XML 71 R55.htm IDEA: XBRL DOCUMENT
v3.22.2.2

Real Estate - Disposed Properties to Unaffiliated Parties (Details) $ in Thousands | 9 Months Ended
--- | ---
Sep. 30, 2022 USD ($) ApartmentUnit Property
Properties disposed | Property | 3
Property Units disposed | ApartmentUnit | 945
Sales Price | $ | $ 746,150
Rental Properties - Consolidated [Member] |
Properties disposed | Property | 3
Property Units disposed | ApartmentUnit | 945
Sales Price | $ | $ 746,150

X
- Definition The total number of rental properties that the Company disposed of to unaffiliated parties during the period. + References No definition available. + Details
Name: | eqr_DisposedProperties
Namespace Prefix: | eqr_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | duration

X
- Definition Total number of rental units associated with rental properties that the company disposed of to unaffiliated third parties during the period. + References No definition available. + Details
Name: | eqr_DisposedUnits
Namespace Prefix: | eqr_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | duration

X
- Definition The cash inflow from the sale of real estate investment property. + References No definition available. + Details
Name: | eqr_ProceedsFromSaleOfProperty
Namespace Prefix: | eqr_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Details
Name: | us-gaap_PropertyPlantAndEquipmentByTypeAxis=eqr_ConsolidatedRentalPropertiesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |