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

The number of days Medicare payments to providers may be initially suspended by CMS. CMS may suspend payments if it possesses reliable information that an overpayment, fraud, or willful misrepresentation exists.

No definition available.

Name:	hls_InitialSuspensionPeriodofMedicarePayments
Namespace Prefix:	hls_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

The historical collection percentage of accounts receivable that have been denied and appealed as of the balance sheet date. The denial of certain diagnosis codes by Medicare contractors are based on medical necessity and in most instances are disputed or appealed by the Company.

No definition available.

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

The historical collection percentage of accounts receivable that have been denied and appealed up to an administrative law judge hearing as of the balance sheet date. The denial of certain diagnosis codes by Medicare contractors are based on medical necessity and in most instances are disputed or appealed by the Company.

No definition available.

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

The minimum dollar amount that must be accrued for a loss contingency related to a specific legal dispute that can be utilized for consideration prior to accruing an estimate of the legal fees related to this specific legal dispute.

No definition available.

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

Percentage of average annual patient discharges between 2010 and 2014 requested for review.

No definition available.

Name:	hls_Percentageofaverageannualpatientdischargesrequestedforreviewlessthan
Namespace Prefix:	hls_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

A reduction to net operating revenues for post-payment claims that are part of a review by the Recovery Audit Contractors. These post-payment audits are focused on medical necessity requirements for admission to IRFs rather than targeting a specific diagnosis code as in previous pre-payment audits. Medical necessity is a subjective assessment by an independent physician of a patient’s ability to tolerate and benefit from intensive multi-disciplinary therapy provided in an IRF setting.

No definition available.

Name:	hls_ReductioninNetOperatingRevenuePostPaymentClaims
Namespace Prefix:	hls_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

Summary Of Significant Accounting Policies Textual.

No definition available.

Name:	hls_SummaryOfSignificantAccountingPoliciesTextualAbstract
Namespace Prefix:	hls_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

Amount charged to advertising expense for the period, which are expenses incurred with the objective of increasing revenue for a specified brand, product or product line.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 720
-SubTopic 35
-Section 50
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=6420018&loc=d3e36677-107848

Name:	us-gaap_AdvertisingExpense
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

Useful life of finite-lived intangible assets, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

No definition available.

Name:	us-gaap_FiniteLivedIntangibleAssetUsefulLife
Namespace Prefix:	us-gaap_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

The amortization method of a major finite-lived intangible asset class. A major class is composed of intangible assets that can be grouped together because they are similar either by their nature or by their use in the operations of a company. The straight-line method is the preferred amortization method, unless another method better reflects the pattern in which the asset is consumed.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 350
-SubTopic 30
-Section 35
-Paragraph 6
-URI http://asc.fasb.org/extlink&oid=26713198&loc=d3e15372-109273

Name:	us-gaap_FiniteLivedIntangibleAssetsAmortizationMethod
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

No definition available.

Name:	us-gaap_FiniteLivedIntangibleAssetsLineItems
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

The number of states the entity operates in as of the balance sheet date.

No definition available.