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v3.20.4

Property and Equipment - Textual (Details) | Dec. 31, 2020
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Property, Plant and Equipment [Abstract] |
Percentage of property and equipment, net pledged to lenders under credit agreement (percent) | 72.00%

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- Definition Percentage of assets pledged to lenders under credit agreement. + References No definition available. + Details
Name: | ehc_Percentageofassetspledgedtolendersundercreditagreement
Namespace Prefix: | ehc_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | instant

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