ESS


Line plots across dimensions of each concept
Line plots across concepts
Tables

Table of contents



us-gaap:CommonStockValue
us-gaap:StatementEquityComponents
us-gaap:SharesIssued

us-gaap:WeightedAverageNumberOfDilutedSharesOutstanding
dei:LegalEntity

us-gaap:WeightedAverageNumberOfSharesOutstandingBasic
dei:LegalEntity
dei:LegalEntity, us-gaap:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecurities
us-gaap:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount
us-gaap:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecurities

us-gaap:EarningsPerShareBasic
dei:LegalEntity

us-gaap:EarningsPerShareDiluted
dei:LegalEntity

us-gaap:ComprehensiveIncomeNetOfTax
dei:LegalEntity

us-gaap:ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest
dei:LegalEntity

us-gaap:ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest
dei:LegalEntity
us-gaap:ScheduleOfEquityMethodInvestmentEquityMethodInvesteeName, us-gaap:EquityMethodInvestmentNonconsolidatedInvestee
us-gaap:CostOfRevenue

us-gaap:CostsAndExpenses
dei:LegalEntity

us-gaap:GainsLossesOnExtinguishmentOfDebt
dei:LegalEntity

us-gaap:GeneralAndAdministrativeExpense
dei:LegalEntity
us-gaap:ScheduleOfEquityMethodInvestmentEquityMethodInvesteeName, us-gaap:EquityMethodInvestmentNonconsolidatedInvestee
us-gaap:ScheduleOfEquityMethodInvestmentEquityMethodInvesteeName, us-gaap:EquityMethodInvestmentNonconsolidatedInvestee
us-gaap:GrossProfit

us-gaap:IncomeLossFromContinuingOperations
dei:LegalEntity

us-gaap:InterestExpense
dei:LegalEntity
us-gaap:ScheduleOfEquityMethodInvestmentEquityMethodInvesteeName, us-gaap:EquityMethodInvestmentNonconsolidatedInvestee

us-gaap:InterestPaidNet
dei:LegalEntity

us-gaap:NetIncomeLossAttributableToNoncontrollingInterest
dei:LegalEntity

us-gaap:NetIncomeLossAvailableToCommonStockholdersBasic
dei:LegalEntity

us-gaap:OperatingIncomeLoss
dei:LegalEntity

us-gaap:OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationAndTax
dei:LegalEntity
dei:LegalEntity, us-gaap:PartnerCapitalComponents
us-gaap:StatementEquityComponents
dei:LegalEntity, us-gaap:PartnerCapitalComponents
us-gaap:OtherComprehensiveIncomeLossNetOfTax
dei:LegalEntity, us-gaap:StatementEquityComponents
us-gaap:StatementEquityComponents

us-gaap:ProfitLoss
dei:LegalEntity
dei:LegalEntity, us-gaap:PartnerCapitalComponents
dei:LegalEntity, us-gaap:PartnerCapitalComponents, us-gaap:PartnerTypeOfPartnersCapitalAccount
us-gaap:ScheduleOfEquityMethodInvestmentEquityMethodInvesteeName, us-gaap:EquityMethodInvestmentNonconsolidatedInvestee
us-gaap:StatementEquityComponents

us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax
dei:LegalEntity
us-gaap:InvestmentType
us-gaap:InvestmentType, us-gaap:SubsequentEventType
us-gaap:ConsolidationItems, us-gaap:ProductOrService
us-gaap:RevenueFromContractWithCustomerIncludingAssessedTax
us-gaap:ConsolidationItems, us-gaap:ProductOrService, us-gaap:StatementBusinessSegments
us-gaap:ProductOrService

us-gaap:Revenues
dei:LegalEntity
us-gaap:ScheduleOfEquityMethodInvestmentEquityMethodInvesteeName, us-gaap:EquityMethodInvestmentNonconsolidatedInvestee

us-gaap:Assets
dei:LegalEntity
us-gaap:EquityMethodInvestmentNonconsolidatedInvestee
us-gaap:ScheduleOfEquityMethodInvestmentEquityMethodInvesteeName, us-gaap:EquityMethodInvestmentNonconsolidatedInvestee

us-gaap:Liabilities
dei:LegalEntity
us-gaap:EquityMethodInvestmentNonconsolidatedInvestee
us-gaap:ScheduleOfEquityMethodInvestmentEquityMethodInvesteeName, us-gaap:EquityMethodInvestmentNonconsolidatedInvestee

us-gaap:LiabilitiesAndStockholdersEquity
dei:LegalEntity
us-gaap:EquityMethodInvestmentNonconsolidatedInvestee
us-gaap:ScheduleOfEquityMethodInvestmentEquityMethodInvesteeName, us-gaap:EquityMethodInvestmentNonconsolidatedInvestee

us-gaap:StockholdersEquity
dei:LegalEntity, us-gaap:StatementEquityComponents
us-gaap:StatementEquityComponents

us-gaap:CashAndCashEquivalentsAtCarryingValue
dei:LegalEntity

us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents
dei:LegalEntity

us-gaap:InvestmentsInAffiliatesSubsidiariesAssociatesAndJointVentures

us-gaap:FiniteLivedIntangibleAssetsNet

us-gaap:OperatingLeaseRightOfUseAsset
dei:LegalEntity
us-gaap:BalanceSheetLocation

us-gaap:EquitySecuritiesFvNi
us-gaap:FinancialInstrument
us-gaap:EquityMethodInvestmentNonconsolidatedInvestee
us-gaap:OtherAssets
us-gaap:ScheduleOfEquityMethodInvestmentEquityMethodInvesteeName, us-gaap:EquityMethodInvestmentNonconsolidatedInvestee

us-gaap:LongTermDebt
us-gaap:LongtermDebtType

us-gaap:MinorityInterest
dei:LegalEntity

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearTwo

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearThree

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearFour

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearFive

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive

us-gaap:OperatingLeaseLiability
dei:LegalEntity
us-gaap:BalanceSheetLocation

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDue

us-gaap:LesseeOperatingLeaseLiabilityUndiscountedExcessAmount

us-gaap:StockholdersEquity
dei:LegalEntity, us-gaap:StatementEquityComponents
us-gaap:StatementEquityComponents

us-gaap:StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest
dei:LegalEntity, us-gaap:PartnerCapitalComponents
dei:LegalEntity, us-gaap:StatementEquityComponents
us-gaap:EquityMethodInvestmentNonconsolidatedInvestee
us-gaap:ScheduleOfEquityMethodInvestmentEquityMethodInvesteeName, us-gaap:EquityMethodInvestmentNonconsolidatedInvestee
us-gaap:StatementEquityComponents

us-gaap:CommonStockValue

us-gaap:AdditionalPaidInCapital

us-gaap:AccumulatedOtherComprehensiveIncomeLossNetOfTax
dei:LegalEntity

us-gaap:MinorityInterest
dei:LegalEntity

us-gaap:StockIssuedDuringPeriodValueNewIssues
dei:LegalEntity
dei:LegalEntity, us-gaap:PartnerCapitalComponents, us-gaap:PartnerTypeOfPartnersCapitalAccount
us-gaap:StatementEquityComponents

us-gaap:AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue
us-gaap:StatementEquityComponents

us-gaap:MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders
dei:LegalEntity
dei:LegalEntity, us-gaap:PartnerCapitalComponents
us-gaap:StatementEquityComponents

us-gaap:NetCashProvidedByUsedInOperatingActivities
dei:LegalEntity

us-gaap:NetCashProvidedByUsedInInvestingActivities
dei:LegalEntity

us-gaap:NetCashProvidedByUsedInFinancingActivities
dei:LegalEntity

us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect
dei:LegalEntity

us-gaap:NetCashProvidedByUsedInOperatingActivities
dei:LegalEntity

us-gaap:ProfitLoss
dei:LegalEntity
dei:LegalEntity, us-gaap:PartnerCapitalComponents
dei:LegalEntity, us-gaap:PartnerCapitalComponents, us-gaap:PartnerTypeOfPartnersCapitalAccount
us-gaap:ScheduleOfEquityMethodInvestmentEquityMethodInvesteeName, us-gaap:EquityMethodInvestmentNonconsolidatedInvestee
us-gaap:StatementEquityComponents

us-gaap:ShareBasedCompensation
dei:LegalEntity

us-gaap:NetCashProvidedByUsedInInvestingActivities
dei:LegalEntity

us-gaap:PaymentsToAcquireRealEstate
dei:LegalEntity

us-gaap:NetCashProvidedByUsedInFinancingActivities
dei:LegalEntity

us-gaap:ProceedsFromIssuanceOfLongTermDebt
dei:LegalEntity

us-gaap:RepaymentsOfLongTermDebt
dei:LegalEntity

us-gaap:PaymentsForRepurchaseOfCommonStock
dei:LegalEntity
us-gaap:LongtermDebtType
us-gaap:DebtInstrumentInterestRateStatedPercentage
us-gaap:LongtermDebtType, us-gaap:SubsequentEventType

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice

ess:CapitalizedInternalCostsRelatedToDevelopmentAndRedevelopmentProjects

ess:CompanysShareOfGainOnSalesOfRealEstate
dei:LegalEntity

ess:CorporatePropertyManagementExpenses
dei:LegalEntity
us-gaap:ScheduleOfEquityMethodInvestmentEquityMethodInvesteeName
ess:EquityMethodInvestmentEarlyRedemptionFeeReceived
us-gaap:ScheduleOfEquityMethodInvestmentEquityMethodInvesteeName
ess:EquityMethodInvestmentsEarlyRedemptionFeeReceived
us-gaap:ScheduleOfEquityMethodInvestmentEquityMethodInvesteeName, us-gaap:InvestmentType
ess:EquityMethodInvestmentsOwnershipPercentageAcquired

ess:EquityMethodInvestmentsPreferredReturnsRate
us-gaap:SubsequentEventType

ess:GainLossFromEquityMethodInvestments
dei:LegalEntity

ess:GainOnRemeasurementOfCoInvestment
dei:LegalEntity
us-gaap:ScheduleOfEquityMethodInvestmentEquityMethodInvesteeName, us-gaap:InvestmentType
dei:LegalEntity, us-gaap:ConsolidatedEntities, us-gaap:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecurities
ess:IncomeEffectOfDilutiveSecurities
us-gaap:ConsolidatedEntities, us-gaap:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecurities

ess:IncomeFromContinuingOperationsAvailableToCommonStockholders1
dei:LegalEntity

ess:IncrementalCommonSharesAttributableToDilutiveEffectOfConversionOfUnits
dei:LegalEntity

ess:InterestAndOtherIncomeExpense
dei:LegalEntity
us-gaap:ScheduleOfEquityMethodInvestmentEquityMethodInvesteeName
ess:LimitedPartnershipInterestInPartnershipInvestments
us-gaap:RelatedPartyTransactionsByRelatedParty
ess:ManagementAndOtherFeesFromAffiliates

ess:NetOperatingIncomeFromSegments
us-gaap:ConsolidationItems
us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments

ess:NoncontrollingInterestResetOfPriorYearRedemptions
us-gaap:AccountsNotesLoansAndFinancingReceivableByReceivableType
ess:NotesReceivableEarlyRedemptionFeeReceived
us-gaap:MortgageLoansOnRealEstateDescriptionTypeOfProperty, us-gaap:ScheduleOfEquityMethodInvestmentEquityMethodInvesteeName, us-gaap:SubsequentEventType
ess:NumberOfUnitsHeldByEquityMethodInvestment
dei:LegalEntity
ess:PartnersCapitalAccountStockAndUnitBasedCompensationCosts
dei:LegalEntity, us-gaap:PartnerCapitalComponents, us-gaap:PartnerTypeOfPartnersCapitalAccount
dei:LegalEntity
ess:PartnersCapitalAccountStockAndUnitBasedCompensationPlans
dei:LegalEntity, us-gaap:PartnerCapitalComponents, us-gaap:PartnerTypeOfPartnersCapitalAccount
dei:LegalEntity, us-gaap:PartnerCapitalComponents, us-gaap:PartnerTypeOfPartnersCapitalAccount
ess:PartnersCapitalAccountUnitsStockAndUnitBasedCompensationPlan
dei:LegalEntity, us-gaap:PartnerCapitalComponents, us-gaap:PartnerTypeOfPartnersCapitalAccount
ess:PartnersCapitalAccountUnitsStockandunitbasedcompensationcosts

ess:PaymentsForProceedsFromSalesAndMaturitiesOfMarketableSecurities
dei:LegalEntity

ess:ReclassificationFromToRedeemableNoncontrollingInterest
dei:LegalEntity

ess:RedemptionsOfNoncontrollingInterest
dei:LegalEntity
dei:LegalEntity, us-gaap:PartnerCapitalComponents
dei:LegalEntity, us-gaap:PartnerCapitalComponents, us-gaap:PartnerTypeOfPartnersCapitalAccount
us-gaap:StatementEquityComponents
dei:LegalEntity, us-gaap:PartnerCapitalComponents, us-gaap:PartnerTypeOfPartnersCapitalAccount
ess:RedemptionsOfNoncontrollingInterestShares
us-gaap:StatementEquityComponents

ess:RedevelopmentExpenditures
dei:LegalEntity
us-gaap:RelatedPartyTransactionsByRelatedParty
ess:RelatedPartyTransactionRevenuesfromDevelopmentandRedevelopmentFees

ess:RevenueGeneratingCapitalExpenditures
dei:LegalEntity

ess:StockOptionAndRestrictedStockPlans
us-gaap:StatementEquityComponents
us-gaap:StatementEquityComponents
ess:StockOptionAndRestrictedStockPlansShares

ess:TransferFromRealEstateUnderDevelopmentToCoInvestments
dei:LegalEntity

ess:TransferFromRealEstateUnderDevelopmentToRentalProperties
dei:LegalEntity

us-gaap:AmortizationOfDebtDiscountPremium
dei:LegalEntity

us-gaap:BusinessCombinationAcquisitionRelatedCosts
dei:LegalEntity
us-gaap:ScheduleOfEquityMethodInvestmentEquityMethodInvesteeName, us-gaap:InvestmentType
us-gaap:BusinessCombinationConsiderationTransferred1

us-gaap:ContractWithCustomerLiabilityRevenueRecognized

us-gaap:CostOfOtherPropertyOperatingExpense
dei:LegalEntity

us-gaap:DeferredOtherTaxExpenseBenefit
dei:LegalEntity

us-gaap:Depreciation
dei:LegalEntity

us-gaap:DepreciationAndAmortization
dei:LegalEntity

us-gaap:DerivativeGainOnDerivative
dei:LegalEntity
us-gaap:DerivativeInstrumentRisk

us-gaap:DividendsCommonStock
us-gaap:StatementEquityComponents

us-gaap:EquityMethodInvestmentDividendsOrDistributions
dei:LegalEntity

us-gaap:EquitySecuritiesFvNiUnrealizedGainLoss
dei:LegalEntity
us-gaap:FinancialInstrument
us-gaap:IncomeStatementLocation

us-gaap:GainLossOnSaleOfInvestments
dei:LegalEntity
us-gaap:InvestmentType
us-gaap:GainLossOnSaleOfProperties

us-gaap:GainsLossesOnSalesOfInvestmentRealEstate
dei:LegalEntity
us-gaap:ScheduleOfEquityMethodInvestmentEquityMethodInvesteeName, us-gaap:EquityMethodInvestmentNonconsolidatedInvestee
us-gaap:IncomeLossAttributableToParent
us-gaap:ScheduleOfEquityMethodInvestmentEquityMethodInvesteeName, us-gaap:RelatedPartyTransactionsByRelatedParty

us-gaap:IncomeLossFromEquityMethodInvestments
dei:LegalEntity

us-gaap:IncreaseDecreaseInOtherAccountsPayableAndAccruedLiabilities
dei:LegalEntity

us-gaap:IncreaseDecreaseInOtherOperatingLiabilities
dei:LegalEntity

us-gaap:IncreaseDecreaseInOtherReceivables
dei:LegalEntity

us-gaap:IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets
dei:LegalEntity

us-gaap:IncreaseDecreaseInRestrictedCashAndInvestmentsForOperatingActivities
dei:LegalEntity

us-gaap:IncrementalCommonSharesAttributableToShareBasedPaymentArrangements
dei:LegalEntity

us-gaap:InterestAndOtherIncome
dei:LegalEntity

us-gaap:InterestPaidCapitalized
dei:LegalEntity

us-gaap:InvestmentIncomeAmortizationOfDiscount
dei:LegalEntity
us-gaap:Ownership
us-gaap:LimitedLiabilityCompanyLLCOrLimitedPartnershipLPManagingMemberOrGeneralPartnerOwnershipInterest

us-gaap:MarketableSecuritiesRealizedGainLoss

us-gaap:MinorityInterestChangeInRedemptionValue
dei:LegalEntity
dei:LegalEntity, us-gaap:PartnerCapitalComponents
dei:LegalEntity, us-gaap:PartnerCapitalComponents, us-gaap:PartnerTypeOfPartnersCapitalAccount
us-gaap:StatementEquityComponents

us-gaap:NoncontrollingInterestIncreaseFromBusinessCombination
dei:LegalEntity
dei:LegalEntity, us-gaap:PartnerCapitalComponents
us-gaap:StatementEquityComponents

us-gaap:NoncontrollingInterestIncreaseFromSubsidiaryEquityIssuance
dei:LegalEntity
dei:LegalEntity, us-gaap:PartnerCapitalComponents
us-gaap:StatementEquityComponents

us-gaap:OperatingLeaseLeaseIncome
dei:LegalEntity
us-gaap:ConsolidationItems, us-gaap:ProductOrService
us-gaap:ConsolidationItems, us-gaap:ProductOrService, us-gaap:StatementBusinessSegments
us-gaap:MortgageLoansOnRealEstateDescriptionTypeOfProperty, us-gaap:ProductOrService
us-gaap:ProductOrService

us-gaap:OperatingLeasePayments
dei:LegalEntity
dei:LegalEntity, us-gaap:PartnerCapitalComponents
us-gaap:OtherComprehensiveIncomeLossBeforeReclassificationsNetOfTax
dei:LegalEntity, us-gaap:StatementEquityComponents
us-gaap:StatementEquityComponents

us-gaap:OtherComprehensiveIncomeLossCashFlowHedgeGainLossReclassificationAfterTax
dei:LegalEntity
dei:LegalEntity, us-gaap:PartnerCapitalComponents
us-gaap:StatementEquityComponents

us-gaap:OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax
dei:LegalEntity
dei:LegalEntity, us-gaap:PartnerCapitalComponents
us-gaap:StatementEquityComponents
us-gaap:ScheduleOfEquityMethodInvestmentEquityMethodInvesteeName, us-gaap:EquityMethodInvestmentNonconsolidatedInvestee
us-gaap:OtherDepreciationAndAmortization
dei:LegalEntity
us-gaap:PartnersCapitalAccountDistributions
dei:LegalEntity, us-gaap:PartnerCapitalComponents, us-gaap:PartnerTypeOfPartnersCapitalAccount

us-gaap:PaymentOfFinancingAndStockIssuanceCosts
dei:LegalEntity

us-gaap:PaymentsOfDebtExtinguishmentCosts
dei:LegalEntity
us-gaap:DebtInstrument, us-gaap:LongtermDebtType

us-gaap:PaymentsOfDistributionsToAffiliates
dei:LegalEntity

us-gaap:PaymentsOfOrdinaryDividends
dei:LegalEntity

us-gaap:PaymentsRelatedToTaxWithholdingForShareBasedCompensation
dei:LegalEntity

us-gaap:PaymentsToAcquireEquityMethodInvestments
dei:LegalEntity

us-gaap:PaymentsToAcquireMarketableSecurities
dei:LegalEntity

us-gaap:PaymentsToAcquireNotesReceivable
dei:LegalEntity
us-gaap:RealEstateAndAccumulatedDepreciationDescriptionOfProperty

us-gaap:PaymentsToDevelopRealEstateAssets
dei:LegalEntity

us-gaap:PaymentsToMinorityShareholders
dei:LegalEntity
us-gaap:AccountsNotesLoansAndFinancingReceivableByReceivableType
us-gaap:ProceedsFromCollectionOfNotesReceivable

us-gaap:ProceedsFromContributionsFromAffiliates
dei:LegalEntity

us-gaap:ProceedsFromEquityMethodInvestmentDividendsOrDistributionsReturnOfCapital
dei:LegalEntity

us-gaap:ProceedsFromInsuranceSettlementInvestingActivities
dei:LegalEntity

us-gaap:ProceedsFromIssuanceOfCommonStock
dei:LegalEntity

us-gaap:ProceedsFromLinesOfCredit
dei:LegalEntity

us-gaap:ProceedsFromSaleAndCollectionOfReceivables
dei:LegalEntity

us-gaap:ProceedsFromSaleAndMaturityOfMarketableSecurities
us-gaap:ScheduleOfEquityMethodInvestmentEquityMethodInvesteeName
us-gaap:ProceedsFromSaleOfEquityMethodInvestments

us-gaap:ProceedsFromSaleOfRealEstateHeldforinvestment
dei:LegalEntity

us-gaap:ProceedsFromStockOptionsExercised
dei:LegalEntity

us-gaap:ProvisionForLoanLeaseAndOtherLosses
dei:LegalEntity
us-gaap:AccountsNotesLoansAndFinancingReceivableByReceivableType

us-gaap:RealEstateTaxExpense
dei:LegalEntity
dei:LegalEntity, us-gaap:PartnerCapitalComponents
us-gaap:ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTax
dei:LegalEntity, us-gaap:StatementEquityComponents
us-gaap:StatementEquityComponents
us-gaap:InvestmentType
us-gaap:RepaymentsOfDebt
us-gaap:ScheduleOfEquityMethodInvestmentEquityMethodInvesteeName, us-gaap:InvestmentType

us-gaap:RepaymentsOfLinesOfCredit
dei:LegalEntity
us-gaap:LongtermDebtType, us-gaap:SubsequentEventType
us-gaap:RepaymentsOfUnsecuredDebt
us-gaap:CounterpartyName, us-gaap:RelatedPartyTransactionsByRelatedParty
us-gaap:SalesCommissionsAndFees
us-gaap:StatementEquityComponents
us-gaap:StockRepurchasedDuringPeriodValue

us-gaap:StraightLineRent
dei:LegalEntity

us-gaap:TreasuryStockRetiredParValueMethodAmount
dei:LegalEntity
dei:LegalEntity, us-gaap:PartnerCapitalComponents, us-gaap:PartnerTypeOfPartnersCapitalAccount
us-gaap:StatementEquityComponents
dei:LegalEntity, us-gaap:PartnerCapitalComponents, us-gaap:PartnerTypeOfPartnersCapitalAccount
us-gaap:TreasuryStockSharesRetired
us-gaap:StatementEquityComponents
us-gaap:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecurities
us-gaap:UndistributedEarningsLossAllocatedToParticipatingSecuritiesBasic

ess:AssetsRelatedToVariableInterestEntitiesNetIntercompanyEliminations
us-gaap:LongtermDebtType
ess:BondSubjectToInterestRateCaps
us-gaap:EquityMethodInvestmentNonconsolidatedInvestee
ess:CompanyShareOfEquity
us-gaap:ScheduleOfEquityMethodInvestmentEquityMethodInvesteeName, us-gaap:EquityMethodInvestmentNonconsolidatedInvestee

ess:DistributionsInExcessOfAccumulatedEarnings
us-gaap:InvestmentType
ess:EquityMethodInvestmentCommitmentToFundFundedAmount
us-gaap:ScheduleOfEquityMethodInvestmentEquityMethodInvesteeName
ess:EstimatedCostActiveDevelopmentProjects

ess:FixedRateDebtCarryingAmount

ess:FixedRateDebtFairValue

ess:InvestmentsInDistributionsInExcessOfInvestmentsInAndAdvanceToAffiliatesSubsidiariesAssociatesAndJointVentures
us-gaap:ScheduleOfEquityMethodInvestmentEquityMethodInvesteeName
us-gaap:ScheduleOfEquityMethodInvestmentEquityMethodInvesteeName, us-gaap:RelatedPartyTransactionsByRelatedParty

ess:LeaseLiability

ess:LeaseRightOfUseAsset

ess:LiabilitiesAssociatedWithRealEstateHeldForSale
dei:LegalEntity

ess:LiabilitiesRelatedToVariableInterestEntitiesNetOfIntercompanyEliminations

ess:LongTermDebtMaturitiesRepaymentsOfPrincipalAfterYearFour

ess:MarketableSecuritiesAccumulatedGrossUnrealizedGainLossBeforeTax

ess:MarketableSecuritiesAfterAllowanceForCreditLoss
dei:LegalEntity

ess:MarketableSecuritiesAllowanceForCreditLoss
dei:LegalEntity
us-gaap:AccountsNotesLoansAndFinancingReceivableByReceivableType

ess:MarketableSecuritiesAmortizedCost

ess:NoncontrollingInterestOperatingPartnership

ess:PreferredEquityInvestmentCommitmentToFund
us-gaap:SubsequentEventType

ess:RealEstateDevelopmentInProcess
dei:LegalEntity
us-gaap:ScheduleOfEquityMethodInvestmentEquityMethodInvesteeName, us-gaap:EquityMethodInvestmentNonconsolidatedInvestee

ess:RedeemableNoncontrollingInterestEquityCarryingAmountVariableInterestEntities

ess:RedemptionValueOfOperatingPartnershipUnitsOutstanding
dei:LegalEntity

ess:RedemptionValueOfVariableInterestEntities

ess:TotalRealEstateNet
dei:LegalEntity

ess:UnsecuredDebtAndLineOfCredit

ess:VariableRateDebtCarryingAmount

ess:VariableRateDebtFairValue

srt:RealEstateAndAccumulatedDepreciationAmountOfEncumbrances
us-gaap:MortgageLoansOnRealEstateDescriptionTypeOfProperty
us-gaap:MortgageLoansOnRealEstateDescriptionTypeOfProperty, us-gaap:RealEstateAndAccumulatedDepreciationDescriptionOfProperty

us-gaap:AccountsPayableAndAccruedLiabilitiesCurrentAndNoncurrent
dei:LegalEntity
us-gaap:FinancialInstrument
us-gaap:AvailableForSaleDebtSecuritiesAmortizedCostBasis
us-gaap:FinancialInstrument
us-gaap:AvailableForSaleSecuritiesDebtSecurities

us-gaap:CashCashEquivalentsAndShortTermInvestments

us-gaap:ConstructionPayableCurrentAndNoncurrent
dei:LegalEntity

us-gaap:ContractWithCustomerLiability
us-gaap:DebtInstrument, us-gaap:LongtermDebtType
us-gaap:DebtInstrumentCarryingAmount
us-gaap:LongtermDebtType
us-gaap:DebtInstrumentUnamortizedDiscountPremiumNet
us-gaap:LongtermDebtType
us-gaap:DebtInstrumentUnamortizedPremium
us-gaap:FinancialInstrument
us-gaap:DebtSecuritiesAvailableForSaleAccumulatedGrossUnrealizedGainLossBeforeTax
us-gaap:FinancialInstrument
us-gaap:DebtSecuritiesAvailableForSaleExcludingAccruedInterest
us-gaap:FinancialInstrument
us-gaap:DebtSecuritiesHeldToMaturityAllowanceForCreditLoss

us-gaap:DebtWeightedAverageInterestRate
us-gaap:DerivativeInstrumentRisk, us-gaap:HedgingDesignation
us-gaap:DerivativeAssetFairValueGrossLiability
us-gaap:DerivativeInstrumentRisk, us-gaap:HedgingDesignation
us-gaap:DerivativeAverageFixedInterestRate
us-gaap:DerivativeInstrumentRisk, us-gaap:HedgingDesignation
us-gaap:DerivativeFairValueOfDerivativeAssetAmountNotOffsetAgainstCollateral
us-gaap:DerivativeInstrumentRisk, us-gaap:HedgingDesignation
us-gaap:DerivativeFairValueOfDerivativeLiability
us-gaap:DerivativeInstrumentRisk, us-gaap:HedgingDesignation
us-gaap:DerivativeFairValueOfDerivativeNet
us-gaap:DerivativeInstrumentRisk, us-gaap:HedgingDesignation
us-gaap:DerivativeNotionalAmount
us-gaap:DerivativeInstrumentRisk, us-gaap:HedgingDesignation, us-gaap:LongtermDebtType
us-gaap:LongtermDebtType

us-gaap:DevelopmentInProcess
dei:LegalEntity
us-gaap:EquityMethodInvestmentNonconsolidatedInvestee

us-gaap:DividendsPayableCurrentAndNoncurrent
dei:LegalEntity
us-gaap:RelatedPartyTransactionsByRelatedParty
us-gaap:DueFromAffiliates

us-gaap:DueFromRelatedParties
dei:LegalEntity
us-gaap:AwardType
us-gaap:EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized
us-gaap:FinancialInstrument
us-gaap:EquitySecuritiesFvNiCost

us-gaap:FinancingReceivableAllowanceForCreditLosses
dei:LegalEntity
us-gaap:AccountsNotesLoansAndFinancingReceivableByReceivableType
dei:LegalEntity
us-gaap:GeneralPartnersCapitalAccount
dei:LegalEntity, us-gaap:PartnerCapitalComponents, us-gaap:PartnerTypeOfPartnersCapitalAccount
dei:LegalEntity, us-gaap:PartnerTypeOfPartnersCapitalAccount
us-gaap:FinancialInstrument
us-gaap:HeldToMaturitySecurities
us-gaap:FinancialInstrument
us-gaap:HeldToMaturitySecuritiesFairValue

us-gaap:InvestmentBuildingAndBuildingImprovements
dei:LegalEntity
dei:LegalEntity
us-gaap:InvestmentsAndCash

us-gaap:LandAndLandImprovements
dei:LegalEntity

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths

us-gaap:LessorOperatingLeasePaymentsToBeReceived

us-gaap:LessorOperatingLeasePaymentsToBeReceivedFiveYears

us-gaap:LessorOperatingLeasePaymentsToBeReceivedFourYears

us-gaap:LessorOperatingLeasePaymentsToBeReceivedNextTwelveMonths

us-gaap:LessorOperatingLeasePaymentsToBeReceivedThereafter

us-gaap:LessorOperatingLeasePaymentsToBeReceivedThreeYears

us-gaap:LessorOperatingLeasePaymentsToBeReceivedTwoYears
dei:LegalEntity
us-gaap:LimitedPartnersCapitalAccount
dei:LegalEntity, us-gaap:PartnerTypeOfPartnersCapitalAccount

us-gaap:LineOfCredit
dei:LegalEntity
us-gaap:LongtermDebtType
us-gaap:LongtermDebtType
us-gaap:LineOfCreditFacilityMaximumBorrowingCapacity
us-gaap:LongtermDebtType
us-gaap:LongTermDebtMaturitiesRepaymentsOfPrincipalAfterYearFive

us-gaap:LongTermDebtMaturitiesRepaymentsOfPrincipalInNextTwelveMonths
us-gaap:LongtermDebtType
us-gaap:LongtermDebtType
us-gaap:LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFive

us-gaap:LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFour
us-gaap:LongtermDebtType

us-gaap:LongTermDebtMaturitiesRepaymentsOfPrincipalInYearThree
us-gaap:LongtermDebtType

us-gaap:LongTermDebtMaturitiesRepaymentsOfPrincipalInYearTwo
us-gaap:LongtermDebtType

us-gaap:LongTermDebtMaturitiesRepaymentsOfPrincipalRemainderOfFiscalYear
us-gaap:LongtermDebtType
us-gaap:LongTermDebtPercentageBearingVariableInterestRate
us-gaap:LongtermDebtType
us-gaap:LongtermDebtWeightedAverageInterestRate

us-gaap:MarketableSecurities
dei:LegalEntity

us-gaap:MinorityInterestInLimitedPartnerships

us-gaap:MortgageBackedSecuritiesAvailableForSaleFairValueDisclosure

us-gaap:NoncontrollingInterestInVariableInterestEntity
us-gaap:AccountsNotesLoansAndFinancingReceivableByReceivableType
us-gaap:NotesReceivableGross

us-gaap:NotesReceivableNet
dei:LegalEntity
us-gaap:AccountsNotesLoansAndFinancingReceivableByReceivableType
us-gaap:AccountsNotesLoansAndFinancingReceivableByReceivableType, us-gaap:RelatedPartyTransactionsByRelatedParty
us-gaap:NotesReceivableRelatedParties

us-gaap:OperatingLeaseWeightedAverageDiscountRatePercent

us-gaap:OtherLiabilities
dei:LegalEntity
us-gaap:EquityMethodInvestmentNonconsolidatedInvestee
us-gaap:ScheduleOfEquityMethodInvestmentEquityMethodInvesteeName, us-gaap:EquityMethodInvestmentNonconsolidatedInvestee
dei:LegalEntity
us-gaap:PartnersCapital
dei:LegalEntity, us-gaap:PartnerCapitalComponents, us-gaap:PartnerTypeOfPartnersCapitalAccount
us-gaap:PartnersCapitalAccountUnits
dei:LegalEntity
us-gaap:PartnersCapitalIncludingPortionAttributableToNoncontrollingInterest
dei:LegalEntity, us-gaap:PartnerCapitalComponents
dei:LegalEntity, us-gaap:PartnerCapitalComponents, us-gaap:PartnerTypeOfPartnersCapitalAccount

us-gaap:PrepaidExpenseAndOtherAssets
dei:LegalEntity

us-gaap:RealEstateAccumulatedDepreciation

us-gaap:RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements

us-gaap:RealEstateAndAccumulatedDepreciationCarryingAmountOfLand

us-gaap:RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts

us-gaap:RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements

us-gaap:RealEstateAndAccumulatedDepreciationInitialCostOfLand

us-gaap:RealEstateGrossAtCarryingValue

us-gaap:RealEstateHeldforsale
dei:LegalEntity
us-gaap:ConsolidatedEntities

us-gaap:RealEstateInvestmentPropertyAccumulatedDepreciation
dei:LegalEntity

us-gaap:RealEstateInvestmentPropertyAtCost
dei:LegalEntity

us-gaap:RealEstateInvestmentPropertyNet
dei:LegalEntity
us-gaap:ConsolidationItems
us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments

us-gaap:RealEstateLiabilitiesAssociatedWithAssetsHeldForDevelopmentAndSale
dei:LegalEntity

us-gaap:RedeemableNoncontrollingInterestEquityCarryingAmount
dei:LegalEntity

us-gaap:RestrictedCashAndCashEquivalents
dei:LegalEntity

us-gaap:RevenueRemainingPerformanceObligation

us-gaap:RevenueRemainingPerformanceObligationPercentage

us-gaap:SecuredDebt
dei:LegalEntity
us-gaap:LongtermDebtType

us-gaap:SeniorNotes
us-gaap:DebtInstrument, us-gaap:LongtermDebtType
us-gaap:LongtermDebtType
us-gaap:AwardType
us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingAggregateIntrinsicValue
us-gaap:AwardType
us-gaap:SharebasedCompensationArrangementBySharebasedPaymentAwardEquityInstrumentsOtherThanOptionsAggregateIntrinsicValueOutstanding
us-gaap:StatementEquityComponents
us-gaap:StockRepurchaseProgramRemainingAuthorizedRepurchaseAmount1

us-gaap:UnamortizedDebtIssuanceExpense
us-gaap:DebtInstrument, us-gaap:LongtermDebtType
us-gaap:LongtermDebtType

us-gaap:UnsecuredDebt
dei:LegalEntity
dei:LegalEntity, us-gaap:DebtInstrument, us-gaap:LongtermDebtType
ess:DebtMaturity, us-gaap:LongtermDebtType
us-gaap:BusinessAcquisition, us-gaap:LongtermDebtType
us-gaap:DebtInstrument, us-gaap:LongtermDebtType
us-gaap:FairValueByMeasurementBasis, us-gaap:LongtermDebtType
us-gaap:LongtermDebtType

Plots across concepts


IncomeStatement
Comprehensive Income Net Of Tax
Balance Sheet
Finite Lived Intangible Assets Net
Assets
Cash And Cash Equivalents At Carrying Value
Current Assets
Cash And Cash Equivalents At Carrying Value
NonCurrent Assets
Finite Lived Intangible Assets Net
Liabilities
Other Liabilities
Noncurrent Liabilities
Minority Interest
Stockholders Equity
Accumulated Other Comprehensive Income Loss Net Of Tax
CashFlow
Net Cash Provided By Used In Investing Activities
NetCashProvidedByUsedInOperatingActivities
Increase Decrease In Prepaid Deferred Expense And Other Assets
NetCashProvidedByUsedInFinancingActivities
Net Cash Provided By Used In Financing Activities
Shares
Weighted Average Number Of Shares Outstanding Basic
DividendsAndRepurchase
Payments For Repurchase Of Common Stock
LesseeOperatingLeaseLiabilityPaymentsDue
Lessee Operating Lease Liability Payments Due Year Four

