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Schedule III - Real Estate and Accumulated Depreciation-Encumbrances Reconciliation (Details) | Dec. 31, 2024 USD ($) Property
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Total Consolidated Investment in Real Estate [Member] |
Overall summary of real estate and accumulated depreciation |
Encumbrances | $ 1,630,689,805
Archstone Master Property [Member] |
Real Estate and Accumulated Depreciation Encumbrances Reconciliation [Abstract] |
Number of Properties Encumbered | Property | 8
Overall summary of real estate and accumulated depreciation |
Encumbrances | $ 547,116,704
Portfolio Entity Encumbrances [Member] |
Real Estate and Accumulated Depreciation Encumbrances Reconciliation [Abstract] |
Number of Properties Encumbered | Property | 8
Overall summary of real estate and accumulated depreciation |
Encumbrances | $ 547,116,704
Individual Property Encumbrances [Member] |
Overall summary of real estate and accumulated depreciation |
Encumbrances | $ 1,083,573,101

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- Definition Represents the number of rental properties encumbered by a lien or mortgage. + References No definition available. + Details
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Namespace Prefix: | eqr_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | instant

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- Definition Overall summary of real estate and accumulated depreciation. + References No definition available. + Details
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- Definition Real estate and accumulated depreciation encumbrances reconciliation. + References No definition available. + Details
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Data Type: | xbrli:stringItemType
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- Definition Amount of lien or mortgage outstanding on real estate investment properties for entities with a substantial portion of business acquiring and holding investment real estate. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name Regulation S-X (SX) -Number 210 -Section 12 -Subsection 28 -Paragraph Column B -Publisher SEC Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 970 -SubTopic 360 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.12-28(Column B)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147478979/970-360-S99-1 + Details
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- Details
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- Details
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- Details
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