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Condensed Consolidating Financial Information - Textual (Details) | 12 Months Ended
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Dec. 31, 2017
Condensed Financial Information of Parent Company Only Disclosure [Abstract] |
Encompass Health ownership percentage of subsidiary guarantors (percent) | 100.00%
Senior secured leverage ratio maximum | 2
Consolidated coverage ratio minimum | 2

X
- Definition Minimum consolidated coverage ratio to permit the declaration and payment of dividends under senior note indenture. + References No definition available. + Details
Name: | ehc_Consolidatedcoverageratiominimum
Namespace Prefix: | ehc_
Data Type: | xbrli:pureItemType
Balance Type: | na
Period Type: | instant

X
- Definition Max senior secured leverage ratio to permit restricted payments under credit agreement. + References No definition available. + Details
Name: | ehc_DebtInstrumentCovenantLeverageRatioMaximum
Namespace Prefix: | ehc_
Data Type: | xbrli:pureItemType
Balance Type: | na
Period Type: | instant

X
- Definition HealthSouth's ownership percentage in its guarantor subsidiaries. + References No definition available. + Details
Name: | ehc_OwnershipPercentageOfSubsidiaryGuarantors
Namespace Prefix: | ehc_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

X
- References No definition available. + Details
Name: | us-gaap_CondensedFinancialInformationOfParentCompanyOnlyDisclosureAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration