XML 34 R61.htm IDEA: XBRL DOCUMENT v2.4.1.9

Subsequent Events/Other (Details) (USD $)	1 Months Ended	3 Months Ended
	Apr. 30, 2015	Mar. 31, 2015	Mar. 31, 2014
Subsequent Event [Line Items]
Properties acquired	1eqr_PropertiesAcquired	0eqr_PropertiesAcquired
Property Units Acquired	202eqr_PropertyUnitsAcquired	0eqr_PropertyUnitsAcquired
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Assets	$ 130,300,000us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedAssets	$ 5,968,000us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedAssets
Disposed Properties	1eqr_DisposedProperties	3eqr_DisposedProperties
Disposed Units	314eqr_DisposedUnits	550eqr_DisposedUnits
Proceeds From Sale Of Property	49,600,000eqr_ProceedsFromSaleOfProperty	145,400,000eqr_ProceedsFromSaleOfProperty
Repayments of Notes Payable	300,000,000us-gaap_RepaymentsOfNotesPayable
Debt Instrument, Interest Rate, Stated Percentage	6.584%us-gaap_DebtInstrumentInterestRateStatedPercentage
Business Combination, Acquisition Related Costs		100,000us-gaap_BusinessCombinationAcquisitionRelatedCosts
Noncash Project Abandonment Costs		493,000us-gaap_NoncashProjectAbandonmentCosts	452,000us-gaap_NoncashProjectAbandonmentCosts
Other Expenses		600,000us-gaap_OtherExpenses	500,000us-gaap_OtherExpenses
Employee Benefits and Share-based Compensation		2,300,000us-gaap_EmployeeBenefitsAndShareBasedCompensation
Owned Property Management Costs		21,444,000us-gaap_OwnedPropertyManagementCosts	22,118,000us-gaap_OwnedPropertyManagementCosts
General and administrative/other		19,922,000us-gaap_GeneralAndAdministrativeExpense	17,576,000us-gaap_GeneralAndAdministrativeExpense
Litigation Settlement, Amount			500,000us-gaap_LitigationSettlementAmount
Consolidated Rental Properties [Member]
Subsequent Event [Line Items]
Disposed Properties		3eqr_DisposedProperties / us-gaap_SignificantAcquisitionsAndDisposalsByTransactionAxis = eqr_ConsolidatedRentalPropertiesMember
Disposed Units		550eqr_DisposedUnits / us-gaap_SignificantAcquisitionsAndDisposalsByTransactionAxis = eqr_ConsolidatedRentalPropertiesMember
Proceeds From Sale Of Property		145,400,000eqr_ProceedsFromSaleOfProperty / us-gaap_SignificantAcquisitionsAndDisposalsByTransactionAxis = eqr_ConsolidatedRentalPropertiesMember
Retail Site [Member]
Subsequent Event [Line Items]
Proceeds From Sale Of Property	123,300,000eqr_ProceedsFromSaleOfProperty / us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsAxis = us-gaap_RetailSiteMember
Stock Compensation Plan [Member]
Subsequent Event [Line Items]
Owned Property Management Costs		300,000us-gaap_OwnedPropertyManagementCosts / us-gaap_StatementEquityComponentsAxis = us-gaap_StockCompensationPlanMember
General and administrative/other		$ 2,000,000us-gaap_GeneralAndAdministrativeExpense / us-gaap_StatementEquityComponentsAxis = us-gaap_StockCompensationPlanMember

X

- Definition

The total number of rental properties that the Company disposed of to unaffiliated parties during the period.

+ References

No definition available.

+ Details

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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

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Namespace Prefix:	eqr_
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X

- Definition

The cash inflow from the sale of real estate investment property.

+ References

No definition available.

+ Details

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X

- Definition

Total number of property or properties acquired from unaffiliated third parties during the period.

+ References

No definition available.

+ Details

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X

- Definition

Total number of units associated with the property or properties acquired from unaffiliated third parties during the period.

+ References

No definition available.

+ Details

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X

- Definition

This element represents acquisition-related costs incurred to effect a business combination which costs have been expensed during the period. Such costs include finder's fees; advisory, legal, accounting, valuation, and other professional or consulting fees; general administrative costs, including the costs of maintaining an internal acquisitions department; and may include costs of registering and issuing debt and equity securities.

+ References

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-Publisher FASB

-Name Accounting Standards Codification

-Topic 805

-SubTopic 10

-Section 25

-Paragraph 23

-URI http://asc.fasb.org/extlink&oid=34752592&loc=d3e1043-128460

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X

- Definition

Amount of assets acquired at the acquisition date.

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-Name Accounting Standards Codification

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-SubTopic 20

-Section 50

-Paragraph 1

-Subparagraph (c)

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- Definition

Contractual interest rate for funds borrowed, under the debt agreement.

+ References

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-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 02

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-Subparagraph (SX 210.5-02.22(a)(1))

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X

- Definition

Costs and payments related to employee benefits and equity-based compensation, such as pension expense and contributions, other postretirement benefits expense and payments, stock or unit options expense, and amortization of restricted stock or unit.

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-Paragraph 28

-Subparagraph (a)

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- Definition

The aggregate total of expenses of managing and administering the affairs of an entity, including affiliates of the reporting entity, which are not directly or indirectly associated with the manufacture, sale or creation of a product or product line.

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- Definition

Amount of judgment or settlement awarded to (against) the entity in respect of litigation.

+ References

No definition available.

+ Details

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- Definition

The expense charged against earnings to eliminate the capitalized costs of projects that have been terminated during the reporting period, which is added back to net income when calculating cash provided by (used in) operations using the indirect method.

+ References

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- Definition

This element represents a sum total of expenses not separately reflected on the income statement for the period.

+ References

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-Publisher SEC

-Name Regulation S-X (SX)

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- Definition

The aggregate costs related to management of owned properties during the reporting period.

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- Definition

The cash outflow for a borrowing supported by a written promise to pay an obligation.

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-Glossary Financing Activities

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