Name:	hls_CommonStockSharesIssuedExactNumberConsolidatedSecuritiesActionSettlement
Namespace Prefix:	hls_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	instant

The exact number of common stock warrants issued by the Company in full satisfaction of its obligation to do so under the Consolidated Securities Action Settlement.

No definition available.

Name:	hls_CommonStockWarrantsIssuedExactNumberConsolidatedSecuritiesActionSettlement
Namespace Prefix:	hls_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	instant

Face value of debt security held by an individual class member electing to be excluded from a class action settlement agreement.

No definition available.

Name:	hls_FaceValueOfDebtSecurityHeldByNonConsentingClassMembers
Namespace Prefix:	hls_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

This represents the amount of income recognized in the period to settle audits of unclaimed property.

No definition available.

Name:	hls_GainRelatedToSettlementAuditsOfUnclaimedProperty
Namespace Prefix:	hls_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

The amount of income recognized in the period to settle audits of unclaimed property that is included in income from discontinued operations, net of tax.

No definition available.

Name:	hls_GainRelatedToSettlementAuditsOfUnclaimedPropertyIncludedInIncomeFromDiscontinuedOperationsNetOfTax
Namespace Prefix:	hls_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
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Judgment against former CEO that is excluded from net recoveries when calculating the percentage owed to plaintiffs.

No definition available.

Name:	hls_JudgmentExcludedFromNetRecoveries
Namespace Prefix:	hls_
Data Type:	xbrli:monetaryItemType
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Period Type:	instant

Subsequent adjustment to initial litigation settlement expense based on the current value of the Company's common stock and the associated warrants. The original consideration for settlement was common stock and warrants issued by the Company.

No definition available.

Name:	hls_LitigationSettlementExpenseSubsequentAdjustment
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Balance Type:	credit
Period Type:	duration

Unfavorable outcome decreed by a court in a lawsuit in which the Company is involved.

No definition available.

Name:	hls_LossContingencyJudgmentAgainstCompany
Namespace Prefix:	hls_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

The amount of consideration to which the entity agreed to pay in a settlement agreement which resolved the matter.

No definition available.

Name:	hls_LossContingencyLitigationSettlementConsideration
Namespace Prefix:	hls_
Data Type:	xbrli:monetaryItemType
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Period Type:	duration

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 claims against the Company's former CEO.

No definition available.

Name:	hls_NetRecoveriesPercentageOwedToFederalPlaintiffs
Namespace Prefix:	hls_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

Number of shares of common stock held by individual class members electing to be excluded from a class action settlement.

No definition available.

Name:	hls_SharesOfCommonStockHeldByNonConsentingClassMembers
Namespace Prefix:	hls_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	instant

The net proceeds or assets obtained in excess of (less than) the net carrying amount of assets recorded, or assets distributed and liabilities assumed less than (in excess of) estimated litigation liability extinguished, in settlement of a litigation matter. Represents (for other than an insurance entity in its normal claims settlement process), the amount of income (expense) recognized in the period to settle pending or threatened litigation and insurance claims.

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 5

-Paragraph 9, 10, 11, 12

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Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 450

-SubTopic 20

-Section 50

-Paragraph 1

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Interest and debt related expenses associated with nonoperating financing activities of the entity.

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-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 34

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-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

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-Topic 835

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-Section 50

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This element represents the expenses incurred by the entity which are directly related and attributable to receiving an award in settlement of litigation.

No definition available.

Name:	us-gaap_LitigationSettlementExpense
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Data Type:	xbrli:monetaryItemType
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This element represents the gross amount awarded, to be received by, or to be remitted to the entity in settlement of litigation occurring during the period.

No definition available.

Name:	us-gaap_LitigationSettlementGross
Namespace Prefix:	us-gaap_
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Balance Type:	credit
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- Details

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The value (monetary amount) of the award the plaintiff seeks in the legal matter.

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 450

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The amount of loss pertaining to the specified contingency that was charged against earnings in the period, including the effects of revisions in previously reported estimates.

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

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Reference 2: http://www.xbrl.org/2003/role/presentationRef

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Cash received for the settlement of litigation during the current period.

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 95

-Paragraph 27

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 230

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-Section 45

-Paragraph 25

-Subparagraph (c)

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