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v3.24.0.1

Segment Information - Schedule of Real Estate (Details) | 12 Months Ended
--- | ---
Dec. 31, 2023 | Dec. 31, 2022 | Dec. 31, 2021
Multifamily |  |  |
Segment Reporting Information [Line Items] |  |  |
Real estate rental revenue as a percentage of total | 0.92 | 0.91 | 0.89
Percentage of total income producing real estate assets | 0.96 | 0.92 |
Other |  |  |
Segment Reporting Information [Line Items] |  |  |
Real estate rental revenue as a percentage of total | 0.08 | 0.09 | 0.11
Percentage of total income producing real estate assets | 0.04 | 0.08 |

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- Definition Percentage of Real Estate Assets + References No definition available. + Details
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Namespace Prefix: | elme_
Data Type: | xbrli:pureItemType
Balance Type: | na
Period Type: | duration

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- Definition Percentage of Real Estate Rental Revenue + References No definition available. + Details
Name: | elme_PercentageOfRealEstateRentalRevenue
Namespace Prefix: | elme_
Data Type: | xbrli:pureItemType
Balance Type: | na
Period Type: | duration

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

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- Details
Name: | us-gaap_StatementBusinessSegmentsAxis=elme_MultifamilySegmentMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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- Details
Name: | us-gaap_StatementBusinessSegmentsAxis=us-gaap_CorporateAndOtherMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |