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Commitments to Acquire/Dispose of Real Estate (Tables) | 6 Months Ended
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Jun. 30, 2016
Commitments to Acquire Dispose of Real Estate [Abstract] |
Real Estate To Be Disposed Of Text Block | In addition to the properties and land parcel that were subsequently disposed of as discussed in Note 14, the Company has entered into separate agreements to dispose of the following (sales price in thousands):
|  | Properties |  | Apartment Units |  | Sales Price
Rental Properties |  | 9 |  |  | 1,344 |  |  | $ | 191,680 |
Land Parcels (two) |  | — |  |  | — |  |  | 36,150 |
Total |  | 9 |  |  | 1,344 |  |  | $ | 227,830 |

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- Definition Commitments to Acquire/Dispose of Real Estate. + References No definition available. + Details
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Namespace Prefix: | eqr_
Data Type: | xbrli:stringItemType
Balance Type: | na
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- Definition Breakdown of rental properties, units and land parcels to be disposed of subsequent to the balance sheet date per separate agreements entered into prior to the balance sheet date. + References No definition available. + Details
Name: | eqr_RealEstateToBeDisposedOfTableTextBlock
Namespace Prefix: | eqr_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration