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Segment Reporting - Textuals (Details) | 12 Months Ended
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Dec. 31, 2020 state hospital location facility segment
Segment Reporting Information [Line Items] |
Number of operating segments | segment | 2
Number of states in which entity operates | state | 39
Inpatient Rehabilitation |
Segment Reporting Information [Line Items] |
Number of states in which entity operates | state | 35
Number of inpatient rehabilitation hospitals | hospital | 137
Number of solely owned inpatient rehabilitation hospitals | hospital | 87
Number of jointly owned inpatient rehabilitation hospitals | hospital | 50
Number of inpatient rehabilitation units under management contracts | facility | 4
Home health |
Segment Reporting Information [Line Items] |
Number of home health locations | 241
Hospice |
Segment Reporting Information [Line Items] |
Number of hospice locations | 82
Home Health and Hospice |
Segment Reporting Information [Line Items] |
Number of states in which entity operates | state | 31
Number of joint venture agencies accounted for using the equity method | facility | 1
Number of solely owned hospital based home health and hospice locations | 317
Number of jointly owned hospital based home health and hospice locations | 6
Minimum | Inpatient Rehabilitation |
Segment Reporting Information [Line Items] |
Joint venture ownership percentage | 50.00%
Minimum | Home Health and Hospice |
Segment Reporting Information [Line Items] |
Joint venture ownership percentage | 50.00%
Maximum | Inpatient Rehabilitation |
Segment Reporting Information [Line Items] |
Joint venture ownership percentage | 97.50%
Maximum | Home Health and Hospice |
Segment Reporting Information [Line Items] |
Joint venture ownership percentage | 81.00%

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- Definition Joint venture ownership percentage + References No definition available. + Details
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Namespace Prefix: | ehc_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | instant

X
- Definition Total number of inpatient rehabilitation hospitals owned and operated as of the balance sheet date. + References No definition available. + Details
Name: | ehc_NumberOfInpatientRehabilitationHospitals
Namespace Prefix: | ehc_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | instant

X
- Definition Number of inpatient rehabilitation units under management contracts with the Company as of the balance sheet date. + References No definition available. + Details
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Namespace Prefix: | ehc_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | instant

X
- Definition Total number of joint venture agencies accounted for using the equity method. + References No definition available. + Details
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Namespace Prefix: | ehc_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | instant

X
- Definition Number of home health locations the Company owns and operates as of the balance sheet date. + References No definition available. + Details
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Namespace Prefix: | ehc_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | instant

X
- Definition Number of hospice locations the Company owns and operates as of the balance sheet date. + References No definition available. + Details
Name: | ehc_Numberofhospicelocations
Namespace Prefix: | ehc_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | instant

X
- Definition Number of jointly owned hospital based home health and hospice agencies the Company owns and operates as of the balance sheet date. + References No definition available. + Details
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Namespace Prefix: | ehc_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | instant

X
- Definition Total number of jointly owned inpatient rehabilitation hospitals owned and operated as of the balance sheet date. + References No definition available. + Details
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Namespace Prefix: | ehc_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | instant

X
- Definition Number of solely owned hospital based home health and hospice agencies the Company owns and operates as of the balance sheet date. + References No definition available. + Details
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Namespace Prefix: | ehc_
Data Type: | xbrli:integerItemType
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Period Type: | instant

X
- Definition Total number of solely owned inpatient rehabilitation hospitals owned and operated as of the balance sheet date. + References No definition available. + Details
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Namespace Prefix: | ehc_
Data Type: | xbrli:integerItemType
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Period Type: | instant

X
- Definition Number of operating segments. An operating segment is a component of an enterprise: (a) that engages in business activities from which it may earn revenues and incur expenses (including revenues and expenses relating to transactions with other components of the same enterprise), (b) whose operating results are regularly reviewed by the enterprise's chief operating decision maker to make decisions about resources to be allocated to the segment and assess its performance, and (c) for which discrete financial information is available. An operating segment may engage in business activities for which it has yet to earn revenues, for example, start-up operations may be operating segments before earning revenues. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 18 -URI http://asc.fasb.org/extlink&oid=120311839&loc=d3e8672-108599 + Details
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- Definition The number of states the entity operates in as of the balance sheet date. + References No definition available. + Details
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- Definition 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. + References No definition available. + Details
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- Details
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Namespace Prefix: |
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Balance Type: |
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- Details
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Namespace Prefix: |
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- Details
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Namespace Prefix: |
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Balance Type: |
Period Type: |

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- Details
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Period Type: |

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- Details
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