_**Data Type:**xbrli:monetaryItemType**Balance Type:**na**Period Type:**instant |
| X                                                                                                                                                                                                                                                                                                                                                                                                                                                   |
|-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
Maximum borrowing capacity under the letter of credit subfacility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility.
+ References
No definition available.
+ Details**Name:**hls_LetterOfCreditSubfacilityMaximumBorrowingCapacity**Namespace Prefix:**hls_**Data Type:**xbrli:monetaryItemType**Balance Type:**na**Period Type:**instant |
| X                                                                                                                                                                                                                                                                                                                                                                                                   |
|-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
The amount of principal associated with the Company' bank loan(s) that will be paid down quarterly during the first contactually agreed to period of time.
+ References
No definition available.
+ Details**Name:**hls_LoanPayableToBankQuarterlyPrincipalAmortizationPeriodOne**Namespace Prefix:**hls_**Data Type:**xbrli:monetaryItemType**Balance Type:**na**Period Type:**instant |
| X                                                                                                                                                                                                                                                                                                                                                                                                        |
|----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
The amount of principal associated with the Company's bank loan(s) that will be paid down quarterly during the third contractually agreed to period of time.
+ References
No definition available.
+ Details**Name:**hls_LoanPayableToBankQuarterlyPrincipalAmortizationPeriodThree**Namespace Prefix:**hls_**Data Type:**xbrli:monetaryItemType**Balance Type:**na**Period Type:**duration |
| X                                                                                                                                                                                                                                                                                                                                                                                                      |
|--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
The amount of principal associated with the Company's bank loan(s) that will be paid down quarterly during the second contractually agreed to period of time.
+ References
No definition available.
+ Details**Name:**hls_LoanPayableToBankQuarterlyPrincipalAmortizationPeriodTwo**Namespace Prefix:**hls_**Data Type:**xbrli:monetaryItemType**Balance Type:**na**Period Type:**instant |
| X                                                                                                                                                       |
|---------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Details**Name:**hls_LongTermDebtTextualAbstract**Namespace Prefix:**hls_**Data Type:**xbrli:stringItemType**Balance Type:**na**Period Type:**duration |
| X                                                                                                                                                                                                                                                                                       |
|-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
Number of long-term acute care hospitals sold during the period.
+ References
No definition available.
+ Details**Name:**hls_NumberOfLongTermAcuteCareHospitalsSold**Namespace Prefix:**hls_**Data Type:**xbrli:integerItemType**Balance Type:**na**Period Type:**duration |
| X                                                                                                                                                                                                                                                                                                                                                             |
|---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
The amount of cash drawn on the Company's revolving line of credit and used to reduce principal on the Company's other debt insruments.
+ References
No definition available.
+ Details**Name:**hls_RevolverAmountsDrawnForDebtReduction**Namespace Prefix:**hls_**Data Type:**xbrli:monetaryItemType**Balance Type:**na**Period Type:**duration |
| X                                                                                                                                                                                                                                                                                                                                                                                          |
|--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
The amount of cash received from the sale of Company-owned hospital(s) and ultimately used to reduce the principal balance of the Company's debt instruments.
+ References
No definition available.
+ Details**Name:**hls_SaleOfHospitalsProceedsUsedForDebtReduction**Namespace Prefix:**hls_**Data Type:**xbrli:monetaryItemType**Balance Type:**na**Period Type:**duration |
| X                                                                                                                                                                                                                                                                               |
|---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
Par value of debt instrument issued plus or minus a premium or a discount.
+ References
No definition available.
+ Details**Name:**hls_SeniorNoteIssuePrice**Namespace Prefix:**hls_**Data Type:**xbrli:monetaryItemType**Balance Type:**na**Period Type:**instant |
| X                                                                                                                                                                                                                                                                                                                                                                              |
|--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
The aggregate principal amount of one of the Company's Senior Notes for which tender offers and consents were received.
+ References
No definition available.
+ Details**Name:**hls_SeniorNotesAggregatePrincipalAmountTenderOffersAndConsentsReceived**Namespace Prefix:**hls_**Data Type:**xbrli:monetaryItemType**Balance Type:**credit**Period Type:**instant |
| X                                                                                                                                                                                                                                                                                                                                                                                     |
|---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
The price (par plus a premium charged and expressed as a percentage of outstanding principal) that it will cost the Company to redeem or repurchase a Senior Note debt issuance.
+ References
No definition available.
+ Details**Name:**hls_SeniorNotesCallPrice**Namespace Prefix:**hls_**Data Type:**xbrli:monetaryItemType**Balance Type:**na**Period Type:**instant |
| X                                                                                                                                                                                                                                                                                                                                                                                                                                                             |
|---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
The total amount paid to retire or reduce the principal of the Company's Senior Notes including, but not limited to, principal reductions, any amounts paid for accrued and unpaid interest, fees, and/or tender premiums.
+ References
No definition available.
+ Details**Name:**hls_SeniorNotesDebtReductionTotalConsiderationPaid**Namespace Prefix:**hls_**Data Type:**xbrli:monetaryItemType**Balance Type:**credit**Period Type:**instant |
| X                                                                                                                                                                                                                                                                                                                                                                                   |
|-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
The amount of cash received from a Senior Notes isssuance and ultimately used to reduce principal amounts of the Company's other debt instruments.
+ References
No definition available.
+ Details**Name:**hls_SeniorNotesIssuanceProceedsUsedForDebtReduction**Namespace Prefix:**hls_**Data Type:**xbrli:monetaryItemType**Balance Type:**na**Period Type:**duration |
| X                                                                                                                                                                                                                                                                     |
|-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
Gross principal amount of Senior Notes extinguished.
+ References
No definition available.
+ Details**Name:**hls_SeniorNotesPrincipalExtinguished**Namespace Prefix:**hls_**Data Type:**xbrli:monetaryItemType**Balance Type:**na**Period Type:**instant |
| X                                                                                                                                                                                                                                                                                                                    |
|----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
The amount of cash received by the Company from a debt issuance of Senior Notes to the public.
+ References
No definition available.
+ Details**Name:**hls_SeniorNotesProceedsFromPublicOffering**Namespace Prefix:**hls_**Data Type:**xbrli:monetaryItemType**Balance Type:**na**Period Type:**instant |
| X                                                                                                                                                                                                                                                                                                                                                                                       |
|-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
The maximum amount (expressed as a percentage of outstanding principal) of the Company's Senior Notes that may be redeemed during any twelve-month period.
+ References
No definition available.
+ Details**Name:**hls_SeniorNotesRepurchaseAmountAnyTwelveMonthPeriod**Namespace Prefix:**hls_**Data Type:**num:percentItemType**Balance Type:**na**Period Type:**instant |
| X                                                                                                                                                                                                                                                                                                                                                                                    |
|--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
The price (expressed as a percentage of outstanding principal) that it would cost the Company to redeem its Senior Notes during any twelve-month period.
+ References
No definition available.
+ Details**Name:**hls_SeniorNotesRepurchasePriceAnyTwelveMonthPeriod**Namespace Prefix:**hls_**Data Type:**num:percentItemType**Balance Type:**na**Period Type:**instant |
| X                                                                                                                                                                                                                                                                                                                                                                                                         |
|-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
The price (expressed as a percentage of outstanding principal) that it would cost the Company to repurchase its Senior Notes associated with a change in control triggering event.
+ References
No definition available.
+ Details**Name:**hls_SeniorNotesRepurchasePriceChangeInControl**Namespace Prefix:**hls_**Data Type:**num:percentItemType**Balance Type:**na**Period Type:**instant |
| X                                                                                                                                                                                                                                                                                                                                                                                                    |
|------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
The amount of cash received from the issuance of a loan payable to a bank and ultimately used to reduce the principal balance of the Company's other debt instruments.
+ References
No definition available.
+ Details**Name:**hls_TermLoanIssuanceProceedsUsedForDebtReduction**Namespace Prefix:**hls_**Data Type:**xbrli:monetaryItemType**Balance Type:**na**Period Type:**duration |
| X                                                                                                                                                                                                                                                                                                                                   |
|-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
The percentage points added to the reference rate to compute the variable rate on the debt instrument.
+ References
No definition available.
+ Details**Name:**us-gaap_DebtInstrumentBasisSpreadOnVariableRate**Namespace Prefix:**us-gaap_**Data Type:**num:percentItemType**Balance Type:**na**Period Type:**instant |
| X                                                                                                                                                                                                                                                                                                                                                                                                                                 |
|-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
The reference rate for the variable rate of the debt instrument, such as LIBOR or the US Treasury rate and the maturity of the reference rate used, such as three months or six months LIBOR.
+ References
No definition available.
+ Details**Name:**us-gaap_DebtInstrumentDescriptionOfVariableRateBasis**Namespace Prefix:**us-gaap_**Data Type:**xbrli:stringItemType**Balance Type:**na**Period Type:**duration |
| X                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          |
|----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
The stated principal amount of the debt instrument at time of issuance, which may vary from the carrying amount because of unamortized premium or discount.
+ References
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| - Definition
Description of the frequency of periodic payments (monthly, quarterly, annual).
+ References
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|-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
Effective interest rate for the funds borrowed under the debt agreement considering interest compounding and original issue discount or premium.
+ References
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| - Definition
Interest rate stated in the contractual debt agreement.
+ References
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|-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
Description of the interest rate as being fixed or variable, and, if variable, identification of the index or rate on which the interest rate is based and the number of points or percentage added to that index or rate to set the rate, and other pertinent information, such as frequency of rate resets.
+ References
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| - Definition
Date when the debt instrument is scheduled to be fully repaid, which may be presented in a variety of ways (year, month and year, day, month and year, quarter, etc.).
+ References
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|--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
Amount represents the difference between the fair value of the payments made and the carrying amount of the debt at the time of its extinguishment.
+ References
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| - Definition
The total amount of the contingent obligation under letters of credit outstanding as of the reporting date.
+ References
No definition available.
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|---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
The carrying value as of the balance sheet date of the current and noncurrent portions of long-term obligations drawn from a line of credit, which is a bank's commitment to make loans up to a specific amount. Examples of items that might be included in the application of this element may consist of letters of credit, standby letters of credit, and revolving credit arrangements, under which borrowings can be made up to a maximum amount as of any point in time conditional on satisfaction of specified terms before, as of and after the date of drawdowns on the line. Includes short-term obligations that would normally be classified as current liabilities but for which (a) postbalance sheet date issuance of a long term obligation to refinance the short term obligation on a long term basis, or (b) the enterprise has entered into a financing agreement that clearly permits the enterprise to refinance the short-term obligation on a long term basis and the following conditions are met (1) the agreement does not expire within 1 year and is not cancelable by the lender except for violation of an objectively determinable provision, (2) no violation exists at the BS date, and (3) the lender has entered into the financing agreement is expected to be financially capable of honoring the agreement.
+ References
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| - Definition
The fee, expressed as a percentage of the line of credit facility, for the line of credit facility regardless of whether the facility has been used.
+ References
No definition available.
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| - Definition
The effective interest rate at the end of the reporting period.
+ References
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|---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility.
+ References
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|--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
Including the current and noncurrent portions, carrying value as of the balance sheet date of loans from a bank with maturities initially due after one year or beyond the normal operating cycle if longer.
+ References
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| - Definition
Including the current and noncurrent portions, carrying value as of the balance sheet date of Notes with the highest claim on the assets of the issuer in case of bankruptcy or liquidation (with maturities initially due after one year or beyond the operating cycle if longer). Senior note holders are paid off in full before any payments are made to junior note holders.
+ References
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