Name:	ehc_AffiliatesOwnershipPercentage
Namespace Prefix:	ehc_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

Investments in and advances to nonconsolidated affiliates.

No definition available.

Name:	ehc_InvestmentsInAndAdvancesToNonconsolidatedAffiliatesTextualAbstract
Namespace Prefix:	ehc_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

Number of general or limited partnerships, limited liability companies, or joint ventures of which the Company has investments.

No definition available.

Name:	ehc_NumberOfGeneralOrLimitedPartnershipsLimitedLiabilityCompaniesOrJointVentures
Namespace Prefix:	ehc_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	instant

Number of partially owned subsidiaries in which the Company has investments but are not consolidated.

No definition available.

Name:	ehc_NumberOfPartiallyOwnedSubsidiariesNonconsolidated
Namespace Prefix:	ehc_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	instant

In a business combination achieved in stages, this element represents the amount of gain recognized by the entity as a result of remeasuring to fair value the equity interest in the acquiree it held before the business combination.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 805
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (g)(2)
-URI http://asc.fasb.org/extlink&oid=79982066&loc=d3e1392-128463

Name:	us-gaap_BusinessCombinationStepAcquisitionEquityInterestInAcquireeRemeasurementGain
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

Amount of increase (decrease) of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 350
-SubTopic 20
-Section 50
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=108376223&loc=d3e13816-109267

Name:	us-gaap_GoodwillPeriodIncreaseDecrease
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	na
Period Type:	duration

Amount of investment in equity method investee and investment in and advance to affiliate.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.12)
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682