Tables

  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
us-gaap:CommonStockValue █▆▆████████████▆▆▆▆▆▆▆▆▆▆▆▆▆▆▃▃▁▁▁▁▁▁▁▁▁▁▁▁0.0070.0060.0060.0070.0070.0070.0070.0070.0070.0070.0070.0070.0070.0070.0070.0060.0060.0060.0060.0060.0060.0060.0060.0060.0060.0060.0060.0060.0060.0040.0040.0030.0030.0030.0030.0030.0030.0030.0030.0030.0030.0030.003NANANA
 us-gaap:SharesIssued us-gaap:StatementEquityComponents us-gaap:CommonStock▁▁▁▂▃▄██▆▆▇████▇▇▅▄▄65.00464.99964.99965.2165.33165.41266.09266.08265.72765.71665.8966.05566.0566.04466.05466.00265.98965.5765.52865.523NANA65.379NANANA63.68363.22962.30138.39237.42137.32337.31837.27636.44335.71435.07134.1330.03388833.38232.72431.6831.325NANANA
us-gaap:WeightedAverageNumberOfDilutedSharesOutstanding ▁█65.08074665.114933NA65.24142865.42793566.195415NA65.97308565.82181565.783869NA66.10381266.09634966.082517NA66.07828365.81969465.85949NA65.61755165.57537865.557639NA65.2975564.97285264.39468NA63.06977262.05976237.931454NA37.43698337.39098737.092062NA35.69966634.7084234.151475NA33.20928932.13506431.546593NA29.7624229.40263529.018571
us-gaap:WeightedAverageNumberOfSharesOutstandingBasic █▁65.00167764.98962NA65.23283765.41240766.043831NA65.85052465.71880665.702788NA66.05210866.04775166.044022NA65.99489665.72907465.549484NA65.50766965.4511165.405654NA65.13886864.81018464.185455NA62.89260161.88496337.685073NA37.32056237.2927237.003925NA35.60077234.57077234.02789NA33.12172832.04090431.465817NA29.6909129.32927328.967855
 us-gaap:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount dei:LegalEntity,us-gaap:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecurities ess:EssexPortfolioL.P.,us-gaap:EmployeeStockOption0.136172NANANA0.4312530.11638NA0.00.00.106029NA0.1508520.1851810.364068NA0.00.00824NANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount us-gaap:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecurities ess:ConvertibleLimitedPartnershipUnits▁█2.293762.293804NANA2.295752.300181NA2.2983892.2992842.305064NA2.2729832.2730982.273413NA2.2511122.2516872.252234NA2.2209522.2239282.227865NA2.177632.1820252.184314NA2.5721112.1735422.272179NA2.1469232.1514942.079447NA2.2357832.2390572.245166NA2.2284042.2303542.240639NA2.2009072.357321NA
 us-gaap:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount us-gaap:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecurities us-gaap:EmployeeStockOption▁█0.1361720.349252NANA0.4312530.11638NA0.00.00.106029NA0.1508520.1851810.364068NA0.00.008240.225895NA0.04090.0879540.0772NA0.02450.02450.0NA0.0083430.0369560.164442NA0.0388250.260513NANANANANANANANANANANANANA
us-gaap:EarningsPerShareBasic ▂▅▃▃▃█▄▃▃▄▄▃▃▃▃▃▂▅▅▂▃▃▃▂▂▂▂▂▁▂▂▄▂▂▃▂▂▂▂▁▁▁▁▁▁▂1.02.591.46999999999999981.131.294.771.951.511.41.811.781.231.521.381.571.211.082.732.981.01.11.191.220.650.70.920.630.850.080.580.851.840.670.681.220.461.070.670.420.230.320.270.160.210.320.45
 us-gaap:EarningsPerShareBasic dei:LegalEntity ess:EssexPortfolioL.P.▁▄▂▁▂█▃▂▂▃▂▁▂▂▂▁▁▄1.02.591.46999999999999981.131.294.771.951.511.41.811.781.231.521.381.571.211.082.73NANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:EarningsPerShareDiluted ▂▅▃▃▃█▄▃▃▄▄▃▃▃▃▃▂▅▅▂▃▃▃▂▂▂▂▂▁▂▂▄▂▂▃▂▂▂▂▁▁▁▁▁▁▂1.02.591.47999999999999951.131.294.761.951.511.41.811.781.221.521.381.571.211.082.722.981.01.11.191.220.650.70.920.630.850.080.580.851.840.670.681.220.451.070.670.420.230.320.270.160.210.320.45
 us-gaap:EarningsPerShareDiluted dei:LegalEntity ess:EssexPortfolioL.P.▁▄▂▁▂█▃▂▂▃▂▁▂▂▂▁▁▄1.02.591.47999999999999951.131.294.761.951.511.41.811.781.231.521.381.571.211.082.72NANANANANANANANANANANANANANANANANANANANANANANANANANANANA
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
 Cost Ratio us-gaap:ScheduleOfEquityMethodInvestmentEquityMethodInvesteeName,us-gaap:EquityMethodInvestmentNonconsolidatedInvestee ess:TotalCoInvestment,us-gaap:EquityMethodInvestmentNonconsolidatedInvesteeOrGroupOfInvestees▁█68.40571.759NA76.58172.17577.369NA84.07181.832NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 Cost Ratio dei:LegalEntity ess:EssexPortfolioL.P.▃▃▄▅▅█▆▅▄▃▃▃▂▂▂▂▁350.978355.125362.073370.811370.497392.367375.365366.932361.635356.223353.158350.917348.723347.255345.064344.369339.062NANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 Gross Margin us-gaap:ScheduleOfEquityMethodInvestmentEquityMethodInvesteeName,us-gaap:EquityMethodInvestmentNonconsolidatedInvestee ess:TotalCoInvestment,us-gaap:EquityMethodInvestmentNonconsolidatedInvesteeOrGroupOfInvestees▁█68.40571.759NA76.58172.17577.369NA84.07181.832NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 Net profit Margin dei:LegalEntity ess:EssexPortfolioL.P.▃▃▄▅▅█▆▅▄▃▃▃▂▂▂▂▁350.978355.125362.073370.811370.497392.367375.365366.932361.635356.223353.158350.917348.723347.255345.064344.369339.062NANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 Net profit Margin us-gaap:ScheduleOfEquityMethodInvestmentEquityMethodInvesteeName,us-gaap:EquityMethodInvestmentNonconsolidatedInvestee ess:TotalCoInvestment,us-gaap:EquityMethodInvestmentNonconsolidatedInvesteeOrGroupOfInvestees▁█68.40571.759NA76.58172.17577.369NA84.07181.832NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 Operating Margin dei:LegalEntity ess:EssexPortfolioL.P.▃▃▄▅▅█▆▅▄▃▃▃▂▂▂▂▁350.978355.125362.073370.811370.497392.367375.365366.932361.635356.223353.158350.917348.723347.255345.064344.369339.062NANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
us-gaap:ComprehensiveIncomeNetOfTax ▂▅▃▃▃█▄▃▃▄▃▃▃▃▃▃▃▅▆▂▃▃▃▂▂▂▂▂▁▁▂▂▂▁▂▁▂▁▁▁▁▁65.468172.78397.81675.57188.416306.226133.95899.29988.1117.083113.15183.865103.71196.889109.79983.43272.377181.103203.56668.47373.15579.69889.28443.43247.58461.26141.76657.358.90427.35735.35970.3831.78127.55252.34914.05536.09626.29617.778.73516.6168.393NANANANA
us-gaap:ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest ▃▅▃▃▃█▄▄▃▄▄▃▃▃▄▃▃▅▅▃▃▃▃▂▂▂▂▂▁▂▂▃▂▂▃▁▂▂▁▁▁▂4.7918.6585.9775.2475.75613.4526.5446.3645.646.5856.4595.2356.0825.9266.2615.4385.0918.6619.224.74.854.9985.1043.5383.7034.0913.5073.7892.1843.3723.7815.7323.5743.1874.9382.4073.8873.2962.7322.0072.5063.505NANANANA
us-gaap:ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest ▂▅▃▃▃█▄▃▃▄▃▃▃▃▃▃▃▅▆▂▃▃▃▂▂▂▂▂▁▁▂▂▂▁▂▁▂▁▁▁▁▁70.259181.441103.79380.81894.172319.678140.502105.66393.74123.668119.6189.1109.793102.815116.0688.8777.468189.764212.78673.17378.00584.69694.38846.9751.28765.35245.27361.13911.08830.72939.1476.11235.35530.73957.28716.46239.98329.59220.50210.74219.12211.898NANANANA
 us-gaap:CostOfRevenue us-gaap:ScheduleOfEquityMethodInvestmentEquityMethodInvesteeName,us-gaap:EquityMethodInvestmentNonconsolidatedInvestee ess:TotalCoInvestment,us-gaap:EquityMethodInvestmentNonconsolidatedInvesteeOrGroupOfInvestees▁█27.01327.331NA28.04725.85925.715NA29.21427.835NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:CostsAndExpenses ▇▇████▇▇▇▇▇▇▇▇▇▆▆▆▆▆▆▆▆▆▆▆▆▆▆▃▂▂▂▂▂▂▂▂▂▂▁▁▁▁▁▁257.597257.84275.858264.528267.358261.53255.383242.893237.075240.528243.746237.02232.451236.708232.689231.7226.815226.173223.518219.759215.717214.207218.542221.937215.196207.558214.129205.239217.314127.871112.064106.689104.725102.23599.70195.26891.59387.93886.49185.55284.15182.21884.24577.02772.19270.304
us-gaap:GainsLossesOnExtinguishmentOfDebt ▂▆▇▁▅▇▅█▇▇▆▆▆▆▆▆-16.465-2.5170.937-19.114-5.0270.321-3.4265.4750.3321.3360.00.00.00.0-1.7960.0NANA-0.395-0.2110.00.0-40.1280.012.65221.362-0.2680.00.0-3.75-1.146-0.1781.0240.0-2.348-1.211-1.45NA-0.343-0.567-0.253NA0.00.0-0.01NA
 us-gaap:GainsLossesOnExtinguishmentOfDebt dei:LegalEntity ess:EssexPortfolioL.P.▂▆▇▁▅▇▅█▇▇▆▆▆▆-16.465-2.5170.937-19.114-5.0270.321-3.4265.4750.3321.3360.00.00.00.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:GeneralAndAdministrativeExpense ▄▃█▄▅▄▅▃▄▄▆▃▃▅▃▃▃▃▄▃▃▃▂▃▃▃▄▃▃▂▂▁▁▂▂▁▁▁▂▁▁▁▂▁▁▁12.2229.81223.14413.3114.95213.98215.53111.34513.92713.45916.91210.60111.12514.81310.6599.78810.33710.60112.2249.6479.6989.1828.86711.1299.54910.54512.25711.4799.5587.0756.6766.0756.2246.6266.8675.2765.7645.46.7536.0666.3716.1157.9746.1756.2195.618
 us-gaap:GrossProfit us-gaap:ScheduleOfEquityMethodInvestmentEquityMethodInvesteeName,us-gaap:EquityMethodInvestmentNonconsolidatedInvestee ess:TotalCoInvestment,us-gaap:EquityMethodInvestmentNonconsolidatedInvesteeOrGroupOfInvestees▁█41.39244.428NA48.53446.31651.654NA54.85753.997NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:IncomeLossFromContinuingOperations ▁▄▂▁▂█▃▂▂▃▂▁▂▂▂▁▁▄▅▁▁▁64.846168.44495.74573.66184.458315.006128.81899.33592.275118.858117.8280.975100.4490.918103.61379.72370.759178.964195.56965.56172.01377.981NANANANA40.49553.6684.98921.91214.98756.64424.94625.20343.78316.21937.07813.30711.0348.5055.3378.0164.5666.2249.329NA
us-gaap:InterestExpense ▇▇██████▇▇▇██████████▇█▇▇▆▆▆▅▂▂▂▂▂▂▂▂▂▂▁▁▂▂▁▁▁50.97151.64955.60955.4354.44755.14754.68854.89654.11253.64354.15755.19656.27854.86155.56155.93856.81254.58354.92756.69355.56852.46656.42650.05350.80247.54647.5345.8342.15126.05526.87626.18726.32525.21125.86425.06424.65924.65825.08222.09622.7124.66226.521.02520.16120.836
us-gaap:InterestPaidNet ▅▇▆█▅▆▆▆▆▅▇▅▇▄█▅▇▆█▅▅▆▅▆▄▆▄▆▁▂▂▂▂▂▂▂▂▂▂▂▁▂▂▂▁▁41.32855.21350.80562.56945.87152.48749.41750.07653.01141.91457.76445.54360.1940.30663.42142.29458.05148.39763.5647.15244.92248.10945.3749.38936.00450.34337.34948.90517.9926.44726.9226.54326.1923.86327.04222.9822.97222.60323.06223.03519.43324.16121.90221.54720.28719.761
us-gaap:NetIncomeLossAttributableToNoncontrollingInterest ▃▅▃▃▃█▄▄▃▄▄▃▃▃▃▃▃▅▅▃▃▃▃▂▂▂▂▂▁▂▂▃▂▂▂▁▂▂▁▁▁▂▂▂▂▂4.7698.5055.9045.1815.61813.7596.3646.3655.7866.6476.625.1355.975.7216.0495.3125.0368.5878.9484.6014.8115.0714.8243.5453.6744.0763.3173.722.1253.1263.665.7193.2613.1324.4792.6354.0443.1512.5642.0312.3043.5463.3083.5063.8444.189
us-gaap:NetIncomeLossAvailableToCommonStockholdersBasic ▂▅▃▃▃█▄▃▃▄▄▃▃▃▃▃▂▅▅▂▃▃▃▂▂▂▂▂▁▁▂▂▁▁▂▁▂▁▁▁▁▁▁▁▁▁64.846168.44495.74573.66184.458315.006128.81899.33592.275118.858117.8280.975100.4490.918103.61379.72370.759178.964195.56965.56172.01377.98179.62442.32345.55559.36340.17553.6684.98921.91231.87468.78824.94625.20343.79316.21937.07822.72213.9377.68710.3258.4184.7786.3779.48213.127
us-gaap:OperatingIncomeLoss ▄█▅▅▅▅▅▅▅▅▄▅▅▄▅▅▅▄▄▄▄▄▄▃▃▃▃▃▂▁▂▂▂▂▂▂▂▂▂▁▁▁▁▁▁▁93.381197.381111.931128.937119.736130.837116.818124.039124.56115.695109.412113.897116.272110.547112.375112.669112.247109.231105.52109.412105.87399.99592.20482.68980.96675.31564.57165.2442.13633.77444.18249.21348.67947.10745.10442.87440.96839.9838.49834.50633.04731.55526.22527.327.99330.88
us-gaap:OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationAndTax ▆█▇▇▆▁▇▆▃▅0.4724.4071.9711.8840.779-8.7823.418-0.012-4.361-1.993NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:OtherComprehensiveIncomeLossNetOfTax dei:LegalEntity,us-gaap:PartnerCapitalComponents ess:EssexPortfolioL.P.,us-gaap:AccumulatedGainLossNetCashFlowHedgeParentNANANA1.8844.061-8.782NA-0.012NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:OtherComprehensiveIncomeLossNetOfTax dei:LegalEntity,us-gaap:PartnerCapitalComponents ess:EssexPortfolioL.P.,us-gaap:AccumulatedNetUnrealizedInvestmentGainLossNANANA0.0920.035-0.305NA-0.0250.040.156NA0.016NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:OtherComprehensiveIncomeLossNetOfTax dei:LegalEntity,us-gaap:PartnerCapitalComponents ess:EssexPortfolioL.P.,us-gaap:AccumulatedOtherComprehensiveIncomeNANANA1.9764.096-9.087NA-0.037-4.321-1.656NA2.99NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:OtherComprehensiveIncomeLossNetOfTax dei:LegalEntity,us-gaap:StatementEquityComponents ess:EssexPortfolioL.P.,us-gaap:AccumulatedGainLossNetCashFlowHedgeParent▁█0.4724.407NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:OtherComprehensiveIncomeLossNetOfTax dei:LegalEntity,us-gaap:StatementEquityComponents ess:EssexPortfolioL.P.,us-gaap:AccumulatedNetUnrealizedInvestmentGainLoss█▁0.1720.085NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:OtherComprehensiveIncomeLossNetOfTax dei:LegalEntity,us-gaap:StatementEquityComponents ess:EssexPortfolioL.P.,us-gaap:AccumulatedOtherComprehensiveIncome▁█0.6444.492NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:OtherComprehensiveIncomeLossNetOfTax us-gaap:StatementEquityComponents us-gaap:AccumulatedGainLossNetCashFlowHedgeParent▁█0.4564.257NA1.8213.925-8.486NA-0.012NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:OtherComprehensiveIncomeLossNetOfTax us-gaap:StatementEquityComponents us-gaap:AccumulatedNetUnrealizedInvestmentGainLoss█▁0.1660.082NA0.0890.033-0.294NA-0.0240.0390.151NA0.015-0.018-2.309NA1.2060.479-1.379NANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:OtherComprehensiveIncomeLossNetOfTax us-gaap:StatementEquityComponents us-gaap:AccumulatedOtherComprehensiveIncome▁█0.6224.339NA1.913.958-8.78NA-0.036-4.175-1.6NA2.893.2713.737NA3.7091.6182.139NANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:ProfitLoss ▂▅▃▃▃█▄▃▃▄▄▃▃▃▃▃▂▅▅▂▂▃▃▂▂▂▂▂▁▁▂▂▁▁▂▁▂▁▁▁▁▁▁▁▁▁69.615176.949101.64978.84290.076328.765135.182105.798.061125.505124.4486.11106.4196.639109.66285.03575.795187.551204.51770.16276.82486.90785.76247.18250.54264.75344.80558.6848.42826.40636.90375.87529.57529.70349.6420.22242.4927.24117.86711.08516.05312.5078.62810.42613.86917.858
us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax ▆▆▆▆▆▆▆▆▆▆▁██████████████████▇▇▇▇▇▇▇▇▇▇▇▇▇▇▇▇▇2.2212.2492.2862.3472.3482.6172.5042.4282.262.335-1037.712350.917348.723347.255345.064344.369339.062335.404329.038329.171321.59314.202310.746304.626296.162282.873278.7270.479259.45161.645156.246155.902153.404149.342144.805138.142132.561127.918124.989120.058117.198113.773110.47104.327100.185101.184
 us-gaap:RevenueFromContractWithCustomerIncludingAssessedTax us-gaap:ConsolidationItems,us-gaap:ProductOrService us-gaap:CorporateNonSegment,ess:RentalAndOtherPropertyRevenues▁█2.8744.541NA18.8649.6866.185NA6.4116.4736.29917.9575.9947.7111.05420.437.8667.5296.569NANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:RevenueFromContractWithCustomerIncludingAssessedTax us-gaap:ConsolidationItems,us-gaap:ProductOrService,us-gaap:StatementBusinessSegments us-gaap:OperatingSegments,ess:RentalAndOtherPropertyRevenues,ess:NorthernCalifornia▁█143.386146.69NA148.712153.831164.079NA144.124140.095136.325132.811131.538129.59128.622127.782127.673126.55123.308NANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:RevenueFromContractWithCustomerIncludingAssessedTax us-gaap:ConsolidationItems,us-gaap:ProductOrService,us-gaap:StatementBusinessSegments us-gaap:OperatingSegments,ess:RentalAndOtherPropertyRevenues,ess:SeattleMetro█▁59.26758.633NA60.61760.64963.844NA61.65760.84160.2459.78559.23158.79558.71358.30758.28557.08756.192NANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:RevenueFromContractWithCustomerIncludingAssessedTax us-gaap:ConsolidationItems,us-gaap:ProductOrService,us-gaap:StatementBusinessSegments us-gaap:OperatingSegments,ess:RentalAndOtherPropertyRevenues,ess:SouthernCalifornia█▁143.23143.012NA140.271143.983155.642NA152.312151.966151.024140.234151.847150.431146.558135.898148.15145.6147.099NANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:RevenueFromContractWithCustomerIncludingAssessedTax us-gaap:ProductOrService ess:ManagementAndOtherFeesFromAffiliatesIncome▁▂▂▃▃█▆▅▂▃▄▃▁▃█▄▃▂2.2212.2492.2862.3472.3482.6172.5042.4282.262.3352.3712.3072.1972.3082.6472.3952.2962.236NANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:RevenueFromContractWithCustomerIncludingAssessedTax us-gaap:ProductOrService ess:RentalAndOtherPropertyRevenues▁█348.757352.876NA368.464368.149389.75NA364.504359.375353.888350.787348.61346.526344.947342.417341.974336.766333.168NANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:Revenues ▇▇▇▇▇██▇▇▇▇▇▇▇▇▇▇▇▆▆▆▆▆▆▆▅▅▅▅▂▂▂▂▂▂▂▂▂▂▁▁▁▁▁▁▁350.978355.125362.073370.811370.497392.367375.365366.932361.635356.223353.158350.917348.723347.255345.064344.369339.062335.404329.038329.171321.59314.202310.746304.626296.162282.873278.7270.479259.45161.645156.246155.902153.404149.342144.805138.142132.561127.918124.989120.058117.198113.773110.47104.327100.185101.184
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
us-gaap:Assets ▇█████▇█▇▇▇▇▇▇▇▇▇▇▇▇▇▇▇▇▇▇▇▇▆▃▂▂▂▂▂▂▁▁▁▁▁▁▁12747.19912790.20412936.17713401.04213177.41113450.84112705.40512997.89212671.14512578.00112383.59612518.14312555.65412642.66712495.70612512.52312524.95112447.42712217.40812177.19612206.69112067.48412005.09112012.71712045.00412085.15911562.87411666.56211348.3636633.0425186.8395085.6025058.9984936.4594847.2234534.6724339.1164051.3784036.9643905.1653825.8553866.6863732.887NANANA
us-gaap:Liabilities ▇▇▇███▇▇▇▇▆▆▆▇▆▆▆▆▆▆▆▆▆▆▆▆▅▆▅▂▂▂▂▂▂▂▁▁▁▁▁▁▁6575.476542.9516720.7467102.8416791.2897000.2496264.4916543.8116289.1996223.6375954.2776045.456044.7146109.3496059.6756088.5856041.8436013.0095880.4875949.1855947.0845780.0415622.6165656.3055676.5345759.3875403.555551.6775352.6153071.2893184.2523087.5493084.6052947.8952962.7582749.2322624.4122473.5792478.8872394.5932374.7542494.8962373.524NANANA
us-gaap:LiabilitiesAndStockholdersEquity ▇█████▇█▇▇▇▇▇▇▇▇▇▇▇▇▇▇▇▇▇▇▇▇▆▃▂▂▂▂▂▂▁▁▁▁▁▁▁12747.19912790.20412936.17713401.04213177.41113450.84112705.40512997.89212671.14512578.00112383.59612518.14312555.65412642.66712495.70612512.52312524.95112447.42712217.40812177.19612206.69112067.48412005.09112012.71712045.00412085.15911562.87411666.56211348.3636633.0425186.8395085.6025058.9984936.4594847.2234534.6724339.1164051.3784036.9643905.1653825.8553866.6863732.887NANANA
us-gaap:StockholdersEquity ▇██████████████████████████▇▇▂▂▂▂▂▂▂▂▁▁▁▁▁▁5953.4556025.1766000.416082.9976166.0746228.1656220.4276225.16154.9076191.2576267.0736316.9616354.1856368.7736277.4066265.5086316.7736264.0216192.1786088.6186118.1466141.9926237.7336221.0416234.0526186.7076022.6725983.2925858.4482023.9941884.6191880.21858.1551870.4651764.8041665.6931593.2251457.6421437.5271388.311326.8641164.3611149.946NANANA
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
us-gaap:CashAndCashEquivalentsAtCarryingValue ▂▂▂█▄▄▂▂▁▂▃▃▃▃▂▂▃▂▂▃▃▂▁▁▁▄▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▂▁▁▁▁48.155103.44273.629558.446246.204271.87770.08774.03138.168107.034134.465157.279160.902121.95444.6246.507183.88584.34464.921195.167182.51548.16429.68335.66830.242219.225.28117.87717.94619.91818.4919.50920.21730.84418.6061.9434.13213.74412.8899.028.80997.68313.75314.6688.36722.312
us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents ▁▂▁█▄▄▁▂▁▂▂▃▃▂▁▁▃▂▃58.176113.3684.041569.075256.475282.34781.09491.72654.971124.126151.395174.626177.576139.07861.12663.273199.876100.252170.302NANANA123.055NANANANANANANANANANANANANANANANANANANANANANANA
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
us-gaap:InvestmentsInAffiliatesSubsidiariesAssociatesAndJointVentures ▆▆▆▆▆▆███▇▇▇▇▇▇▆▆▆▇▆▆▆▆▆▆▆▆▆▆▄▄▄▄▄▃▃▃▃▂▂▁▁▁1037.27962.6251018.011018.2351008.758997.1371335.3391413.8611324.0811307.5611300.141267.5931291.321290.9571155.9841124.5771081.0841071.2581161.2751122.9131103.2721069.6841036.0471036.0431044.2081057.2981036.4111043.277964.97716.443677.133674.075618.259579.654571.345477.967436.23401.531383.412275.41197.364133.161107.84NANANA
us-gaap:FiniteLivedIntangibleAssetsNet NANA4.7NANANA1.2NANANA0.1NANANA0.4NANANA1.4NANANA2.857NANANA47.747NANANA4.513NANANANANANANANANANANANANANANA
us-gaap:OperatingLeaseRightOfUseAsset ▇▇████████▁70.55171.34772.14372.9173.66974.42874.74475.47876.20576.9960.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:EquitySecuritiesFvNi ▁▁▁▁▁▂▃▅███2.52.42.52.72.73.23.64.96.86.86.7NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
us-gaap:LongTermDebt ▇▇▁█6089.6996140.569643.556650.278NANA990.667NANANA1806.626NANANA2008.417NANANA2191.481NANANA2215.0775255.937NANA2245.944NANANA1404.08NANANA1565.599NANANA1745.858NANANA1832.745NANANA
us-gaap:MinorityInterest ▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁█▁▁▁▁▁▁▁▁▁▁▁▂▂183.248185.755182.782184.485186.807189.784183.077189.904190.209125.938126.771119.067120.498123.386119.419118.386121.254124.982100.05995.28496.9399.24899.29110.782110.588114.149113.396110.151113.7341533.41113.619113.504111.889113.75115.312115.398117.13115.808116.201117.913119.888203.08205.068NANANA
us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearTwo NANA6.987NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearThree NANA6.962NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearFour NANA6.69NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearFive NANA6.31NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive NANA140.417NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
us-gaap:StockholdersEquity ▇██████████████████████████▇▇▂▂▂▂▂▂▂▂▁▁▁▁▁▁5953.4556025.1766000.416082.9976166.0746228.1656220.4276225.16154.9076191.2576267.0736316.9616354.1856368.7736277.4066265.5086316.7736264.0216192.1786088.6186118.1466141.9926237.7336221.0416234.0526186.7076022.6725983.2925858.4482023.9941884.6191880.21858.1551870.4651764.8041665.6931593.2251457.6421437.5271388.311326.8641164.3611149.946NANANA
us-gaap:StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest ███████████████████████████▇▇▄▂▂▂▂▂▂▁▁▁▁▁▁▁6136.7036210.9316183.1926267.4826352.8816417.9496403.5046415.0046345.1166317.1956393.8446436.0286474.6836492.1596396.8256383.8946438.0276389.0036292.2376183.9026215.0766241.246337.0236331.8236344.646300.8566136.0686093.4435972.1823557.4041998.2381993.7041970.0441984.2151880.1161781.0911710.3551573.451553.7281506.2231446.7521367.4411355.014NANANA
us-gaap:CommonStockValue █▆▆████████████▆▆▆▆▆▆▆▆▆▆▆▆▆▆▃▃▁▁▁▁▁▁▁▁▁▁▁▁0.0070.0060.0060.0070.0070.0070.0070.0070.0070.0070.0070.0070.0070.0070.0070.0060.0060.0060.0060.0060.0060.0060.0060.0060.0060.0060.0060.0060.0060.0040.0040.0030.0030.0030.0030.0030.0030.0030.0030.0030.0030.0030.003NANANA
us-gaap:AdditionalPaidInCapital ██████████████████████████▇▇▇▂▂▂▂▂▂▂▂▁▁▁▁▁▁6862.8796864.1856876.3266921.6316944.8056959.5237121.9277131.6427031.8867028.1547093.0797133.5877131.8097127.2487129.5717111.8667131.0477035.1787029.6797024.8277017.9627010.1817003.3176980.4436941.6296848.2556651.1656569.4426414.2582505.0032345.7632330.0412331.832329.3832204.7782116.5312017.4451877.3731844.6111776.5461687.6911555.4161515.468NANANA
us-gaap:AccumulatedOtherComprehensiveIncomeLossNetOfTax ██▇▇▇▇▇▇▇▇███▇▇▆▆▆▆▅▅▄▅▄▄▄▄▄▃▃▃▃▃▂▂▁▁▂▂▁▁▁▁-9.768-10.39-14.729-16.8-18.71-22.668-13.888-19.028-18.992-14.817-13.217-8.548-11.438-14.709-18.446-24.632-28.341-29.959-32.098-40.095-43.007-44.149-42.011-50.357-50.152-50.868-51.452-51.408-53.794-56.395-60.472-62.589-62.813-68.28-69.261-76.449-72.915-70.565-72.771-75.237-74.918-77.785-77.217NANANA
 us-gaap:AccumulatedOtherComprehensiveIncomeLossNetOfTax dei:LegalEntity ess:EssexPortfolioL.P.▇▇▅▄▃▁▅▃▃▅▆█▇-6.167-6.811-11.303-13.447-15.423-19.519-10.432-15.752-15.715-11.394-9.738-4.908-7.898NA-15.229NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:MinorityInterest ▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁█▁▁▁▁▁▁▁▁▁▁▁▂▂183.248185.755182.782184.485186.807189.784183.077189.904190.209125.938126.771119.067120.498123.386119.419118.386121.254124.982100.05995.28496.9399.24899.29110.782110.588114.149113.396110.151113.7341533.41113.619113.504111.889113.75115.312115.398117.13115.808116.201117.913119.888203.08205.068NANANA
us-gaap:StockIssuedDuringPeriodValueNewIssues -0.084NA-0.068-0.095-0.063-0.07-0.0172.631-0.062-0.02-0.436-0.13-0.286-0.0678.678-0.18880.6-0.065-0.002-0.103-0.145-0.13424.30235.17188.506184.15883.171150.102141.801157.59615.4610.00.0122.90588.86297.9139.431.5967.14188.2130.238.436NANANANA
 us-gaap:StockIssuedDuringPeriodValueNewIssues dei:LegalEntity ess:EssexPortfolioL.P.-0.084NA-0.068-0.095-0.063-0.07-0.0172.631-0.062-0.02-0.436-0.13-0.286-0.067NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:StockIssuedDuringPeriodValueNewIssues dei:LegalEntity,us-gaap:PartnerCapitalComponents,us-gaap:PartnerTypeOfPartnersCapitalAccount ess:EssexPortfolioL.P.,ess:CommonEquity,us-gaap:GeneralPartner-0.084NA-0.068-0.095-0.063-0.07-0.0172.631-0.062-0.02-0.436-0.13-0.286-0.067NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:StockIssuedDuringPeriodValueNewIssues us-gaap:StatementEquityComponents us-gaap:AdditionalPaidInCapital-0.084NA-0.068-0.095-0.063-0.07-0.0172.631-0.062-0.02-0.436-0.13-0.286-0.0678.677-0.18880.63-0.065-0.002-0.103-0.145-0.13424.30235.17188.506184.15883.171150.102141.801157.59615.460.00.0122.90588.86297.914139.35431.5967.14188.198130.15638.436NANANANA
us-gaap:AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue ▄▆▅▄▆▃▅▃▅▄▅▃▅▄▇▃▃▃▇▂▃▃▅▃▃▃▅█▁▂▂▂▂▂▁▂▂▂▁▂▂▂2.7855.0823.6192.3615.2351.6984.3691.8143.52.64.291.7474.2842.536.4081.5332.1081.2536.4631.2381.7081.494.1352.0542.0871.374.4447.288-0.4080.5480.7410.3840.1640.3190.1230.8670.3910.420.0690.2440.3910.169NANANANA
us-gaap:MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders ▆▆▆▆▆▆▆▆▆▆▆▆▆▆▆▆▆▆▆▆▆▆▆▆▆▆▁▆▆▆▆▆▆▆▁█▄▅▅▅▄▄7.3037.5547.6787.6778.1337.8797.5966.7896.9447.1646.9526.8849.16.2975.9796.0559.0915.9265.4296.9548.0065.4655.3784.7388.0153.574-29.895.3113.5413.9694.384.2975.8163.995-29.56622.009-5.284-3.85-3.695-3.601-4.64-5.027NANANANA
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
us-gaap:NetCashProvidedByUsedInOperatingActivities ▆▄▂▆▂█▅█▃▇▂▇▂█▂▇▂▅▁▆▂▄232.805195.266149.671227.327159.184266.926212.152277.094174.074255.759145.417257.616155.163268.358144.864248.881149.133223.273132.026230.144149.743200.61NANANANANANA96.17982.94379.974.49664.89485.69248.16489.94357.23272.1643.74968.47147.04457.30727.24658.8736.43952.975
us-gaap:NetCashProvidedByUsedInInvestingActivities ▄█▅▆█▁█▂▅▄▇▅▆▅▅▄▅▅▄▅▅▅-152.504146.869-114.912-14.185157.834-445.637176.562-372.786-112.219-219.24875.931-76.81639.981-98.989-82.842-220.148-83.823-90.426-156.597-83.683-100.373-80.759NANANANANANA-674.63-51.639-144.709-27.306-175.944-105.737-294.072-201.888-272.127-44.051-165.143-110.521-65.933-84.186-259.35-128.362-45.661-77.495
 us-gaap:NetCashProvidedByUsedInInvestingActivities dei:LegalEntity ess:EssexPortfolioL.P.▄█▅▆█▁█▂▅▄▇▅▆▅▅▄-152.504146.869-114.912-14.185157.834-445.637176.562-372.786-112.219-219.24875.931-76.81639.981-98.989-82.648-221.653NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:NetCashProvidedByUsedInFinancingActivities ▄▃▁▆▂█▂▆▄▅▃▄▄▄▅▄▅▄▄▄▆▄-135.485-312.816-519.79399.458-342.89379.964-399.346132.447-131.01-63.78-244.579-183.75-156.646-91.417-63.909-166.11134.231-113.424-105.675-133.80984.981-101.37NANANANANANA436.126-29.87773.791-57.898100.42332.283262.571109.756205.283-27.254125.26342.261-69.985110.809231.18975.793-4.72326.172
 us-gaap:NetCashProvidedByUsedInFinancingActivities dei:LegalEntity ess:EssexPortfolioL.P.▄▃▁▆▂█▂▆▄▅▃▄▄▄▅▄-135.485-312.816-519.79399.458-342.89379.964-399.346132.447-131.01-63.78-244.579-183.75-156.646-91.417-65.539-165.993NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect ▅▆▁█▅▇▅▆▅▅▅▅-55.18429.319-485.034312.6-25.872201.253-10.63236.755-69.155-27.269-23.231-2.95NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect dei:LegalEntity ess:EssexPortfolioL.P.▅▆▁█▅▇▅▆▅▅▅▅-55.18429.319-485.034312.6-25.872201.253-10.63236.755-69.155-27.269-23.231-2.95NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
us-gaap:NetCashProvidedByUsedInOperatingActivities ▆▄▂▆▂█▅█▃▇▂▇▂█▂▇▂▅▁▆▂▄232.805195.266149.671227.327159.184266.926212.152277.094174.074255.759145.417257.616155.163268.358144.864248.881149.133223.273132.026230.144149.743200.61NANANANANANA96.17982.94379.974.49664.89485.69248.16489.94357.23272.1643.74968.47147.04457.30727.24658.8736.43952.975
us-gaap:ProfitLoss ▂▅▃▃▃█▄▃▃▄▄▃▃▃▃▃▂▅▅▂▂▃▃▂▂▂▂▂▁▁▂▂▁▁▂▁▂▁▁▁▁▁▁▁▁▁69.615176.949101.64978.84290.076328.765135.182105.798.061125.505124.4486.11106.4196.639109.66285.03575.795187.551204.51770.16276.82486.90785.76247.18250.54264.75344.80558.6848.42826.40636.90375.87529.57529.70349.6420.22242.4927.24117.86711.08516.05312.5078.62810.42613.86917.858
us-gaap:ShareBasedCompensation ▄▃▅▂▄▃▁▃▅▃▁▂▅▃▆▃▃▂█▂▃▃▂▃▃▃▅▃▄▂▃▂▂▂▂▂▂▂▂▂▂▂▂▂2.391.3863.2340.882.6381.4050.2621.4273.2532.068-0.0741.3033.8162.094.3921.5332.1081.2536.4631.2381.7081.490.552.0542.0871.373.7441.3712.3921.2331.3711.0110.9941.1321.2610.9550.9390.9861.3090.5620.6290.4270.8910.621NANA
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
us-gaap:NetCashProvidedByUsedInInvestingActivities ▄█▅▆█▁█▂▅▄▇▅▆▅▅▄▅▅▄▅▅▅-152.504146.869-114.912-14.185157.834-445.637176.562-372.786-112.219-219.24875.931-76.81639.981-98.989-82.842-220.148-83.823-90.426-156.597-83.683-100.373-80.759NANANANANANA-674.63-51.639-144.709-27.306-175.944-105.737-294.072-201.888-272.127-44.051-165.143-110.521-65.933-84.186-259.35-128.362-45.661-77.495
 us-gaap:NetCashProvidedByUsedInInvestingActivities dei:LegalEntity ess:EssexPortfolioL.P.▄█▅▆█▁█▂▅▄▇▅▆▅▅▄-152.504146.869-114.912-14.185157.834-445.637176.562-372.786-112.219-219.24875.931-76.81639.981-98.989-82.648-221.653NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:PaymentsToAcquireRealEstate ▂▁▁▁▁█▂▂▁▂▁▁▁▁▁▁▁▄▄▁▁▃▄▂▃▄▁▆▂▂▃▂▁▄▅▂▂▂▂▁▁▂▄▃▁▁17.2151.2031.0660.4980.555458.30240.43645.8042.60144.9847.5042.3312.6032.8736.1666.5015.61187.917191.5786.7057.04110.309187.92712.909115.7199.19-21.471315.24659.94733.825143.23529.5890.0175.95236.7676.50941.60238.914.154.377.55831.4183.01189.8396.7570.0
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
us-gaap:NetCashProvidedByUsedInFinancingActivities ▄▃▁▆▂█▂▆▄▅▃▄▄▄▅▄▅▄▄▄▆▄-135.485-312.816-519.79399.458-342.89379.964-399.346132.447-131.01-63.78-244.579-183.75-156.646-91.417-63.909-166.11134.231-113.424-105.675-133.80984.981-101.37NANANANANANA436.126-29.87773.791-57.898100.42332.283262.571109.756205.283-27.254125.26342.261-69.985110.809231.18975.793-4.72326.172
 us-gaap:NetCashProvidedByUsedInFinancingActivities dei:LegalEntity ess:EssexPortfolioL.P.▄▃▁▆▂█▂▆▄▅▃▄▄▄▅▄-135.485-312.816-519.79399.458-342.89379.964-399.346132.447-131.01-63.78-244.579-183.75-156.646-91.417-65.539-165.993NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:ProceedsFromIssuanceOfLongTermDebt ▄▅▃▆▅▅▄▅▃▅▃▃▃▄▃▁▅▆▅▃▅▄▄▄▄▇▅▅█▄▅▃▅▄▅▆▆▄▆▄▅▄▆▅▃▄298.101447.4040.0596.178358.49498.14152.528394.5280.0498.2340.00.00.0298.7730.0-467.313410.732654.562444.29152.487462.715305.895277.823144.601166.869756.562356.084416.2781087.264233.78327.16937.42369.19235.282397.88585.393603.186159.394642.642226.623341.231304.188597.831403.62150.172162.592
us-gaap:RepaymentsOfLongTermDebt ▆▇▆▆▅▄▅▆▅▆▄▄▄▄▄▁▆▇▆▄▅▆▅▅▅▇▇▅█▆▅▄▅▅▅▇▇▅▇▅▆▅▆▆▄▅350.869600.858329.152300.983183.511102.563225.87327.218112.553360.97568.08151.48827.08183.748101.12-544.926343.617661.349437.1779.789191.264309.903272.507194.132193.882536.83486.18250.63764.625312.585213.97441.854215.218279.854174.34525.824493.169177.984543.401230.541469.651191.542395.494323.33541.4122.417
us-gaap:PaymentsForRepurchaseOfCommonStock ▁▁▃▂▂█▁▁▁▃▃▁▁▁▁▁▁▁0.09.17246.32526.58620.093176.3110.00.00.056.98947.4590.00.03.7740.00.00.00.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:PaymentsForRepurchaseOfCommonStock dei:LegalEntity ess:EssexPortfolioL.P.▁▁▃▂▂█▁▁▁▃▃▁▁▁▁▁0.09.17246.32526.58620.093176.3110.00.00.056.98947.4590.00.03.7740.00.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
 us-gaap:DebtInstrumentInterestRateStatedPercentage us-gaap:LongtermDebtType ess:UnsecuredBonds427NANA4.27e-06NANANA4.27e-08NANANA4.27e-08NANANA4.27e-08NANANA4.27e-08NANANA4.27e-08NANANA4.27e-08NANANA4.27e-08NANANA4.27e-08NANANA4.27e-08NANANANANANANA
 us-gaap:DebtInstrumentInterestRateStatedPercentage us-gaap:LongtermDebtType ess:UnsecuredBonds430NANA4.2999999999999995e-06NANANA4.2999999999999995e-08NANANA4.2999999999999995e-08NANANA4.2999999999999995e-08NANANA4.2999999999999995e-08NANANA4.2999999999999995e-08NANANA4.2999999999999995e-08NANANA4.2999999999999995e-08NANANA4.2999999999999995e-08NANANA4.2999999999999995e-08NANANANANANANA
 us-gaap:DebtInstrumentInterestRateStatedPercentage us-gaap:LongtermDebtType ess:UnsecuredBonds437NANA4.3700000000000005e-06NANANA4.37e-08NANANA4.37e-08NANANA4.37e-08NANANA4.37e-08NANANA4.37e-08NANANA4.37e-08NANANA4.37e-08NANANA4.37e-08NANANA4.37e-08NANANANANANANA
 us-gaap:DebtInstrumentInterestRateStatedPercentage us-gaap:LongtermDebtType,us-gaap:SubsequentEventType ess:UnsecuredBonds430,us-gaap:SubsequentEventNANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA

Common Stock Value

us-gaap:CommonStockValue

us-gaap:CommonStockValue


Common
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value7000.06000.06000.07000.07000.07000.07000.07000.07000.07000.07000.07000.07000.07000.07000.06000.06000.06000.06000.06000.06000.06000.06000.06000.06000.06000.06000.06000.06000.04000.04000.03000.03000.03000.03000.03000.03000.03000.03000.03000.03000.03000.03000.03000.0
Percentage of CommonStockValue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Shares Issued

us-gaap:SharesIssued us-gaap:StatementEquityComponents

us-gaap:SharesIssued

us-gaap:CommonStock


Shares
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302015-12-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-312008-12-312007-12-31
Value6564646565656666656565666666666665656565656363623837373737363535340.03388833323131282624
Percentage of SharesIssued100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Weighted Average Number Of Diluted Shares Outstanding

us-gaap:WeightedAverageNumberOfDilutedSharesOutstanding

us-gaap:WeightedAverageNumberOfDilutedSharesOutstanding


Weighted
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302017-06-302017-03-312016-09-302016-06-302016-03-312015-09-302015-06-302015-03-312014-09-302014-06-302014-03-312013-09-302013-06-302013-03-312012-09-302012-06-302012-03-312011-09-302011-06-302011-03-312010-09-302010-06-302010-03-31
Value6565656566656565666666666565656565656464636237373737353434333231292929
Percentage of WeightedAverageNumberOfDilutedSharesOutstanding100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:WeightedAverageNumberOfDilutedSharesOutstanding dei:LegalEntity

ess:EssexPortfolioL.P.


Weighted
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302017-06-30
Value67676767686868686868686868
Percentage of WeightedAverageNumberOfDilutedSharesOutstanding103.5103.5103.5103.5103.5103.5103.5103.5103.4103.4103.4103.4103.4

Weighted Average Number Of Shares Outstanding Basic

us-gaap:WeightedAverageNumberOfSharesOutstandingBasic

us-gaap:WeightedAverageNumberOfSharesOutstandingBasic


Weighted
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302017-06-302017-03-312016-09-302016-06-302016-03-312015-09-302015-06-302015-03-312014-09-302014-06-302014-03-312013-09-302013-06-302013-03-312012-09-302012-06-302012-03-312011-09-302011-06-302011-03-312010-09-302010-06-302010-03-31
Value6564656566656565666666656565656565656464626137373737353434333231292928
Percentage of WeightedAverageNumberOfSharesOutstandingBasic100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:WeightedAverageNumberOfSharesOutstandingBasic dei:LegalEntity

ess:EssexPortfolioL.P.


Weighted
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302017-06-30
Value67676767686868686868686867
Percentage of WeightedAverageNumberOfSharesOutstandingBasic103.5103.5103.5103.5103.5103.5103.5103.5103.4103.4103.4103.4103.4

Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount

us-gaap:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount dei:LegalEntity, us-gaap:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecurities

us-gaap:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount

ess:EssexPortfolioL.P., us-gaap:EmployeeStockOption


Antidilutive
Period End2021-06-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302017-06-30
Value0.1361720.4312530.116380.00.00.1060290.1508520.1851810.3640680.00.00824
Percentage of AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount100.0100.0100.00.00.0100.0100.0100.0100.00.0100.0

us-gaap:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount us-gaap:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecurities

ess:ConvertibleLimitedPartnershipUnits


Antidilutive
Period End2021-06-302021-03-312020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302017-06-302017-03-312016-09-302016-06-302016-03-312015-09-302015-06-302015-03-312014-09-302014-06-302014-03-312013-09-302013-06-302013-03-312012-09-302012-06-302012-03-312011-09-302011-06-302011-03-312010-09-302010-06-30
Value2.293762.2938042.295752.3001812.2983892.2992842.3050642.2729832.2730982.2734132.2511122.2516872.2522342.2209522.2239282.2278652.177632.1820252.1843142.5721112.1735422.2721792.1469232.1514942.0794472.2357832.2390572.2451662.2284042.2303542.2406392.2009072.357321
Percentage of AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount1684.50.0532.31976.40.00.02174.01506.81227.5624.40.027326.30.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:EmployeeStockOption


Antidilutive
Period End2021-06-302021-03-312020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302017-06-302017-03-312016-09-302016-06-302016-03-312015-09-302015-06-302015-03-312014-09-302014-06-302014-03-312013-09-302013-06-30
Value0.1361720.3492520.4312530.116380.00.00.1060290.1508520.1851810.3640680.00.008240.2258950.04090.0879540.07720.02450.02450.00.0083430.0369560.1644420.0388250.260513
Percentage of AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount100.00.0100.0100.00.00.0100.0100.0100.0100.00.0100.00.00.00.00.00.00.00.00.00.00.00.00.0

Earnings Per Share Basic

us-gaap:EarningsPerShareBasic

us-gaap:EarningsPerShareBasic


Earnings
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value1.02.591.471.131.294.771.951.511.41.811.781.231.521.381.571.211.082.732.981.01.11.191.220.650.70.920.630.850.080.580.851.840.670.681.220.461.070.670.420.230.320.270.160.210.320.45
Percentage of EarningsPerShareBasic100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:EarningsPerShareBasic dei:LegalEntity

ess:EssexPortfolioL.P.


Earnings
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value1.02.591.471.131.294.771.951.511.41.811.781.231.521.381.571.211.082.73
Percentage of EarningsPerShareBasic100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Earnings Per Share Diluted

us-gaap:EarningsPerShareDiluted

us-gaap:EarningsPerShareDiluted


Earnings
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value1.02.591.481.131.294.761.951.511.41.811.781.221.521.381.571.211.082.722.981.01.11.191.220.650.70.920.630.850.080.580.851.840.670.681.220.451.070.670.420.230.320.270.160.210.320.45
Percentage of EarningsPerShareDiluted100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:EarningsPerShareDiluted dei:LegalEntity

ess:EssexPortfolioL.P.


Earnings
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value1.02.591.481.131.294.761.951.511.41.811.781.231.521.381.571.211.082.72
Percentage of EarningsPerShareDiluted100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.8100.0100.0100.0100.0100.0100.0

Comprehensive Income Net Of Tax

us-gaap:ComprehensiveIncomeNetOfTax

us-gaap:ComprehensiveIncomeNetOfTax


Comprehensive
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-31
Value651729775883061339988117113831039610983721812036873798943476141578.904273570312752143626178.735168.393
Percentage of ComprehensiveIncomeNetOfTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax2947.77682.70.03219.93765.611701.40.04089.73898.25014.30.023.929.727.90.024.221.354.00.020.822.725.40.014.316.121.70.021.23.416.90.045.120.718.40.010.227.220.60.07.314.27.4

us-gaap:ComprehensiveIncomeNetOfTax dei:LegalEntity

ess:EssexPortfolioL.P.


Comprehensive
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-30
Value67178101789131613810291121117861071001138674
Percentage of ComprehensiveIncomeNetOfTax103.5103.5103.5103.5103.5103.5103.5103.5103.5103.5103.5103.4103.4103.4103.4103.4103.4
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax3051.77953.90.03333.23897.712109.50.04232.44034.65190.20.024.730.828.90.025.122.1
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax ess:EssexPortfolioL.P.3051.77953.90.03333.23897.712109.50.04232.44034.65190.20.00.00.00.00.00.00.0

Comprehensive Income Net Of Tax Attributable To Noncontrolling Interest

us-gaap:ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest

us-gaap:ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest


Comprehensive
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-31
Value4.7918.6585.9775.2475.756136.5446.3645.646.5856.4595.2356.0825.9266.2615.4385.0918.6619.224.74.854.9985.1043.5383.7034.0913.5073.7892.1843.3723.7815.7323.5743.1874.9382.4073.8873.2962.7322.0072.5063.505
Percentage of ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax215.7385.00.0223.6245.1514.00.0262.1249.6282.00.01.51.71.70.01.61.52.60.01.41.51.60.01.21.31.40.01.40.82.10.03.72.32.10.01.72.92.60.01.72.13.1

us-gaap:ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest dei:LegalEntity

ess:EssexPortfolioL.P.


Comprehensive
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-30
Value2.4812.5582.5352.5882.6542.7731.8842.9012.5582.4762.5492.3462.512.5892.5132.5912.614
Percentage of ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest51.829.542.449.346.120.628.845.645.437.639.544.841.343.740.147.651.3
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax111.7113.70.0110.3113.0106.00.0119.5113.2106.00.00.70.70.70.00.80.8
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax ess:EssexPortfolioL.P.111.7113.70.0110.3113.0106.00.0119.5113.2106.00.00.00.00.00.00.00.0

Comprehensive Income Net Of Tax Including Portion Attributable To Noncontrolling Interest

us-gaap:ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest

us-gaap:ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest


Comprehensive
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-31
Value701811038094319140105931231198910910211688771892127378849446516545611130397635305716392920101911
Percentage of ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax3163.48067.60.03443.54010.712215.40.04351.94147.85296.30.025.431.529.60.025.822.856.60.022.224.327.00.015.417.323.10.022.64.319.00.048.823.020.60.011.930.223.10.08.916.310.5

us-gaap:ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest dei:LegalEntity

ess:EssexPortfolioL.P.


Comprehensive
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-30
Value70181103809431914010593123119891091021168877
Percentage of ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax3163.48067.60.03443.54010.712215.40.04351.94147.85296.30.025.431.529.60.025.822.8
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax ess:EssexPortfolioL.P.3163.48067.60.03443.54010.712215.40.04351.94147.85296.30.00.00.00.00.00.00.0

Cost Of Revenue

us-gaap:CostOfRevenue us-gaap:ScheduleOfEquityMethodInvestmentEquityMethodInvesteeName, us-gaap:EquityMethodInvestmentNonconsolidatedInvestee

us-gaap:CostOfRevenue

ess:TotalCoInvestment, us-gaap:EquityMethodInvestmentNonconsolidatedInvesteeOrGroupOfInvestees


Cost
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-30
Value27272825252927
Percentage of CostOfRevenue100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax1216.31215.31195.01101.3982.61203.21231.6
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax ess:TotalCoInvestment us-gaap:EquityMethodInvestmentNonconsolidatedInvesteeOrGroupOfInvestees0.00.00.00.00.00.00.0

Costs And Expenses

us-gaap:CostsAndExpenses

us-gaap:CostsAndExpenses


Costs
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value257257275264267261255242237240243237232236232231226226223219215214218221215207214205217127112106104102999591878685848284777270
Percentage of CostsAndExpenses100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax11598.211464.70.011270.911386.69993.50.010003.810490.010301.00.067.566.768.20.067.366.967.40.066.867.168.20.072.972.773.40.075.983.879.10.068.468.368.50.069.069.168.70.071.371.872.30.073.872.169.5

us-gaap:CostsAndExpenses dei:LegalEntity

ess:EssexPortfolioL.P.


Costs
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-30
Value257257275264267261255242237240243237232236232231226
Percentage of CostsAndExpenses100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax11598.211464.70.011270.911386.69993.50.010003.810490.010301.00.067.566.768.20.067.366.9
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax ess:EssexPortfolioL.P.11598.211464.70.011270.911386.69993.50.010003.810490.010301.00.00.00.00.00.00.00.0

Gains Losses On Extinguishment Of Debt

us-gaap:GainsLossesOnExtinguishmentOfDebt

us-gaap:GainsLossesOnExtinguishmentOfDebt


Gains
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312019-01-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302011-12-312011-09-302011-06-302010-12-312010-09-302010-06-30
Value-16.465-2.5170.937-19.114-5.0270.321-3.4265.4750.3321.3361.40.00.00.00.0-1.7960.0-0.395-0.2110.00.0-40.1280.01221-0.2680.00.0-3.75-1.146-0.1781.0240.0-2.348-1.211-1.45-0.343-0.567-0.2530.00.0-0.01
Percentage of GainsLossesOnExtinguishmentOfDebt100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.00.00.00.0100.00.0100.0100.00.00.0100.00.0100.0100.0100.00.00.0100.0100.0100.0100.00.0100.0100.0100.0100.0100.0100.00.00.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax-741.3-111.90.0-814.4-214.112.30.0225.514.757.20.00.00.00.00.00.00.00.0-0.10.00.00.00.04.37.60.00.00.0-2.30.0-0.10.70.00.0-0.9-1.10.0-0.5-0.20.00.0-0.0

us-gaap:GainsLossesOnExtinguishmentOfDebt dei:LegalEntity

ess:EssexPortfolioL.P.


Gains
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value-16.465-2.5170.937-19.114-5.0270.321-3.4265.4750.3321.3360.00.00.00.0
Percentage of GainsLossesOnExtinguishmentOfDebt100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.00.00.00.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax-741.3-111.90.0-814.4-214.112.30.0225.514.757.20.00.00.00.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax ess:EssexPortfolioL.P.-741.3-111.90.0-814.4-214.112.30.0225.514.757.20.00.00.00.0

General And Administrative Expense

us-gaap:GeneralAndAdministrativeExpense

us-gaap:GeneralAndAdministrativeExpense


General
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value129.812231314131511131316101114109.7881010129.6479.6989.1828.867119.5491012119.5587.0756.6766.0756.2246.6266.8675.2765.7645.46.7536.0666.3716.1157.9746.1756.2195.618
Percentage of GeneralAndAdministrativeExpense100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax550.3436.30.0567.1636.8534.30.0467.3616.2576.40.03.03.24.30.02.83.03.20.02.93.02.90.03.73.23.70.04.23.74.40.03.94.14.40.03.84.34.20.05.15.45.40.05.96.25.6

us-gaap:GeneralAndAdministrativeExpense dei:LegalEntity

ess:EssexPortfolioL.P.


General
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-30
Value129.812231314131511131316101114109.78810
Percentage of GeneralAndAdministrativeExpense100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax550.3436.30.0567.1636.8534.30.0467.3616.2576.40.03.03.24.30.02.83.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax ess:EssexPortfolioL.P.550.3436.30.0567.1636.8534.30.0467.3616.2576.40.00.00.00.00.00.00.0

us-gaap:GeneralAndAdministrativeExpense us-gaap:ScheduleOfEquityMethodInvestmentEquityMethodInvesteeName, us-gaap:EquityMethodInvestmentNonconsolidatedInvestee

ess:TotalCoInvestment, us-gaap:EquityMethodInvestmentNonconsolidatedInvesteeOrGroupOfInvestees


General
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-30
Value4.0294.2815.1613.3924.0832.6032.243
Percentage of GeneralAndAdministrativeExpense33.043.638.822.729.222.916.1
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax181.4190.4219.9144.5156.0107.299.2
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax ess:TotalCoInvestment us-gaap:EquityMethodInvestmentNonconsolidatedInvesteeOrGroupOfInvestees0.00.00.00.00.00.00.0

Gross Profit

us-gaap:GrossProfit us-gaap:ScheduleOfEquityMethodInvestmentEquityMethodInvesteeName, us-gaap:EquityMethodInvestmentNonconsolidatedInvestee

us-gaap:GrossProfit

ess:TotalCoInvestment, us-gaap:EquityMethodInvestmentNonconsolidatedInvesteeOrGroupOfInvestees


Gross
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-30
Value41444846515453
Percentage of GrossProfit100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax1863.71975.52067.91972.61973.82259.32389.2
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax ess:TotalCoInvestment us-gaap:EquityMethodInvestmentNonconsolidatedInvesteeOrGroupOfInvestees0.00.00.00.00.00.00.0

Income Loss From Continuing Operations

us-gaap:IncomeLossFromContinuingOperations

us-gaap:IncomeLossFromContinuingOperations


Income
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-30
Value6416895738431512899921181178010090103797017819565727740534.989211456242543163713118.5055.3378.0164.5666.2249.329
Percentage of IncomeLossFromContinuingOperations100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax2919.77489.70.03138.53597.012036.90.04091.24083.05090.30.023.128.826.20.023.220.953.40.019.922.424.80.019.81.913.60.036.316.316.90.011.728.010.40.07.14.67.00.06.09.3

us-gaap:IncomeLossFromContinuingOperations dei:LegalEntity

ess:EssexPortfolioL.P.


Income
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-30
Value671749976873251331029512312183103941078273
Percentage of IncomeLossFromContinuingOperations103.5103.5103.5103.5103.5103.5103.5103.5103.5103.5103.5103.4103.4103.4103.4103.4103.4
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax3022.77754.20.03249.03723.312456.70.04233.94225.85268.90.023.929.827.10.023.921.6
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax ess:EssexPortfolioL.P.3022.77754.20.03249.03723.312456.70.04233.94225.85268.90.00.00.00.00.00.00.0

Interest Expense

us-gaap:InterestExpense

us-gaap:InterestExpense


Interest
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value50515555545554545453545556545555565454565552565050474745422626262625252524242522222426212020
Percentage of InterestExpense100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax2295.02296.50.02361.72318.92107.30.02261.02394.32297.30.015.716.115.80.016.216.816.30.017.217.316.70.016.417.216.80.016.916.216.10.016.817.216.90.018.118.619.30.018.419.421.70.020.220.120.6

us-gaap:InterestExpense dei:LegalEntity

ess:EssexPortfolioL.P.


Interest
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-30
Value5051555554555454545354555654555556
Percentage of InterestExpense100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax2295.02296.50.02361.72318.92107.30.02261.02394.32297.30.015.716.115.80.016.216.8
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax ess:EssexPortfolioL.P.2295.02296.50.02361.72318.92107.30.02261.02394.32297.30.00.00.00.00.00.00.0

us-gaap:InterestExpense us-gaap:ScheduleOfEquityMethodInvestmentEquityMethodInvesteeName, us-gaap:EquityMethodInvestmentNonconsolidatedInvestee

ess:TotalCoInvestment, us-gaap:EquityMethodInvestmentNonconsolidatedInvesteeOrGroupOfInvestees


Interest
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-30
Value15161919201616
Percentage of InterestExpense31.332.334.935.837.829.329.7
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax718.8742.6825.3829.6796.8662.6711.5
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax ess:TotalCoInvestment us-gaap:EquityMethodInvestmentNonconsolidatedInvesteeOrGroupOfInvestees0.00.00.00.00.00.00.0

Interest Paid Net

us-gaap:InterestPaidNet

us-gaap:InterestPaidNet


Interest
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value41555062455249505341574560406342584863474448454936503748172626262623272222222323192421212019
Percentage of InterestPaidNet100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax1860.82455.00.02665.91953.62005.60.02062.42345.61795.00.013.017.311.60.012.317.114.40.014.314.015.30.016.212.217.80.018.16.916.40.017.017.116.00.016.617.317.70.019.216.621.20.020.720.219.5

us-gaap:InterestPaidNet dei:LegalEntity

ess:EssexPortfolioL.P.


Interest
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-30
Value41555062455249505341574560406342
Percentage of InterestPaidNet100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax1860.82455.00.02665.91953.62005.60.02062.42345.61795.00.013.017.311.60.012.3
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax ess:EssexPortfolioL.P.1860.82455.00.02665.91953.62005.60.02062.42345.61795.00.00.00.00.00.00.0

Net Income Loss Attributable To Noncontrolling Interest

us-gaap:NetIncomeLossAttributableToNoncontrollingInterest

us-gaap:NetIncomeLossAttributableToNoncontrollingInterest


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value4.7698.5055.9045.1815.618136.3646.3655.7866.6476.625.1355.975.7216.0495.3125.0368.5878.9484.6014.8115.0714.8243.5453.6744.0763.3173.722.1253.1263.665.7193.2613.1324.4792.6354.0443.1512.5642.0312.3043.5463.3083.5063.8444.189
Percentage of NetIncomeLossAttributableToNoncontrollingInterest100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax214.7378.20.0220.7239.3525.80.0262.1256.0284.70.01.51.71.60.01.51.52.60.01.41.51.60.01.21.21.40.01.40.81.90.03.72.12.10.01.93.12.50.01.72.03.10.03.43.84.1

us-gaap:NetIncomeLossAttributableToNoncontrollingInterest dei:LegalEntity

ess:EssexPortfolioL.P.


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-30
Value2.4812.5582.5352.5882.6542.7731.8842.9012.5582.4762.5492.3462.512.5892.5132.5912.614
Percentage of NetIncomeLossAttributableToNoncontrollingInterest52.030.142.950.047.220.229.645.644.237.238.545.742.045.341.548.851.9
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax111.7113.70.0110.3113.0106.00.0119.5113.2106.00.00.70.70.70.00.80.8
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax ess:EssexPortfolioL.P.111.7113.70.0110.3113.0106.00.0119.5113.2106.00.00.00.00.00.00.00.0

Net Income Loss Available To Common Stockholders Basic

us-gaap:NetIncomeLossAvailableToCommonStockholdersBasic

us-gaap:NetIncomeLossAvailableToCommonStockholdersBasic


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value641689573843151289992118117801009010379701781956572777942455940534.989213168242543163722137.687108.4184.7786.3779.48213
Percentage of NetIncomeLossAvailableToCommonStockholdersBasic100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax2919.77489.70.03138.53597.012036.90.04091.24083.05090.30.023.128.826.20.023.220.953.40.019.922.424.80.013.915.421.00.019.81.913.60.044.116.316.90.011.728.017.80.06.48.87.40.06.19.513.0

us-gaap:NetIncomeLossAvailableToCommonStockholdersBasic dei:LegalEntity

ess:EssexPortfolioL.P.


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value671749976873251331029512312183103941078273185
Percentage of NetIncomeLossAvailableToCommonStockholdersBasic103.5103.5103.5103.5103.5103.5103.5103.5103.5103.5103.5103.4103.4103.4103.4103.4103.4103.4
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax3022.77754.20.03249.03723.312456.70.04233.94225.85268.90.023.929.827.10.023.921.655.2
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax ess:EssexPortfolioL.P.3022.77754.20.03249.03723.312456.70.04233.94225.85268.90.00.00.00.00.00.00.00.0

Operating Income Loss

us-gaap:OperatingIncomeLoss

us-gaap:OperatingIncomeLoss


Operating
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value9319711112811913011612412411510911311611011211211210910510910599928280756465423344494847454240393834333126272730
Percentage of OperatingIncomeLoss100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax4204.58776.40.05493.75099.54999.50.05108.75511.54954.80.032.533.331.80.032.733.132.60.033.232.931.80.027.127.326.60.024.116.220.90.031.631.731.50.031.030.931.30.028.728.227.70.026.227.930.5

us-gaap:OperatingIncomeLoss dei:LegalEntity

ess:EssexPortfolioL.P.


Operating
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-30
Value93197111128119130116124124115109113116110112112112
Percentage of OperatingIncomeLoss100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax4204.58776.40.05493.75099.54999.50.05108.75511.54954.80.032.533.331.80.032.733.1
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax ess:EssexPortfolioL.P.4204.58776.40.05493.75099.54999.50.05108.75511.54954.80.00.00.00.00.00.00.0

Other Comprehensive Income Loss Cash Flow Hedge Gain Loss After Reclassification And Tax

us-gaap:OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationAndTax

us-gaap:OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationAndTax


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value472000.04407000.01971000.01884000.0779000.0-8782000.03418000.0-12000.0-4361000.0-1993000.0
Percentage of OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationAndTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax21.3196.00.080.333.2-335.60.0-0.5-193.0-85.4

us-gaap:OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationAndTax dei:LegalEntity

ess:EssexPortfolioL.P.


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value472000.04407000.01971000.01884000.0779000.0-8782000.03418000.0-12000.0-4361000.0-1993000.0
Percentage of OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationAndTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax21.3196.00.080.333.2-335.60.0-0.5-193.0-85.4
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax ess:EssexPortfolioL.P.21.3196.00.080.333.2-335.60.0-0.5-193.0-85.4

us-gaap:OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationAndTax dei:LegalEntity, us-gaap:PartnerCapitalComponents

ess:EssexPortfolioL.P., us-gaap:AccumulatedOtherComprehensiveIncome


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value472000.04407000.01971000.01884000.0779000.0-8782000.03418000.0-12000.0-4361000.0-1993000.0
Percentage of OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationAndTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax21.3196.00.080.333.2-335.60.0-0.5-193.0-85.4
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax ess:EssexPortfolioL.P. us-gaap:AccumulatedOtherComprehensiveIncome0.00.00.00.00.00.00.00.00.00.0

us-gaap:OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationAndTax us-gaap:StatementEquityComponents

us-gaap:AccumulatedOtherComprehensiveIncome


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value456000.04257000.01904000.01821000.0754000.0-8486000.03303000.0-12000.0-4214000.0-1926000.0
Percentage of OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationAndTax96.696.696.696.796.896.696.6100.096.696.6
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax20.5189.30.077.632.1-324.30.0-0.5-186.5-82.5
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:AccumulatedOtherComprehensiveIncome0.00.00.00.00.00.00.00.00.00.0

us-gaap:NoncontrollingInterest


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value16000.0150000.067000.063000.025000.0-296000.0115000.00-147000.0-67000.0
Percentage of OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationAndTax3.43.43.43.33.23.43.4-0.03.43.4
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.76.70.02.71.1-11.30.00.0-6.5-2.9
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:NoncontrollingInterest0.00.00.00.00.00.00.00.00.00.0

Other Comprehensive Income Loss Net Of Tax

us-gaap:OtherComprehensiveIncomeLossNetOfTax dei:LegalEntity, us-gaap:PartnerCapitalComponents

us-gaap:OtherComprehensiveIncomeLossNetOfTax

ess:EssexPortfolioL.P., us-gaap:AccumulatedGainLossNetCashFlowHedgeParent


Other
Period End2020-09-302020-06-302020-03-312019-09-30
Value1.8844.061-8.782-0.012
Percentage of OtherComprehensiveIncomeLossNetOfTax100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax80.3173.0-335.6-0.5
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax ess:EssexPortfolioL.P. us-gaap:AccumulatedGainLossNetCashFlowHedgeParent0.00.00.00.0

ess:EssexPortfolioL.P., us-gaap:AccumulatedNetUnrealizedInvestmentGainLoss


Other
Period End2020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-30
Value0.0920.035-0.305-0.0250.040.1560.016
Percentage of OtherComprehensiveIncomeLossNetOfTax4.90.93.5208.30.00.00.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax3.91.5-11.7-1.01.86.70.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax ess:EssexPortfolioL.P. us-gaap:AccumulatedNetUnrealizedInvestmentGainLoss0.00.00.00.00.00.00.0

ess:EssexPortfolioL.P., us-gaap:AccumulatedOtherComprehensiveIncome


Other
Period End2020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-30
Value1.9764.096-9.087-0.037-4.321-1.6562.99
Percentage of OtherComprehensiveIncomeLossNetOfTax104.9100.9103.5308.30.00.00.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax84.2174.4-347.2-1.5-191.2-70.90.9
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax ess:EssexPortfolioL.P. us-gaap:AccumulatedOtherComprehensiveIncome0.00.00.00.00.00.00.0

us-gaap:OtherComprehensiveIncomeLossNetOfTax dei:LegalEntity, us-gaap:StatementEquityComponents

ess:EssexPortfolioL.P., us-gaap:AccumulatedGainLossNetCashFlowHedgeParent


Other
Period End2021-06-302021-03-31
Value0.4724.407
Percentage of OtherComprehensiveIncomeLossNetOfTax0.00.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax21.3196.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax ess:EssexPortfolioL.P. us-gaap:AccumulatedGainLossNetCashFlowHedgeParent0.00.0

ess:EssexPortfolioL.P., us-gaap:AccumulatedNetUnrealizedInvestmentGainLoss


Other
Period End2021-06-302021-03-31
Value0.1720.085
Percentage of OtherComprehensiveIncomeLossNetOfTax0.00.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax7.73.8
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax ess:EssexPortfolioL.P. us-gaap:AccumulatedNetUnrealizedInvestmentGainLoss0.00.0

ess:EssexPortfolioL.P., us-gaap:AccumulatedOtherComprehensiveIncome


Other
Period End2021-06-302021-03-31
Value0.6444.492
Percentage of OtherComprehensiveIncomeLossNetOfTax0.00.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax29.0199.7
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax ess:EssexPortfolioL.P. us-gaap:AccumulatedOtherComprehensiveIncome0.00.0

us-gaap:OtherComprehensiveIncomeLossNetOfTax us-gaap:StatementEquityComponents

us-gaap:AccumulatedGainLossNetCashFlowHedgeParent


Other
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-30
Value0.4564.2571.8213.925-8.486-0.012
Percentage of OtherComprehensiveIncomeLossNetOfTax0.00.096.796.796.6100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax20.5189.377.6167.2-324.3-0.5
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:AccumulatedGainLossNetCashFlowHedgeParent0.00.00.00.00.00.0

us-gaap:AccumulatedNetUnrealizedInvestmentGainLoss


Other
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302017-06-302017-03-31
Value0.1660.0820.0890.033-0.294-0.0240.0390.1510.015-0.018-2.3091.2060.479-1.379
Percentage of OtherComprehensiveIncomeLossNetOfTax0.00.04.70.83.3200.00.00.00.00.00.00.00.00.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax7.53.63.81.4-11.2-1.01.76.50.0-0.0-0.70.40.1-0.4
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:AccumulatedNetUnrealizedInvestmentGainLoss0.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:AccumulatedOtherComprehensiveIncome


Other
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302017-06-302017-03-31
Value0.6224.3391.913.958-8.78-0.036-4.175-1.62.893.2713.7373.7091.6182.139
Percentage of OtherComprehensiveIncomeLossNetOfTax0.00.0101.497.5100.0300.00.00.00.00.00.00.00.00.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax28.0192.981.4168.6-335.5-1.5-184.7-68.50.80.91.11.10.50.6
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:AccumulatedOtherComprehensiveIncome0.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Profit Loss

us-gaap:ProfitLoss

us-gaap:ProfitLoss


Profit
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value69176101789032813510598125124861069610985751872047076868547506444588.428263675292949204227171116128.628101317
Percentage of ProfitLoss100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax3134.47867.90.03359.33836.312562.70.04353.44339.05374.90.024.530.527.80.024.722.455.90.021.323.927.70.015.517.122.90.021.73.216.30.048.719.319.90.014.632.121.30.09.213.711.00.010.013.817.6

us-gaap:ProfitLoss dei:LegalEntity

ess:EssexPortfolioL.P.


Profit
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value6917610178903281351059812512486106961098575187
Percentage of ProfitLoss100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax3134.47867.90.03359.33836.312562.70.04353.44339.05374.90.024.530.527.80.024.722.455.9
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax ess:EssexPortfolioL.P.3134.47867.90.03359.33836.312562.70.04353.44339.05374.90.00.00.00.00.00.00.00.0

us-gaap:ProfitLoss dei:LegalEntity, us-gaap:PartnerCapitalComponents

ess:EssexPortfolioL.P., us-gaap:NoncontrollingInterest


Profit
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value2.4812.5582.5352.5882.6542.7731.8842.9012.5582.4762.5492.3462.512.589
Percentage of ProfitLoss3.61.42.53.32.90.81.42.72.62.02.02.72.42.7
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax111.7113.70.0110.3113.0106.00.0119.5113.2106.00.00.70.70.7
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax ess:EssexPortfolioL.P. us-gaap:NoncontrollingInterest0.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:ProfitLoss dei:LegalEntity, us-gaap:PartnerCapitalComponents, us-gaap:PartnerTypeOfPartnersCapitalAccount

ess:EssexPortfolioL.P., ess:CommonEquity, us-gaap:GeneralPartner


Profit
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value6416895738431512899921181178010090
Percentage of ProfitLoss93.195.294.293.493.895.895.394.094.194.794.794.094.494.1
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax2919.77489.70.03138.53597.012036.90.04091.24083.05090.30.023.128.826.2
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax ess:EssexPortfolioL.P. ess:CommonEquity us-gaap:GeneralPartner0.00.00.00.00.00.00.00.00.00.00.00.00.00.0

ess:EssexPortfolioL.P., ess:CommonEquity, us-gaap:LimitedPartner


Profit
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value2.2885.9473.3692.5932.964104.483.4643.2284.1714.0712.7893.463.132
Percentage of ProfitLoss3.33.43.33.33.33.33.33.33.33.33.33.23.33.2
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax103.0264.40.0110.5126.2419.80.0142.7142.8178.60.00.81.00.9
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax ess:EssexPortfolioL.P. ess:CommonEquity us-gaap:LimitedPartner0.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:ProfitLoss us-gaap:ScheduleOfEquityMethodInvestmentEquityMethodInvesteeName, us-gaap:EquityMethodInvestmentNonconsolidatedInvestee

ess:TotalCoInvestment, us-gaap:EquityMethodInvestmentNonconsolidatedInvesteeOrGroupOfInvestees


Profit
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-30
Value-10.415-9.262-5.728-5.332-1.7195.7546.737
Percentage of ProfitLoss-15.0-5.2-7.3-5.9-0.55.46.9
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax-468.9-411.8-244.1-227.1-65.7237.0298.1
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax ess:TotalCoInvestment us-gaap:EquityMethodInvestmentNonconsolidatedInvesteeOrGroupOfInvestees0.00.00.00.00.00.00.0

us-gaap:ProfitLoss us-gaap:StatementEquityComponents

us-gaap:AccumulatedDistributionsInExcessOfNetIncome


Profit
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-31
Value641689573843151289992118117801009010379701781956572818043466041506.303233370262645173824159.057138.961
Percentage of ProfitLoss93.195.294.293.493.895.895.394.094.194.794.794.094.494.194.593.893.495.495.693.493.794.294.492.592.793.793.386.574.888.290.192.589.089.591.087.090.588.485.781.785.671.6
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax2919.77489.70.03138.53597.012036.90.04091.24083.05090.30.023.128.826.20.023.220.953.40.019.922.426.00.014.315.821.50.018.82.414.40.045.017.217.80.012.729.018.80.07.511.77.9
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:AccumulatedDistributionsInExcessOfNetIncome0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:NoncontrollingInterest


Profit
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-31
Value4.7698.5055.9045.1815.618136.3646.3655.7866.6476.625.1355.975.7216.0495.3125.0368.5878.9484.6014.8115.0714.8243.5453.6744.0763.3173.722.1253.1263.665.7193.2613.1324.4792.6344.0423.1512.5642.0312.3053.546
Percentage of ProfitLoss6.94.85.86.66.24.24.76.05.95.35.36.05.65.95.56.26.64.64.46.66.35.85.67.57.36.37.46.325.211.89.97.511.010.59.013.09.511.614.418.314.428.4
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax214.7378.20.0220.7239.3525.80.0262.1256.0284.70.01.51.71.60.01.51.52.60.01.41.51.60.01.21.21.40.01.40.81.90.03.72.12.10.01.93.02.50.01.72.03.1
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:NoncontrollingInterest0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Revenue From Contract With Customer Excluding Assessed Tax

us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax

us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax


Revenue
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value2.2212.2492.2862.3472.3482.6172.5042.4282.262.335-1037.712350348347345344339335329329321314310304296282278270259161156155153149144138132127124120117113110104100101
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax dei:LegalEntity

ess:EssexPortfolioL.P.


Revenue
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value2.2212.2492.2862.3472.3482.6172.5042.4282.262.335
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax ess:EssexPortfolioL.P.100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:InvestmentType

ess:DelanoRedmondWA


Revenue
Period End2020-07-31
Value51
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax ess:DelanoRedmondWA100.0

ess:GlendaleCA


Revenue
Period End2020-10-31
Value60
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax ess:GlendaleCA100.0

ess:HiddenValleySimiValleyCA


Revenue
Period End2021-02-28
Value105
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax ess:HiddenValleySimiValleyCA100.0

ess:Park20SanMateoCA


Revenue
Period End2021-02-28
Value113
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax ess:Park20SanMateoCA100.0

us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:InvestmentType, us-gaap:SubsequentEventType

ess:GlendaleCA, us-gaap:SubsequentEvent


Revenue
Period End2020-10-31
Value60
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax ess:GlendaleCA us-gaap:SubsequentEvent100.0

ess:OneSouthMarketAndMuseumPark, us-gaap:SubsequentEvent


Revenue
Period End2020-07-31
Value51
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax ess:OneSouthMarketAndMuseumPark us-gaap:SubsequentEvent100.0

Revenue From Contract With Customer Including Assessed Tax

us-gaap:RevenueFromContractWithCustomerIncludingAssessedTax us-gaap:ConsolidationItems, us-gaap:ProductOrService

us-gaap:RevenueFromContractWithCustomerIncludingAssessedTax

us-gaap:CorporateNonSegment, ess:RentalAndOtherPropertyRevenues


Revenue
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value2.8744.541189.6866.1856.4116.4736.299175.9947.7111207.8667.5296.569
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax129.4201.9803.7412.5236.3264.0286.4269.8-1.71.72.23.25.92.32.22.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:CorporateNonSegment ess:RentalAndOtherPropertyRevenues0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:RevenueFromContractWithCustomerIncludingAssessedTax us-gaap:ConsolidationItems, us-gaap:ProductOrService, us-gaap:StatementBusinessSegments

us-gaap:OperatingSegments, ess:RentalAndOtherPropertyRevenues, ess:NorthernCalifornia


Revenue
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value143146148153164144140136132131129128127127126123
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax4989.13230.3788.31588.22652.92248.12164.32164.2739.62194.51680.81163.6625.51623.11680.81877.1
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax6455.96522.56336.36551.66269.75935.96198.95838.3-12.837.537.237.037.037.137.336.8
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:OperatingSegments ess:RentalAndOtherPropertyRevenues ess:NorthernCalifornia0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:OperatingSegments, ess:RentalAndOtherPropertyRevenues, ess:SeattleMetro


Revenue
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value59586060636160605959585858585756
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax2062.21291.2321.3626.21032.2961.7939.9956.3332.9988.2762.6531.1285.4741.0758.2855.4
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax2668.52607.12582.72583.02439.62539.42692.12579.9-5.816.916.916.916.916.916.816.8
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:OperatingSegments ess:RentalAndOtherPropertyRevenues ess:SeattleMetro0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:OperatingSegments, ess:RentalAndOtherPropertyRevenues, ess:SouthernCalifornia


Revenue
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value143143140143155152151151140151150146135148145147
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax4983.63149.4743.61486.52516.42375.82347.72397.6780.92533.31951.11325.8665.21883.41933.92239.3
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax6448.96358.95976.66132.25947.36273.16724.26467.8-13.543.343.142.239.443.042.943.9
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:OperatingSegments ess:RentalAndOtherPropertyRevenues ess:SouthernCalifornia0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:RevenueFromContractWithCustomerIncludingAssessedTax us-gaap:ProductOrService

ess:ManagementAndOtherFeesFromAffiliatesIncome


Revenue
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value2.2212.2492.2862.3472.3482.6172.5042.4282.262.3352.3712.3072.1972.3082.6472.3952.2962.236
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax77.349.50.012.424.242.30.037.934.937.113.238.528.520.913.030.430.534.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0-0.20.70.60.70.80.70.70.7
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax ess:ManagementAndOtherFeesFromAffiliatesIncome0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

ess:RentalAndOtherPropertyRevenues


Revenue
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value348352368368389364359353350348346344342341336333
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax12134.97770.91953.33800.86301.55685.65551.95618.21953.55816.04494.53120.61676.04347.54472.95071.8
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax15702.715690.415699.415679.314893.015012.515901.515155.8-33.899.399.499.399.299.399.399.3
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax ess:RentalAndOtherPropertyRevenues0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Revenues

us-gaap:Revenues

us-gaap:Revenues


Revenues
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value350355362370370392375366361356353350348347345344339335329329321314310304296282278270259161156155153149144138132127124120117113110104100101
Percentage of Revenues100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax15802.715790.415838.715799.415779.314993.014990.615112.516001.515255.8-34.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:Revenues dei:LegalEntity

ess:EssexPortfolioL.P.


Revenuesdei:
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-30
Value350355362370370392375366361356353350348347345344339
Percentage of Revenues100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax15802.715790.415838.715799.415779.314993.014990.615112.516001.515255.8-34.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax ess:EssexPortfolioL.P.15802.715790.415838.715799.415779.314993.014990.615112.516001.515255.80.00.00.00.00.00.00.0

us-gaap:Revenues us-gaap:ScheduleOfEquityMethodInvestmentEquityMethodInvesteeName, us-gaap:EquityMethodInvestmentNonconsolidatedInvestee

ess:TotalCoInvestment, us-gaap:EquityMethodInvestmentNonconsolidatedInvesteeOrGroupOfInvestees


Revenuesus-gaap:
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-30
Value68717672778481
Percentage of Revenues19.520.220.719.519.722.922.6
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax3079.93190.73262.93073.92956.43462.63620.9
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax ess:TotalCoInvestment us-gaap:EquityMethodInvestmentNonconsolidatedInvesteeOrGroupOfInvestees0.00.00.00.00.00.00.0

Assets

us-gaap:Assets

us-gaap:Assets


Assets
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value1274712790129361340113177134501270512997126711257812383125181255512642124951251212524124471221712177122061206712005120121204512085115621166611348663351865085505849364847453443394051403639053825386637323254
Percentage of Assets100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:Assets dei:LegalEntity

ess:EssexPortfolioL.P.


Assetsdei:
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302017-12-31
Value1274712790129361340113177134501270512997126711257812383125181255512495
Percentage of Assets100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets ess:EssexPortfolioL.P.100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:Assets us-gaap:EquityMethodInvestmentNonconsolidatedInvestee

ess:TotalCoInvestment


Assetsus-gaap:
Period End2020-12-312019-12-31
Value44434873
Percentage of Assets34.338.4
Percentage of Assets34.338.4
Percentage of Assets ess:TotalCoInvestment100.0100.0

us-gaap:Assets us-gaap:ScheduleOfEquityMethodInvestmentEquityMethodInvesteeName, us-gaap:EquityMethodInvestmentNonconsolidatedInvestee

ess:TotalCoInvestment, us-gaap:EquityMethodInvestmentNonconsolidatedInvesteeOrGroupOfInvestees


Assetsus-gaap:
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302019-12-31
Value430842784443460746144873
Percentage of Assets33.833.534.334.435.038.4
Percentage of Assets33.833.534.334.435.038.4
Percentage of Assets ess:TotalCoInvestment us-gaap:EquityMethodInvestmentNonconsolidatedInvesteeOrGroupOfInvestees100.0100.0100.0100.0100.0100.0

Liabilities

us-gaap:Liabilities

us-gaap:Liabilities


Liabilities
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value65756542672071026791700062646543628962235954604560446109605960886041601358805949594757805622565656765759540355515352307131843087308429472962274926242473247823942374249423731976
Percentage of Liabilities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets51.651.252.053.051.552.049.350.349.649.548.148.348.148.348.548.748.248.348.148.948.747.946.847.147.147.746.747.647.246.361.460.761.059.761.160.660.561.161.461.362.164.563.660.7

us-gaap:Liabilities dei:LegalEntity

ess:EssexPortfolioL.P.


Liabilitiesdei:
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302017-12-31
Value65756542672071026791700062646543628962235954604560446059
Percentage of Liabilities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets51.651.252.053.051.552.049.350.349.649.548.148.348.148.5
Percentage of Assets ess:EssexPortfolioL.P.51.651.252.053.051.552.049.350.349.649.548.148.348.148.5

us-gaap:Liabilities us-gaap:EquityMethodInvestmentNonconsolidatedInvestee

ess:TotalCoInvestment


Liabilitiesus-gaap:
Period End2020-12-312019-12-31
Value26112442
Percentage of Liabilities38.939.0
Percentage of Assets20.219.2
Percentage of Assets ess:TotalCoInvestment58.850.1

us-gaap:Liabilities us-gaap:ScheduleOfEquityMethodInvestmentEquityMethodInvesteeName, us-gaap:EquityMethodInvestmentNonconsolidatedInvestee

ess:TotalCoInvestment, us-gaap:EquityMethodInvestmentNonconsolidatedInvesteeOrGroupOfInvestees


Liabilitiesus-gaap:
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302019-12-31
Value252924962611269227162442
Percentage of Liabilities38.538.238.937.940.039.0
Percentage of Assets19.819.520.220.120.619.2
Percentage of Assets ess:TotalCoInvestment us-gaap:EquityMethodInvestmentNonconsolidatedInvesteeOrGroupOfInvestees58.758.358.858.458.950.1

Liabilities And Stockholders Equity

us-gaap:LiabilitiesAndStockholdersEquity

us-gaap:LiabilitiesAndStockholdersEquity


Liabilities
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value1274712790129361340113177134501270512997126711257812383125181255512642124951251212524124471221712177122061206712005120121204512085115621166611348663351865085505849364847453443394051403639053825386637323254
Percentage of LiabilitiesAndStockholdersEquity100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:LiabilitiesAndStockholdersEquity dei:LegalEntity

ess:EssexPortfolioL.P.


Liabilities
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302017-12-31
Value1274712790129361340113177134501270512997126711257812383125181255512495
Percentage of LiabilitiesAndStockholdersEquity100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets ess:EssexPortfolioL.P.100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:LiabilitiesAndStockholdersEquity us-gaap:EquityMethodInvestmentNonconsolidatedInvestee

ess:TotalCoInvestment


Liabilities
Period End2020-12-312019-12-31
Value44434873
Percentage of LiabilitiesAndStockholdersEquity34.338.4
Percentage of Assets34.338.4
Percentage of Assets ess:TotalCoInvestment100.0100.0

us-gaap:LiabilitiesAndStockholdersEquity us-gaap:ScheduleOfEquityMethodInvestmentEquityMethodInvesteeName, us-gaap:EquityMethodInvestmentNonconsolidatedInvestee

ess:TotalCoInvestment, us-gaap:EquityMethodInvestmentNonconsolidatedInvesteeOrGroupOfInvestees


Liabilities
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302019-12-31
Value430842784443460746144873
Percentage of LiabilitiesAndStockholdersEquity33.833.534.334.435.038.4
Percentage of Assets33.833.534.334.435.038.4
Percentage of Assets ess:TotalCoInvestment us-gaap:EquityMethodInvestmentNonconsolidatedInvesteeOrGroupOfInvestees100.0100.0100.0100.0100.0100.0

Stockholders Equity

us-gaap:StockholdersEquity

us-gaap:StockholdersEquity


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value59536025600060826166622862206225615461916267631663546368627762656316626461926088611861416237622162346186602259835858202318841880185818701764166515931457143713881326116411491053
Percentage of StockholdersEquity100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets46.747.146.445.446.846.349.047.948.649.250.650.550.650.450.250.150.450.350.750.050.150.952.051.851.851.252.151.351.630.536.337.036.737.936.436.736.736.035.635.634.730.130.832.4

us-gaap:StockholdersEquity dei:LegalEntity, us-gaap:StatementEquityComponents

ess:EssexPortfolioL.P., us-gaap:AccumulatedNetGainLossFromDesignatedOrQualifyingCashFlowHedges


Stockholders
Period End2020-12-312019-12-312018-12-312017-12-31
Value-11.346-10.536-9.593-17.417
Percentage of StockholdersEquity-0.2-0.2-0.2-0.3
Percentage of Assets-0.1-0.1-0.1-0.1
Percentage of Assets ess:EssexPortfolioL.P. us-gaap:AccumulatedNetGainLossFromDesignatedOrQualifyingCashFlowHedges0.00.00.00.0

ess:EssexPortfolioL.P., us-gaap:AccumulatedNetUnrealizedInvestmentGainLoss


Stockholders
Period End2020-12-312019-12-312018-12-312017-12-31
Value0.0430.104-0.1452.188
Percentage of StockholdersEquity0.00.0-0.00.0
Percentage of Assets0.00.0-0.00.0
Percentage of Assets ess:EssexPortfolioL.P. us-gaap:AccumulatedNetUnrealizedInvestmentGainLoss0.00.00.00.0

ess:EssexPortfolioL.P., us-gaap:AccumulatedOtherComprehensiveIncome


Stockholders
Period End2020-12-312019-12-312018-12-312017-12-31
Value-11.303-10.432-9.738-15.229
Percentage of StockholdersEquity-0.2-0.2-0.2-0.2
Percentage of Assets-0.1-0.1-0.1-0.1
Percentage of Assets ess:EssexPortfolioL.P. us-gaap:AccumulatedOtherComprehensiveIncome0.00.00.00.0

us-gaap:StockholdersEquity us-gaap:StatementEquityComponents

us-gaap:AccumulatedNetGainLossFromDesignatedOrQualifyingCashFlowHedges


Stockholders
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312016-03-312015-12-312015-09-302014-12-31
Value-14.771-13.989-13.077-20.641-32.963-50.811-48.366-54.382-56.003
Percentage of StockholdersEquity-0.2-0.2-0.2-0.3-0.5-0.8-0.8-0.9-0.9
Percentage of Assets-0.1-0.1-0.1-0.2-0.3-0.4-0.4-0.5-0.5
Percentage of Assets us-gaap:AccumulatedNetGainLossFromDesignatedOrQualifyingCashFlowHedges0.00.00.00.00.00.00.00.00.0

us-gaap:AccumulatedNetUnrealizedInvestmentGainLoss


Stockholders
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312016-03-312015-12-312015-09-302014-12-31
Value0.0420.101-0.142.1950.8656.6626.3554.0254.551
Percentage of StockholdersEquity0.00.0-0.00.00.00.10.10.10.1
Percentage of Assets0.00.0-0.00.00.00.10.10.00.0
Percentage of Assets us-gaap:AccumulatedNetUnrealizedInvestmentGainLoss0.00.00.00.00.00.00.00.00.0

us-gaap:AccumulatedOtherComprehensiveIncome


Stockholders
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312016-03-312015-12-312015-09-302014-12-31
Value-14.729-13.888-13.217-18.446-32.098-44.149-42.011-50.357-51.452
Percentage of StockholdersEquity-0.2-0.2-0.2-0.3-0.5-0.7-0.7-0.8-0.9
Percentage of Assets-0.1-0.1-0.1-0.1-0.3-0.4-0.3-0.4-0.4
Percentage of Assets us-gaap:AccumulatedOtherComprehensiveIncome0.00.00.00.00.00.00.00.00.0

Cash And Cash Equivalents At Carrying Value

us-gaap:CashAndCashEquivalentsAtCarryingValue

us-gaap:CashAndCashEquivalentsAtCarryingValue


Cash
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312008-12-312007-12-31
Value4810373558246271707438107134157160121444618384641951824829353021925171719189.5092030181.9434.13213129.028.8099713148.3672220419.956
Percentage of CashAndCashEquivalentsAtCarryingValue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.40.80.64.21.92.00.60.60.30.91.11.31.31.00.40.41.50.70.51.61.50.40.20.30.31.80.20.20.20.30.40.20.40.60.40.00.10.30.30.20.22.50.40.00.00.00.60.00.0

us-gaap:CashAndCashEquivalentsAtCarryingValue dei:LegalEntity

ess:EssexPortfolioL.P.


Cash
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302017-12-31
Value481037355824627170743810713415716044
Percentage of CashAndCashEquivalentsAtCarryingValue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.40.80.64.21.92.00.60.60.30.91.11.31.30.4
Percentage of Assets ess:EssexPortfolioL.P.0.40.80.64.21.92.00.60.60.30.91.11.31.30.4

Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents

us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents

us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents


Cash
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312015-12-31
Value58113845692562828191541241511741771396163199100170123
Percentage of CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.50.90.64.21.92.10.60.70.41.01.21.41.41.10.50.51.60.81.41.0

us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents dei:LegalEntity

ess:EssexPortfolioL.P.


Cash
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302016-12-312015-12-31
Value58113845692562828191541241511741771396163199170123
Percentage of CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.50.90.64.21.92.10.60.70.41.01.21.41.41.10.50.51.61.41.0
Percentage of Assets ess:EssexPortfolioL.P.0.50.90.64.21.92.10.60.70.41.01.21.41.40.00.50.00.00.00.0

Investments In Affiliates Subsidiaries Associates And Joint Ventures

us-gaap:InvestmentsInAffiliatesSubsidiariesAssociatesAndJointVentures

us-gaap:InvestmentsInAffiliatesSubsidiariesAssociatesAndJointVentures


Investments
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-08-312015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-08-312013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value10379621018101810089971335141313241307130012671291129011551124108110711161112211031069103610362010441057103610439647166776748.561857957147743640138327519713310770
Percentage of InvestmentsInAffiliatesSubsidiariesAssociatesAndJointVentures100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets8.17.57.97.67.77.410.510.910.410.410.510.110.310.29.39.08.68.69.59.29.08.98.68.60.08.78.79.08.98.510.813.113.30.012.211.711.810.510.19.99.57.15.23.42.92.2

Finite Lived Intangible Assets Net

us-gaap:FiniteLivedIntangibleAssetsNet

us-gaap:FiniteLivedIntangibleAssetsNet


Finite
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-31
Value4.71.20.10.41.42.857474.513
Percentage of FiniteLivedIntangibleAssetsNet100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.00.00.00.00.00.00.40.1

Operating Lease Right Of Use Asset

us-gaap:OperatingLeaseRightOfUseAsset

us-gaap:OperatingLeaseRightOfUseAsset


Operating
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-31
Value707172727374747576760.0
Percentage of OperatingLeaseRightOfUseAsset100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0
Percentage of Assets0.60.60.60.50.60.60.60.60.60.60.0

us-gaap:OperatingLeaseRightOfUseAsset dei:LegalEntity

ess:EssexPortfolioL.P.


Operating
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value70717272737474757676
Percentage of OperatingLeaseRightOfUseAsset100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.60.60.60.50.60.60.60.60.60.6
Percentage of Assets ess:EssexPortfolioL.P.0.60.60.60.50.60.60.60.60.60.6

us-gaap:OperatingLeaseRightOfUseAsset us-gaap:BalanceSheetLocation

ess:OperatingLeaseAssets


Operating
Period End2020-12-312019-12-312019-09-302019-06-302019-03-31
Value7274757676
Percentage of OperatingLeaseRightOfUseAsset100.0100.0100.0100.0100.0
Percentage of Assets0.60.60.60.60.6
Percentage of Assets ess:OperatingLeaseAssets0.00.00.00.00.0

Equity Securities Fv Ni

us-gaap:EquitySecuritiesFvNi

us-gaap:EquitySecuritiesFvNi


Equity
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-31
Value2.52.42.52.72.73.23.64.96.86.86.7
Percentage of EquitySecuritiesFvNi100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.00.00.00.00.00.00.00.00.10.10.1

us-gaap:EquitySecuritiesFvNi us-gaap:FinancialInstrument

us-gaap:CommonStock


Equity
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302017-12-31
Value112103967247403738404438434237
Percentage of EquitySecuritiesFvNi4501.24305.63843.02673.61748.01276.41051.9787.5597.3650.3568.10.00.00.0
Percentage of Assets0.90.80.70.50.40.30.30.30.30.40.30.30.30.3
Percentage of Assets us-gaap:CommonStock0.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:DebtSecurities


Equity
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302017-12-31
Value6160503228293028282131313127
Percentage of EquitySecuritiesFvNi2477.32532.62025.21194.91069.4906.5837.0580.8414.9310.7468.10.00.00.0
Percentage of Assets0.50.50.40.20.20.20.20.20.20.20.30.30.30.2
Percentage of Assets us-gaap:DebtSecurities0.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Other Assets

us-gaap:OtherAssets us-gaap:EquityMethodInvestmentNonconsolidatedInvestee

us-gaap:OtherAssets

ess:TotalCoInvestment


Other
Period End2020-12-312019-12-31
Value200139
Percentage of OtherAssets100.0100.0
Percentage of Assets1.61.1
Percentage of Assets ess:TotalCoInvestment4.52.9

us-gaap:OtherAssets us-gaap:ScheduleOfEquityMethodInvestmentEquityMethodInvesteeName, us-gaap:EquityMethodInvestmentNonconsolidatedInvestee

ess:TotalCoInvestment, us-gaap:EquityMethodInvestmentNonconsolidatedInvesteeOrGroupOfInvestees


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302019-12-31
Value225224200216215139
Percentage of OtherAssets0.00.0100.00.00.0100.0
Percentage of Assets1.81.81.61.61.61.1
Percentage of Assets ess:TotalCoInvestment us-gaap:EquityMethodInvestmentNonconsolidatedInvesteeOrGroupOfInvestees5.25.24.54.74.72.9

Long Term Debt

us-gaap:LongTermDebt

us-gaap:LongTermDebt


Long
Period End2021-06-302021-03-312020-12-312020-09-302019-12-312018-12-312017-12-312016-12-312015-12-312015-09-302014-12-312013-12-312012-12-312011-12-312010-12-31
Value6089614064366509901806200821912215525522451404156517451832
Percentage of LongTermDebt100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets47.848.05.049.67.814.616.117.918.543.819.427.132.343.249.1

us-gaap:LongTermDebt us-gaap:LongtermDebtType

ess:MortgageNotesPayable


Long
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-312010-12-31
Value419736153817391911192520561236136315021563
Percentage of LongTermDebt65.274.385.286.687.286.991.688.187.186.085.3
Percentage of Assets3.25.812.413.915.616.017.823.828.137.241.9
Percentage of Assets ess:MortgageNotesPayable0.00.00.00.00.00.00.00.00.00.00.0

ess:MultifamilyHousingMortgageRevenueBonds


Long
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-312010-12-31
Value224254268268279289189167201243269
Percentage of LongTermDebt34.825.714.813.412.813.18.411.912.914.014.7
Percentage of Assets1.72.02.22.12.32.41.63.24.26.07.2
Percentage of Assets ess:MultifamilyHousingMortgageRevenueBonds0.00.00.00.00.00.00.00.00.00.00.0

us-gaap:SecuredDebt


Long
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-31
Value64198717951980214821582162
Percentage of LongTermDebt99.799.799.498.698.097.496.3
Percentage of Assets5.07.814.515.817.618.018.7
Percentage of Assets us-gaap:SecuredDebt0.00.00.00.00.00.00.0

us-gaap:UnsecuredDebt


Long
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-31
Value4900480038253525326530902590
Percentage of LongTermDebt761.4484.5211.7175.5149.0139.5115.3
Percentage of Assets37.937.830.928.226.725.722.4
Percentage of Assets us-gaap:UnsecuredDebt0.00.00.00.00.00.00.0

Minority Interest

us-gaap:MinorityInterest

us-gaap:MinorityInterest


Minority
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value183185182184186189183189190125126119120123119118121124100959699991101101141131101131533113113111113115115117115116117119203205220
Percentage of MinorityInterest100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets1.41.51.41.41.41.41.41.51.51.01.01.01.01.01.00.91.01.00.80.80.80.80.80.90.90.91.00.91.023.12.22.22.22.32.42.52.72.92.93.03.15.35.56.8

us-gaap:MinorityInterest dei:LegalEntity

ess:EssexPortfolioL.P.


Minority
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302017-12-31
Value1221221211211221231221291296364646466
Percentage of MinorityInterest67.066.166.366.065.464.966.868.367.950.750.754.053.655.6
Percentage of Assets1.01.00.90.90.90.91.01.01.00.50.50.50.50.5
Percentage of Assets ess:EssexPortfolioL.P.1.01.00.90.90.90.91.01.01.00.50.50.50.50.5

Lessee Operating Lease Liability Payments Due Year Two

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearTwo

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearTwo


Lessee
Period End2020-12-31
Value6987000.0
Percentage of LesseeOperatingLeaseLiabilityPaymentsDueYearTwo100.0
Percentage of Assets0.1

Lessee Operating Lease Liability Payments Due Year Three

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearThree

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearThree


Lessee
Period End2020-12-31
Value6962000.0
Percentage of LesseeOperatingLeaseLiabilityPaymentsDueYearThree100.0
Percentage of Assets0.1

Lessee Operating Lease Liability Payments Due Year Four

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearFour

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearFour


Lessee
Period End2020-12-31
Value6690000.0
Percentage of LesseeOperatingLeaseLiabilityPaymentsDueYearFour100.0
Percentage of Assets0.1

Lessee Operating Lease Liability Payments Due Year Five

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearFive

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearFive


Lessee
Period End2020-12-31
Value6310000.0
Percentage of LesseeOperatingLeaseLiabilityPaymentsDueYearFive100.0
Percentage of Assets0.0

Lessee Operating Lease Liability Payments Due After Year Five

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive


Lessee
Period End2020-12-31
Value140
Percentage of LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive100.0
Percentage of Assets1.1

Operating Lease Liability

us-gaap:OperatingLeaseLiability

us-gaap:OperatingLeaseLiability


Operating
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value72737474757676777879
Percentage of OperatingLeaseLiability100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.60.60.60.60.60.60.60.60.60.6

us-gaap:OperatingLeaseLiability dei:LegalEntity

ess:EssexPortfolioL.P.


Operating
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value72737474757676777879
Percentage of OperatingLeaseLiability100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.60.60.60.60.60.60.60.60.60.6
Percentage of Assets ess:EssexPortfolioL.P.0.60.60.60.60.60.60.60.60.60.6

us-gaap:OperatingLeaseLiability us-gaap:BalanceSheetLocation

ess:OperatingLeaseLiabilities


Operating
Period End2020-12-312019-12-312019-09-302019-06-302019-03-31
Value7476777879
Percentage of OperatingLeaseLiability100.0100.0100.0100.0100.0
Percentage of Assets0.60.60.60.60.6
Percentage of Assets ess:OperatingLeaseLiabilities0.00.00.00.00.0

Lessee Operating Lease Liability Payments Due

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDue

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDue


Lessee
Period End2020-12-31
Value174
Percentage of LesseeOperatingLeaseLiabilityPaymentsDue100.0
Percentage of Assets1.3

Lessee Operating Lease Liability Undiscounted Excess Amount

us-gaap:LesseeOperatingLeaseLiabilityUndiscountedExcessAmount

us-gaap:LesseeOperatingLeaseLiabilityUndiscountedExcessAmount


Lessee
Period End2020-12-31
Value100
Percentage of LesseeOperatingLeaseLiabilityUndiscountedExcessAmount100.0
Percentage of Assets0.8

Stockholders Equity

us-gaap:StockholdersEquity

us-gaap:StockholdersEquity


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value59536025600060826166622862206225615461916267631663546368627762656316626461926088611861416237622162346186602259835858202318841880185818701764166515931457143713881326116411491053
Percentage of StockholdersEquity100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets46.747.146.445.446.846.349.047.948.649.250.650.550.650.450.250.150.450.350.750.050.150.952.051.851.851.252.151.351.630.536.337.036.737.936.436.736.736.035.635.634.730.130.832.4

us-gaap:StockholdersEquity dei:LegalEntity, us-gaap:StatementEquityComponents

ess:EssexPortfolioL.P., us-gaap:AccumulatedNetGainLossFromDesignatedOrQualifyingCashFlowHedges


Stockholders
Period End2020-12-312019-12-312018-12-312017-12-31
Value-11.346-10.536-9.593-17.417
Percentage of StockholdersEquity-0.2-0.2-0.2-0.3
Percentage of Assets-0.1-0.1-0.1-0.1
Percentage of Assets ess:EssexPortfolioL.P. us-gaap:AccumulatedNetGainLossFromDesignatedOrQualifyingCashFlowHedges0.00.00.00.0

ess:EssexPortfolioL.P., us-gaap:AccumulatedNetUnrealizedInvestmentGainLoss


Stockholders
Period End2020-12-312019-12-312018-12-312017-12-31
Value0.0430.104-0.1452.188
Percentage of StockholdersEquity0.00.0-0.00.0
Percentage of Assets0.00.0-0.00.0
Percentage of Assets ess:EssexPortfolioL.P. us-gaap:AccumulatedNetUnrealizedInvestmentGainLoss0.00.00.00.0

ess:EssexPortfolioL.P., us-gaap:AccumulatedOtherComprehensiveIncome


Stockholders
Period End2020-12-312019-12-312018-12-312017-12-31
Value-11.303-10.432-9.738-15.229
Percentage of StockholdersEquity-0.2-0.2-0.2-0.2
Percentage of Assets-0.1-0.1-0.1-0.1
Percentage of Assets ess:EssexPortfolioL.P. us-gaap:AccumulatedOtherComprehensiveIncome0.00.00.00.0

us-gaap:StockholdersEquity us-gaap:StatementEquityComponents

us-gaap:AccumulatedNetGainLossFromDesignatedOrQualifyingCashFlowHedges


Stockholders
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312016-03-312015-12-312015-09-302014-12-31
Value-14.771-13.989-13.077-20.641-32.963-50.811-48.366-54.382-56.003
Percentage of StockholdersEquity-0.2-0.2-0.2-0.3-0.5-0.8-0.8-0.9-0.9
Percentage of Assets-0.1-0.1-0.1-0.2-0.3-0.4-0.4-0.5-0.5
Percentage of Assets us-gaap:AccumulatedNetGainLossFromDesignatedOrQualifyingCashFlowHedges0.00.00.00.00.00.00.00.00.0

us-gaap:AccumulatedNetUnrealizedInvestmentGainLoss


Stockholders
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312016-03-312015-12-312015-09-302014-12-31
Value0.0420.101-0.142.1950.8656.6626.3554.0254.551
Percentage of StockholdersEquity0.00.0-0.00.00.00.10.10.10.1
Percentage of Assets0.00.0-0.00.00.00.10.10.00.0
Percentage of Assets us-gaap:AccumulatedNetUnrealizedInvestmentGainLoss0.00.00.00.00.00.00.00.00.0

us-gaap:AccumulatedOtherComprehensiveIncome


Stockholders
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312016-03-312015-12-312015-09-302014-12-31
Value-14.729-13.888-13.217-18.446-32.098-44.149-42.011-50.357-51.452
Percentage of StockholdersEquity-0.2-0.2-0.2-0.3-0.5-0.7-0.7-0.8-0.9
Percentage of Assets-0.1-0.1-0.1-0.1-0.3-0.4-0.3-0.4-0.4
Percentage of Assets us-gaap:AccumulatedOtherComprehensiveIncome0.00.00.00.00.00.00.00.00.0

Stockholders Equity Including Portion Attributable To Noncontrolling Interest

us-gaap:StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest

us-gaap:StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-312008-12-312007-12-31
Value6136621061836267635264176403641563456317639364366474649263966383643863896292618362156241633763316344630061366093597235571998199319701984188017811710157315531506144613671355127310851084
Percentage of StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets48.148.647.846.848.247.750.449.450.150.251.651.451.651.451.251.051.451.351.550.850.951.752.852.752.752.153.152.252.653.638.539.238.940.238.839.339.438.838.538.637.835.436.339.10.00.0

us-gaap:StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest dei:LegalEntity, us-gaap:PartnerCapitalComponents

ess:EssexPortfolioL.P., us-gaap:AccumulatedGainLossNetCashFlowHedgeParent


Stockholders
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302018-12-31
Value-13.373-15.257-19.318-10.536-15.778-15.766-9.593
Percentage of StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest-0.2-0.2-0.3-0.2-0.2-0.2-0.2
Percentage of Assets-0.1-0.1-0.1-0.1-0.1-0.1-0.1
Percentage of Assets ess:EssexPortfolioL.P. us-gaap:AccumulatedGainLossNetCashFlowHedgeParent0.00.00.00.00.00.00.0

ess:EssexPortfolioL.P., us-gaap:AccumulatedNetUnrealizedInvestmentGainLoss


Stockholders
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302017-12-31
Value-0.074-0.166-0.2010.1040.0260.0510.011-0.145-0.121-0.1372.188
Percentage of StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest-0.0-0.0-0.00.00.00.00.0-0.0-0.0-0.00.0
Percentage of Assets-0.0-0.0-0.00.00.00.00.0-0.0-0.0-0.00.0
Percentage of Assets ess:EssexPortfolioL.P. us-gaap:AccumulatedNetUnrealizedInvestmentGainLoss0.00.00.00.00.00.00.00.00.00.00.0

ess:EssexPortfolioL.P., us-gaap:AccumulatedOtherComprehensiveIncome


Stockholders
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302017-12-31
Value-13.447-15.423-19.519-10.432-15.752-15.715-11.394-9.738-4.908-7.898-15.229
Percentage of StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest-0.2-0.2-0.3-0.2-0.2-0.2-0.2-0.2-0.1-0.1-0.2
Percentage of Assets-0.1-0.1-0.1-0.1-0.1-0.1-0.1-0.1-0.0-0.1-0.1
Percentage of Assets ess:EssexPortfolioL.P. us-gaap:AccumulatedOtherComprehensiveIncome0.00.00.00.00.00.00.00.00.00.00.0

us-gaap:StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest dei:LegalEntity, us-gaap:StatementEquityComponents

ess:EssexPortfolioL.P., us-gaap:AccumulatedGainLossNetCashFlowHedgeParent


Stockholders
Period End2021-06-302021-03-312020-12-31
Value-6.467-6.939-11.346
Percentage of StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest-0.1-0.1-0.2
Percentage of Assets-0.1-0.1-0.1
Percentage of Assets ess:EssexPortfolioL.P. us-gaap:AccumulatedGainLossNetCashFlowHedgeParent0.00.00.0

ess:EssexPortfolioL.P., us-gaap:AccumulatedNetUnrealizedInvestmentGainLoss


Stockholders
Period End2021-06-302021-03-312020-12-31
Value0.30.1280.043
Percentage of StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest0.00.00.0
Percentage of Assets0.00.00.0
Percentage of Assets ess:EssexPortfolioL.P. us-gaap:AccumulatedNetUnrealizedInvestmentGainLoss0.00.00.0

ess:EssexPortfolioL.P., us-gaap:AccumulatedOtherComprehensiveIncome


Stockholders
Period End2021-06-302021-03-312020-12-31
Value-6.167-6.811-11.303
Percentage of StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest-0.1-0.1-0.2
Percentage of Assets-0.0-0.1-0.1
Percentage of Assets ess:EssexPortfolioL.P. us-gaap:AccumulatedOtherComprehensiveIncome0.00.00.0

us-gaap:StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest us-gaap:EquityMethodInvestmentNonconsolidatedInvestee

ess:TotalCoInvestment


Stockholders
Period End2020-12-312019-12-31
Value16422313
Percentage of StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest26.636.1
Percentage of Assets12.718.2
Percentage of Assets ess:TotalCoInvestment37.047.5

us-gaap:StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest us-gaap:ScheduleOfEquityMethodInvestmentEquityMethodInvesteeName, us-gaap:EquityMethodInvestmentNonconsolidatedInvestee

ess:TotalCoInvestment, us-gaap:EquityMethodInvestmentNonconsolidatedInvesteeOrGroupOfInvestees


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302019-12-31
Value158315931642173517332313
Percentage of StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest25.825.726.627.727.336.1
Percentage of Assets12.412.512.713.013.218.2
Percentage of Assets ess:TotalCoInvestment us-gaap:EquityMethodInvestmentNonconsolidatedInvesteeOrGroupOfInvestees36.837.237.037.737.647.5

us-gaap:StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest us-gaap:StatementEquityComponents

us-gaap:AccumulatedDistributionsInExcessOfNetIncome


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-312008-12-312007-12-31
Value-899.663-828.625-861.193-821.841-760.028-708.697-887.619-887.521-857.994-822.087-812.796-808.085-766.193-743.773-833.726-821.732-785.939-741.204-805.409-896.12-856.815-824.046-797.329-782.801-731.181-684.436-650.797-608.498-575.772-498.368-474.426-461.005-484.615-464.391-444.466-448.142-425.058-422.919-408.066-386.752-359.662-338.273-313.308-222.952-141.336-90.23
Percentage of StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest-14.7-13.3-13.9-13.1-12.0-11.0-13.9-13.8-13.5-13.0-12.7-12.6-11.8-11.5-13.0-12.9-12.2-11.6-12.8-14.5-13.8-13.2-12.6-12.4-11.5-10.9-10.6-10.0-9.6-14.0-23.7-23.1-24.6-23.4-23.6-25.2-24.9-26.9-26.3-25.7-24.9-24.7-23.1-17.5-13.0-8.3
Percentage of Assets-7.1-6.5-6.7-6.1-5.8-5.3-7.0-6.8-6.8-6.5-6.6-6.5-6.1-5.9-6.7-6.6-6.3-6.0-6.6-7.4-7.0-6.8-6.6-6.5-6.1-5.7-5.6-5.2-5.1-7.5-9.1-9.1-9.6-9.4-9.2-9.9-9.8-10.4-10.1-9.9-9.4-8.7-8.4-6.90.00.0
Percentage of Assets us-gaap:AccumulatedDistributionsInExcessOfNetIncome0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:AccumulatedGainLossNetCashFlowHedgeParent


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302018-12-31
Value-10.058-10.514-14.771-16.729-18.55-22.475-13.989-19.054-19.042-13.077
Percentage of StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest-0.2-0.2-0.2-0.3-0.3-0.4-0.2-0.3-0.3-0.2
Percentage of Assets-0.1-0.1-0.1-0.1-0.1-0.2-0.1-0.1-0.2-0.1
Percentage of Assets us-gaap:AccumulatedGainLossNetCashFlowHedgeParent0.00.00.00.00.00.00.00.00.00.0

us-gaap:AccumulatedNetUnrealizedInvestmentGainLoss


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-31
Value0.290.1240.042-0.071-0.16-0.1930.1010.0260.050.011-0.14-0.117-0.132-0.1142.1951.171-0.035-0.5140.865
Percentage of StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest0.00.00.0-0.0-0.0-0.00.00.00.00.0-0.0-0.0-0.0-0.00.00.0-0.0-0.00.0
Percentage of Assets0.00.00.0-0.0-0.0-0.00.00.00.00.0-0.0-0.0-0.0-0.00.00.0-0.0-0.00.0
Percentage of Assets us-gaap:AccumulatedNetUnrealizedInvestmentGainLoss0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:AccumulatedOtherComprehensiveIncome


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-312008-12-312007-12-31
Value-9.768-10.39-14.729-16.8-18.71-22.668-13.888-19.028-18.992-14.817-13.217-8.548-11.438-14.709-18.446-24.632-28.341-29.959-32.098-40.095-43.007-44.149-42.011-50.357-50.152-50.868-51.452-51.408-53.794-56.395-60.472-62.589-62.813-68.28-69.261-76.449-72.915-70.565-72.771-75.237-74.918-77.785-77.217-24.206-75.424-8.988
Percentage of StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest-0.2-0.2-0.2-0.3-0.3-0.4-0.2-0.3-0.3-0.2-0.2-0.1-0.2-0.2-0.3-0.4-0.4-0.5-0.5-0.6-0.7-0.7-0.7-0.8-0.8-0.8-0.8-0.8-0.9-1.6-3.0-3.1-3.2-3.4-3.7-4.3-4.3-4.5-4.7-5.0-5.2-5.7-5.7-1.9-6.9-0.8
Percentage of Assets-0.1-0.1-0.1-0.1-0.1-0.2-0.1-0.1-0.1-0.1-0.1-0.1-0.1-0.1-0.1-0.2-0.2-0.2-0.3-0.3-0.4-0.4-0.3-0.4-0.4-0.4-0.4-0.4-0.5-0.9-1.2-1.2-1.2-1.4-1.4-1.7-1.7-1.7-1.8-1.9-2.0-2.0-2.1-0.70.00.0
Percentage of Assets us-gaap:AccumulatedOtherComprehensiveIncome0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:AdditionalPaidInCapital


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-312008-12-312007-12-31
Value686268646876692169446959712171317031702870937133713171277129711171317035702970247017701070036980694168486651656964142505234523302331232922042116201718771844177616871555151512751043877
Percentage of StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest111.8110.5111.2110.4109.3108.4111.2111.2110.8111.3110.9110.8110.1109.8111.5111.4110.8110.1111.7113.6112.9112.3110.5110.2109.4108.7108.4107.8107.470.4117.4116.9118.4117.4117.3118.8118.0119.3118.7117.9116.7113.7111.8100.196.180.9
Percentage of Assets53.853.753.251.652.751.756.154.955.555.957.357.056.856.457.156.856.956.557.557.757.558.158.358.157.656.757.556.356.537.845.245.846.147.245.546.746.546.345.745.544.140.240.639.20.00.0
Percentage of Assets us-gaap:AdditionalPaidInCapital0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:CommonStock


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302015-12-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-312008-12-312007-12-31
Value0.0070.0060.0060.0070.0070.0070.0070.0070.0070.0070.0070.0070.0070.0070.0070.0060.0060.0060.0060.0060.0060.0060.0060.0060.0040.0040.0030.0030.0030.0030.0030.0030.0030.0030.0030.0030.0030.0030.0030.0030.003
Percentage of StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0
Percentage of Assets0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0
Percentage of Assets us-gaap:CommonStock0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:NoncontrollingInterest


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-312008-12-312007-12-31
Value183185182184186189183189190125126119120123119118121124100959699991101101141131101131533113113111113115115117115116117119203205220233281
Percentage of StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest3.03.03.02.92.93.02.93.03.02.02.01.91.91.91.91.91.92.01.61.51.61.61.61.71.71.81.81.81.943.15.75.75.75.76.16.56.87.47.57.88.314.915.117.321.525.9
Percentage of Assets1.41.51.41.41.41.41.41.51.51.01.01.01.01.01.00.91.01.00.80.80.80.80.80.90.90.91.00.91.023.12.22.22.22.32.42.52.72.92.93.03.15.35.56.80.00.0
Percentage of Assets us-gaap:NoncontrollingInterest0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Common Stock Value

us-gaap:CommonStockValue

us-gaap:CommonStockValue


Common
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value7000.06000.06000.07000.07000.07000.07000.07000.07000.07000.07000.07000.07000.07000.07000.06000.06000.06000.06000.06000.06000.06000.06000.06000.06000.06000.06000.06000.06000.04000.04000.03000.03000.03000.03000.03000.03000.03000.03000.03000.03000.03000.03000.03000.0
Percentage of CommonStockValue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Additional Paid In Capital

us-gaap:AdditionalPaidInCapital

us-gaap:AdditionalPaidInCapital


Additional
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value68626864687669216944695971217131703170287093713371317127712971117131703570297024701770107003698069416848665165696414250523452330233123292204211620171877184417761687155515151275
Percentage of AdditionalPaidInCapital100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets53.853.753.251.652.751.756.154.955.555.957.357.056.856.457.156.856.956.557.557.757.558.158.358.157.656.757.556.356.537.845.245.846.147.245.546.746.546.345.745.544.140.240.639.2

Accumulated Other Comprehensive Income Loss Net Of Tax

us-gaap:AccumulatedOtherComprehensiveIncomeLossNetOfTax

us-gaap:AccumulatedOtherComprehensiveIncomeLossNetOfTax


Accumulated
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value-9768000.0-10390000.0-14729000.0-16800000.0-18710000.0-22668000.0-13888000.0-19028000.0-18992000.0-14817000.0-13217000.0-8548000.0-11438000.0-14709000.0-18446000.0-24632000.0-28341000.0-29959000.0-32098000.0-40095000.0-43007000.0-44149000.0-42011000.0-50357000.0-50152000.0-50868000.0-51452000.0-51408000.0-53794000.0-56395000.0-60472000.0-62589000.0-62813000.0-68280000.0-69261000.0-76449000.0-72915000.0-70565000.0-72771000.0-75237000.0-74918000.0-77785000.0-77217000.0-24206000.0
Percentage of AccumulatedOtherComprehensiveIncomeLossNetOfTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets-0.1-0.1-0.1-0.1-0.1-0.2-0.1-0.1-0.1-0.1-0.1-0.1-0.1-0.1-0.1-0.2-0.2-0.2-0.3-0.3-0.4-0.4-0.3-0.4-0.4-0.4-0.4-0.4-0.5-0.9-1.2-1.2-1.2-1.4-1.4-1.7-1.7-1.7-1.8-1.9-2.0-2.0-2.1-0.7

us-gaap:AccumulatedOtherComprehensiveIncomeLossNetOfTax dei:LegalEntity

ess:EssexPortfolioL.P.


Accumulated
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302017-12-31
Value-6167000.0-6811000.0-11303000.0-13447000.0-15423000.0-19519000.0-10432000.0-15752000.0-15715000.0-11394000.0-9738000.0-4908000.0-7898000.0-15229000.0
Percentage of AccumulatedOtherComprehensiveIncomeLossNetOfTax63.165.676.780.082.486.175.182.882.776.973.757.469.182.6
Percentage of Assets-0.0-0.1-0.1-0.1-0.1-0.1-0.1-0.1-0.1-0.1-0.1-0.0-0.1-0.1
Percentage of Assets ess:EssexPortfolioL.P.-0.0-0.1-0.1-0.1-0.1-0.1-0.1-0.1-0.1-0.1-0.1-0.0-0.1-0.1

Minority Interest

us-gaap:MinorityInterest

us-gaap:MinorityInterest


Minority
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value183185182184186189183189190125126119120123119118121124100959699991101101141131101131533113113111113115115117115116117119203205220
Percentage of MinorityInterest100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets1.41.51.41.41.41.41.41.51.51.01.01.01.01.01.00.91.01.00.80.80.80.80.80.90.90.91.00.91.023.12.22.22.22.32.42.52.72.92.93.03.15.35.56.8

us-gaap:MinorityInterest dei:LegalEntity

ess:EssexPortfolioL.P.


Minority
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302017-12-31
Value1221221211211221231221291296364646466
Percentage of MinorityInterest67.066.166.366.065.464.966.868.367.950.750.754.053.655.6
Percentage of Assets1.01.00.90.90.90.91.01.01.00.50.50.50.50.5
Percentage of Assets ess:EssexPortfolioL.P.1.01.00.90.90.90.91.01.01.00.50.50.50.50.5

Stock Issued During Period Value New Issues

us-gaap:StockIssuedDuringPeriodValueNewIssues

us-gaap:StockIssuedDuringPeriodValueNewIssues


Stock
Period End2021-06-302020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-07-312012-06-302012-03-312011-12-312011-09-302011-06-302011-03-31
Value-0.084-0.068-0.095-0.063-0.07-0.0172-0.062-0.02-0.436-0.13-0.286-0.0678.678-0.18880-0.065-0.002-0.103-0.145-0.13424358818483150141157150.00.0122889726813931678813038
Percentage of StockIssuedDuringPeriodValueNewIssues100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:StockIssuedDuringPeriodValueNewIssues dei:LegalEntity

ess:EssexPortfolioL.P.


Stock
Period End2021-06-302020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value-0.084-0.068-0.095-0.063-0.07-0.0172-0.062-0.02-0.436-0.13-0.286-0.067
Percentage of StockIssuedDuringPeriodValueNewIssues100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.00.00.00.00.00.00.00.00.00.00.00.00.0
Percentage of Assets ess:EssexPortfolioL.P.0.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:StockIssuedDuringPeriodValueNewIssues dei:LegalEntity, us-gaap:PartnerCapitalComponents, us-gaap:PartnerTypeOfPartnersCapitalAccount

ess:EssexPortfolioL.P., ess:CommonEquity, us-gaap:GeneralPartner


Stock
Period End2021-06-302020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value-0.084-0.068-0.095-0.063-0.07-0.0172-0.062-0.02-0.436-0.13-0.286-0.067
Percentage of StockIssuedDuringPeriodValueNewIssues100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.00.00.00.00.00.00.00.00.00.00.00.00.0
Percentage of Assets ess:EssexPortfolioL.P. ess:CommonEquity us-gaap:GeneralPartner0.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:StockIssuedDuringPeriodValueNewIssues us-gaap:StatementEquityComponents

us-gaap:AdditionalPaidInCapital


Stock
Period End2021-06-302020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-31
Value-0.084-0.068-0.095-0.063-0.07-0.0172-0.062-0.02-0.436-0.13-0.286-0.0678.677-0.18880-0.065-0.002-0.103-0.145-0.13424358818483150141157150.00.0122889713931678813038
Percentage of StockIssuedDuringPeriodValueNewIssues100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0
Percentage of Assets us-gaap:AdditionalPaidInCapital0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value

us-gaap:AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue

us-gaap:AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue


Adjustments
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-31
Value2.7855.0823.6192.3615.2351.6984.3691.8143.52.64.291.7474.2842.536.4081.5332.1081.2536.4631.2381.7081.494.1352.0542.0871.374.4447.288-0.4080.5480.7410.3840.1640.3190.1230.8670.3910.420.0690.2440.3910.169
Percentage of AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue us-gaap:StatementEquityComponents

us-gaap:AdditionalPaidInCapital


Adjustments
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-31
Value2.5715.0283.4972.2795.0581.6194.0131.5443.1712.3013.9541.4963.9482.2535.7151.0741.631.115.5840.6611.1060.8953.3820.6431.3080.613-0.0376.882-1.001-0.125-0.148-0.144-0.359-0.256-0.430.35-0.174-0.176-0.7250.00.107-0.107
Percentage of AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue92.398.996.696.596.695.391.985.190.688.592.285.692.289.189.270.177.388.686.453.464.860.181.831.362.744.7-0.894.4245.3-22.8-20.0-37.5-218.9-80.3-349.640.4-44.5-41.9-1050.70.027.4-63.3
Percentage of Assets0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0
Percentage of Assets us-gaap:AdditionalPaidInCapital0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:NoncontrollingInterest


Adjustments
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-31
Value0.2140.0540.1220.0820.1770.0790.3560.270.3290.2990.3360.2510.3360.2770.6930.4590.4780.1430.8790.5770.6020.5950.7531.4110.7790.7574.4810.4060.5930.6730.8890.5280.5230.5750.5530.5170.5650.5960.7940.2440.2840.276
Percentage of AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue7.71.13.43.53.44.78.114.99.411.57.814.47.810.910.829.922.711.413.646.635.239.918.268.737.355.3100.85.6-145.3122.8120.0137.5318.9180.3449.659.6144.5141.91150.7100.072.6163.3
Percentage of Assets0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0
Percentage of Assets us-gaap:NoncontrollingInterest0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Minority Interest Decrease From Distributions To Noncontrolling Interest Holders

us-gaap:MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders

us-gaap:MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders


Minority
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-31
Value7.3037.5547.6787.6778.1337.8797.5966.7896.9447.1646.9526.8849.16.2975.9796.0559.0915.9265.4296.9548.0065.4655.3784.7388.0153.574-29.895.3113.5413.9694.384.2975.8163.995-29.56622-5.284-3.85-3.695-3.601-4.64-5.027
Percentage of MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders dei:LegalEntity

ess:EssexPortfolioL.P.


Minority
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value2.5082.762.9112.9083.3663.1073.1092.3022.4432.6672.6522.6324.8462.044
Percentage of MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders34.336.537.937.941.439.440.933.935.237.238.138.253.332.5
Percentage of Assets0.00.00.00.00.00.00.00.00.00.00.00.00.00.0
Percentage of Assets ess:EssexPortfolioL.P.0.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders dei:LegalEntity, us-gaap:PartnerCapitalComponents

ess:EssexPortfolioL.P., us-gaap:NoncontrollingInterest


Minority
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value2.5082.762.9112.9083.3663.1073.1092.3022.4432.6672.6522.6324.8462.044
Percentage of MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders34.336.537.937.941.439.440.933.935.237.238.138.253.332.5
Percentage of Assets0.00.00.00.00.00.00.00.00.00.00.00.00.00.0
Percentage of Assets ess:EssexPortfolioL.P. us-gaap:NoncontrollingInterest0.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders us-gaap:StatementEquityComponents

us-gaap:NoncontrollingInterest


Minority
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-31
Value7.3037.5547.6787.6778.1337.8797.5966.7896.9447.1646.9526.8849.16.2975.9796.0559.0915.9265.4296.9548.0065.4655.3784.7388.0153.5744.2485.3113.5413.9694.384.2975.8163.995-29.56622-5.284-3.85-3.695-3.601-4.64-5.027
Percentage of MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0-14.2100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0
Percentage of Assets us-gaap:NoncontrollingInterest0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Net Cash Provided By Used In Operating Activities

us-gaap:NetCashProvidedByUsedInOperatingActivities

us-gaap:NetCashProvidedByUsedInOperatingActivities


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value232195149227159266212277174255145257155268144248149223132230149200968279746485488957724368475727583652
Percentage of NetCashProvidedByUsedInOperatingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax10482.08682.36547.39685.96779.610199.78472.511412.47702.410953.3-14.073.444.577.342.072.344.066.640.169.946.663.837.151.351.147.842.357.433.365.143.256.435.057.040.150.424.756.436.452.4

us-gaap:NetCashProvidedByUsedInOperatingActivities dei:LegalEntity

ess:EssexPortfolioL.P.


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-30
Value232195149227159266212277174255145257155268146251
Percentage of NetCashProvidedByUsedInOperatingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.8100.9
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax10482.08682.36547.39685.96779.610199.78472.511412.47702.410953.3-14.073.444.577.342.372.9
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax ess:EssexPortfolioL.P.10482.08682.36547.39685.96779.610199.78472.511412.47702.410953.30.00.00.00.00.00.0

Net Cash Provided By Used In Investing Activities

us-gaap:NetCashProvidedByUsedInInvestingActivities

us-gaap:NetCashProvidedByUsedInInvestingActivities


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value-152.504146-114.912-14.185157-445.637176-372.786-112.219-219.24875-76.81639-98.989-82.842-220.148-83.823-90.426-156.597-83.683-100.373-80.759-674.63-51.639-144.709-27.306-175.944-105.737-294.072-201.888-272.127-44.051-165.143-110.521-65.933-84.186-259.35-128.362-45.661-77.495
Percentage of NetCashProvidedByUsedInInvestingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax-6866.56530.4-5026.8-604.46722.1-17028.57051.2-15353.6-4965.4-9389.6-7.3-21.911.5-28.5-24.0-63.9-24.7-27.0-47.6-25.4-31.2-25.7-260.0-31.9-92.6-17.5-114.7-70.8-203.1-146.1-205.3-34.4-132.1-92.1-56.3-74.0-234.8-123.0-45.6-76.6

us-gaap:NetCashProvidedByUsedInInvestingActivities dei:LegalEntity

ess:EssexPortfolioL.P.


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-30
Value-152.504146-114.912-14.185157-445.637176-372.786-112.219-219.24875-76.81639-98.989-82.648-221.653
Percentage of NetCashProvidedByUsedInInvestingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.099.8100.7
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax-6866.56530.4-5026.8-604.46722.1-17028.57051.2-15353.6-4965.4-9389.6-7.3-21.911.5-28.5-24.0-64.4
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax ess:EssexPortfolioL.P.-6866.56530.4-5026.8-604.46722.1-17028.57051.2-15353.6-4965.4-9389.60.00.00.00.00.00.0

Net Cash Provided By Used In Financing Activities

us-gaap:NetCashProvidedByUsedInFinancingActivities

us-gaap:NetCashProvidedByUsedInFinancingActivities


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value-135.485-312.816-519.79399-342.89379-399.346132-131.01-63.78-244.579-183.75-156.646-91.417-63.909-166.11134-113.424-105.675-133.80984-101.37436-29.87773-57.89810032262109205-27.25412542-69.98511023175-4.72326
Percentage of NetCashProvidedByUsedInFinancingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax-6100.2-13909.1-22738.14237.7-14603.514519.1-15948.35455.0-5796.9-2731.523.6-52.4-44.9-26.3-18.5-48.210.1-33.8-32.1-40.726.4-32.3168.1-18.547.2-37.165.521.6181.379.5154.9-21.3100.235.2-59.797.4209.372.6-4.725.9

us-gaap:NetCashProvidedByUsedInFinancingActivities dei:LegalEntity

ess:EssexPortfolioL.P.


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-30
Value-135.485-312.816-519.79399-342.89379-399.346132-131.01-63.78-244.579-183.75-156.646-91.417-65.539-165.993
Percentage of NetCashProvidedByUsedInFinancingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0102.699.9
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax-6100.2-13909.1-22738.14237.7-14603.514519.1-15948.35455.0-5796.9-2731.523.6-52.4-44.9-26.3-19.0-48.2
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax ess:EssexPortfolioL.P.-6100.2-13909.1-22738.14237.7-14603.514519.1-15948.35455.0-5796.9-2731.50.00.00.00.00.00.0

Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect

us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect

us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect


Cash
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-30
Value-55.18429-485.034312-25.872201-10.63236-69.155-27.269-23.231-2.95
Percentage of CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax-2484.61303.6-21217.613319.1-1101.97690.2-424.61513.8-3060.0-1167.82.2-0.8

us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect dei:LegalEntity

ess:EssexPortfolioL.P.


Cash
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-30
Value-55.18429-485.034312-25.872201-10.63236-69.155-27.269-23.231-2.95
Percentage of CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax-2484.61303.6-21217.613319.1-1101.97690.2-424.61513.8-3060.0-1167.82.2-0.8
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax ess:EssexPortfolioL.P.-2484.61303.6-21217.613319.1-1101.97690.2-424.61513.8-3060.0-1167.80.00.0

Net Cash Provided By Used In Operating Activities

us-gaap:NetCashProvidedByUsedInOperatingActivities

us-gaap:NetCashProvidedByUsedInOperatingActivities


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value232195149227159266212277174255145257155268144248149223132230149200968279746485488957724368475727583652
Percentage of NetCashProvidedByUsedInOperatingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax10482.08682.36547.39685.96779.610199.78472.511412.47702.410953.3-14.073.444.577.342.072.344.066.640.169.946.663.837.151.351.147.842.357.433.365.143.256.435.057.040.150.424.756.436.452.4

us-gaap:NetCashProvidedByUsedInOperatingActivities dei:LegalEntity

ess:EssexPortfolioL.P.


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-30
Value232195149227159266212277174255145257155268146251
Percentage of NetCashProvidedByUsedInOperatingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.8100.9
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax10482.08682.36547.39685.96779.610199.78472.511412.47702.410953.3-14.073.444.577.342.372.9
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax ess:EssexPortfolioL.P.10482.08682.36547.39685.96779.610199.78472.511412.47702.410953.30.00.00.00.00.00.0

Profit Loss

us-gaap:ProfitLoss

us-gaap:ProfitLoss


Profit
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value69176101789032813510598125124861069610985751872047076868547506444588.428263675292949204227171116128.628101317
Percentage of ProfitLoss100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax3134.47867.94446.63359.33836.312562.75398.64353.44339.05374.9-12.024.530.527.831.824.722.455.962.221.323.927.727.615.517.122.916.121.73.216.323.648.719.319.934.314.632.121.314.39.213.711.07.810.013.817.6

us-gaap:ProfitLoss dei:LegalEntity

ess:EssexPortfolioL.P.


Profit
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value6917610178903281351059812512486106961098575187
Percentage of ProfitLoss100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax3134.47867.94446.63359.33836.312562.75398.64353.44339.05374.9-12.024.530.527.831.824.722.455.9
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax ess:EssexPortfolioL.P.3134.47867.94446.63359.33836.312562.75398.64353.44339.05374.90.00.00.00.00.00.00.00.0

us-gaap:ProfitLoss dei:LegalEntity, us-gaap:PartnerCapitalComponents

ess:EssexPortfolioL.P., us-gaap:NoncontrollingInterest


Profit
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value2.4812.5582.5352.5882.6542.7731.8842.9012.5582.4762.5492.3462.512.589
Percentage of ProfitLoss3.61.42.53.32.90.81.42.72.62.02.02.72.42.7
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax111.7113.7110.9110.3113.0106.075.2119.5113.2106.0-0.20.70.70.7
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax ess:EssexPortfolioL.P. us-gaap:NoncontrollingInterest0.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:ProfitLoss dei:LegalEntity, us-gaap:PartnerCapitalComponents, us-gaap:PartnerTypeOfPartnersCapitalAccount

ess:EssexPortfolioL.P., ess:CommonEquity, us-gaap:GeneralPartner


Profit
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value6416895738431512899921181178010090
Percentage of ProfitLoss93.195.294.293.493.895.895.394.094.194.794.794.094.494.1
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax2919.77489.74188.33138.53597.012036.95144.54091.24083.05090.3-11.423.128.826.2
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax ess:EssexPortfolioL.P. ess:CommonEquity us-gaap:GeneralPartner0.00.00.00.00.00.00.00.00.00.00.00.00.00.0

ess:EssexPortfolioL.P., ess:CommonEquity, us-gaap:LimitedPartner


Profit
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value2.2885.9473.3692.5932.964104.483.4643.2284.1714.0712.7893.463.132
Percentage of ProfitLoss3.33.43.33.33.33.33.33.33.33.33.33.23.33.2
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax103.0264.4147.4110.5126.2419.8178.9142.7142.8178.6-0.40.81.00.9
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax ess:EssexPortfolioL.P. ess:CommonEquity us-gaap:LimitedPartner0.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:ProfitLoss us-gaap:ScheduleOfEquityMethodInvestmentEquityMethodInvesteeName, us-gaap:EquityMethodInvestmentNonconsolidatedInvestee

ess:TotalCoInvestment, us-gaap:EquityMethodInvestmentNonconsolidatedInvesteeOrGroupOfInvestees


Profit
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-30
Value-10.415-9.262-5.728-5.332-1.7195.7546.737
Percentage of ProfitLoss-15.0-5.2-7.3-5.9-0.55.46.9
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax-468.9-411.8-244.1-227.1-65.7237.0298.1
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax ess:TotalCoInvestment us-gaap:EquityMethodInvestmentNonconsolidatedInvesteeOrGroupOfInvestees0.00.00.00.00.00.00.0

us-gaap:ProfitLoss us-gaap:StatementEquityComponents

us-gaap:AccumulatedDistributionsInExcessOfNetIncome


Profit
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-31
Value641689573843151289992118117801009010379701781956572818043466041506.303233370262645173824159.057138.961
Percentage of ProfitLoss93.195.294.293.493.895.895.394.094.194.794.794.094.494.194.593.893.495.495.693.493.794.294.492.592.793.793.386.574.888.290.192.589.089.591.087.090.588.485.781.785.671.6
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax2919.77489.74188.33138.53597.012036.95144.54091.24083.05090.3-11.423.128.826.230.023.220.953.459.419.922.426.026.014.315.821.515.018.82.414.421.345.017.217.831.212.729.018.812.27.511.77.9
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:AccumulatedDistributionsInExcessOfNetIncome0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:NoncontrollingInterest


Profit
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-31
Value4.7698.5055.9045.1815.618136.3646.3655.7866.6476.625.1355.975.7216.0495.3125.0368.5878.9484.6014.8115.0714.8243.5453.6744.0763.3173.722.1253.1263.665.7193.2613.1324.4792.6344.0423.1512.5642.0312.3053.546
Percentage of ProfitLoss6.94.85.86.66.24.24.76.05.95.35.36.05.65.95.56.26.64.64.46.66.35.85.67.57.36.37.46.325.211.89.97.511.010.59.013.09.511.614.418.314.428.4
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax214.7378.2258.3220.7239.3525.8254.2262.1256.0284.7-0.61.51.71.61.81.51.52.62.71.41.51.61.61.21.21.41.21.40.81.92.33.72.12.13.11.93.02.52.11.72.03.1
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:NoncontrollingInterest0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Share Based Compensation

us-gaap:ShareBasedCompensation

us-gaap:ShareBasedCompensation


Share
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-30
Value2.391.3863.2340.882.6381.4050.2621.4273.2532.068-0.0741.3033.8162.094.3921.5332.1081.2536.4631.2381.7081.490.552.0542.0871.373.7441.3712.3921.2331.3711.0110.9941.1321.2610.9550.9390.9861.3090.5620.6290.4270.8910.621
Percentage of ShareBasedCompensation100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ShareBasedCompensation dei:LegalEntity

ess:EssexPortfolioL.P.


Share
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-30
Value2.391.3863.2340.882.6381.4050.2621.4273.2532.068-0.0741.3033.8162.094.3921.533
Percentage of ShareBasedCompensation100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Net Cash Provided By Used In Investing Activities

us-gaap:NetCashProvidedByUsedInInvestingActivities

us-gaap:NetCashProvidedByUsedInInvestingActivities


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value-152.504146-114.912-14.185157-445.637176-372.786-112.219-219.24875-76.81639-98.989-82.842-220.148-83.823-90.426-156.597-83.683-100.373-80.759-674.63-51.639-144.709-27.306-175.944-105.737-294.072-201.888-272.127-44.051-165.143-110.521-65.933-84.186-259.35-128.362-45.661-77.495
Percentage of NetCashProvidedByUsedInInvestingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax-6866.56530.4-5026.8-604.46722.1-17028.57051.2-15353.6-4965.4-9389.6-7.3-21.911.5-28.5-24.0-63.9-24.7-27.0-47.6-25.4-31.2-25.7-260.0-31.9-92.6-17.5-114.7-70.8-203.1-146.1-205.3-34.4-132.1-92.1-56.3-74.0-234.8-123.0-45.6-76.6

us-gaap:NetCashProvidedByUsedInInvestingActivities dei:LegalEntity

ess:EssexPortfolioL.P.


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-30
Value-152.504146-114.912-14.185157-445.637176-372.786-112.219-219.24875-76.81639-98.989-82.648-221.653
Percentage of NetCashProvidedByUsedInInvestingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.099.8100.7
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax-6866.56530.4-5026.8-604.46722.1-17028.57051.2-15353.6-4965.4-9389.6-7.3-21.911.5-28.5-24.0-64.4
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax ess:EssexPortfolioL.P.-6866.56530.4-5026.8-604.46722.1-17028.57051.2-15353.6-4965.4-9389.60.00.00.00.00.00.0

Payments To Acquire Real Estate

us-gaap:PaymentsToAcquireRealEstate

us-gaap:PaymentsToAcquireRealEstate


Payments
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value171.2031.0660.4980.55545840452.601447.5042.3312.6032.8736.1666.5015.611871916.7057.0411018712115199-21.4713155933143290.0175236764138144.377.55831183896.7570.0
Percentage of PaymentsToAcquireRealEstate100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0

us-gaap:PaymentsToAcquireRealEstate dei:LegalEntity

ess:EssexPortfolioL.P.


Payments
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-30
Value171.2031.0660.4980.55545840452.601447.5042.3312.6032.8736.1666.501
Percentage of PaymentsToAcquireRealEstate100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Net Cash Provided By Used In Financing Activities

us-gaap:NetCashProvidedByUsedInFinancingActivities

us-gaap:NetCashProvidedByUsedInFinancingActivities


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value-135.485-312.816-519.79399-342.89379-399.346132-131.01-63.78-244.579-183.75-156.646-91.417-63.909-166.11134-113.424-105.675-133.80984-101.37436-29.87773-57.89810032262109205-27.25412542-69.98511023175-4.72326
Percentage of NetCashProvidedByUsedInFinancingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax-6100.2-13909.1-22738.14237.7-14603.514519.1-15948.35455.0-5796.9-2731.523.6-52.4-44.9-26.3-18.5-48.210.1-33.8-32.1-40.726.4-32.3168.1-18.547.2-37.165.521.6181.379.5154.9-21.3100.235.2-59.797.4209.372.6-4.725.9

us-gaap:NetCashProvidedByUsedInFinancingActivities dei:LegalEntity

ess:EssexPortfolioL.P.


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-30
Value-135.485-312.816-519.79399-342.89379-399.346132-131.01-63.78-244.579-183.75-156.646-91.417-65.539-165.993
Percentage of NetCashProvidedByUsedInFinancingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0102.699.9
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax-6100.2-13909.1-22738.14237.7-14603.514519.1-15948.35455.0-5796.9-2731.523.6-52.4-44.9-26.3-19.0-48.2
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax ess:EssexPortfolioL.P.-6100.2-13909.1-22738.14237.7-14603.514519.1-15948.35455.0-5796.9-2731.50.00.00.00.00.00.0

Proceeds From Issuance Of Long Term Debt

us-gaap:ProceedsFromIssuanceOfLongTermDebt

us-gaap:ProceedsFromIssuanceOfLongTermDebt


Proceeds
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value2984470.05963584981523940.04980.00.00.02980.0-467.3134106544445246230527714416675635641610872333273736923539758560315964222634130459740350162
Percentage of ProceedsFromIssuanceOfLongTermDebt100.0100.00.0100.0100.0100.0100.0100.00.0100.00.00.00.0100.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ProceedsFromIssuanceOfLongTermDebt dei:LegalEntity

ess:EssexPortfolioL.P.


Proceeds
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-30
Value2984470.05963584981523940.04980.00.00.02980.00.0
Percentage of ProceedsFromIssuanceOfLongTermDebt100.0100.00.0100.0100.0100.0100.0100.00.0100.00.00.00.0100.00.0-0.0

Repayments Of Long Term Debt

us-gaap:RepaymentsOfLongTermDebt

us-gaap:RepaymentsOfLongTermDebt


Repayments
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value35060032930018310222532711236068512783101-544.926343661437791913092721941935364862507643122134121527917452549317754323046919139532341122
Percentage of RepaymentsOfLongTermDebt100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:RepaymentsOfLongTermDebt dei:LegalEntity

ess:EssexPortfolioL.P.


Repayments
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-30
Value3506003293001831022253271123606851278310147
Percentage of RepaymentsOfLongTermDebt100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0-8.7

Payments For Repurchase Of Common Stock

us-gaap:PaymentsForRepurchaseOfCommonStock

us-gaap:PaymentsForRepurchaseOfCommonStock


Payments
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value0.09.1724626201760.00.00.056470.00.03.7740.00.00.00.0
Percentage of PaymentsForRepurchaseOfCommonStock0.0100.0100.0100.0100.0100.00.00.00.0100.0100.00.00.0100.00.00.00.00.0

us-gaap:PaymentsForRepurchaseOfCommonStock dei:LegalEntity

ess:EssexPortfolioL.P.


Payments
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-30
Value0.09.1724626201760.00.00.056470.00.03.7740.00.0
Percentage of PaymentsForRepurchaseOfCommonStock0.0100.0100.0100.0100.0100.00.00.00.0100.0100.00.00.0100.00.00.0

Debt Instrument Interest Rate Stated Percentage

us-gaap:DebtInstrumentInterestRateStatedPercentage us-gaap:LongtermDebtType

us-gaap:DebtInstrumentInterestRateStatedPercentage

ess:UnsecuredBonds427


Debt
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-31
Value4.270.04270.04270.04270.04270.04270.04270.04270.04270.0427
Percentage of DebtInstrumentInterestRateStatedPercentage100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of LongTermDebtAndCapitalLeaseObligations0.00.00.00.00.00.00.00.00.00.0
Percentage of LongTermDebtAndCapitalLeaseObligations ess:UnsecuredBonds4270.00.00.00.00.00.00.00.00.00.0

ess:UnsecuredBonds430


Debt
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-31
Value4.30.0430.0430.0430.0430.0430.0430.0430.0430.043
Percentage of DebtInstrumentInterestRateStatedPercentage100.7100.7100.7100.7100.7100.7100.7100.7100.7100.7
Percentage of LongTermDebtAndCapitalLeaseObligations0.00.00.00.00.00.00.00.00.00.0
Percentage of LongTermDebtAndCapitalLeaseObligations ess:UnsecuredBonds4300.00.00.00.00.00.00.00.00.00.0

ess:UnsecuredBonds437


Debt
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-31
Value4.370.04370.04370.04370.04370.04370.04370.04370.04370.0437
Percentage of DebtInstrumentInterestRateStatedPercentage102.3102.3102.3102.3102.3102.3102.3102.3102.3102.3
Percentage of LongTermDebtAndCapitalLeaseObligations0.00.00.00.00.00.00.00.00.00.0
Percentage of LongTermDebtAndCapitalLeaseObligations ess:UnsecuredBonds4370.00.00.00.00.00.00.00.00.00.0

us-gaap:DebtInstrumentInterestRateStatedPercentage us-gaap:LongtermDebtType, us-gaap:SubsequentEventType

ess:UnsecuredBonds430, us-gaap:SubsequentEvent


Debt
Period End2021-02-28
Value4.3
Percentage of DebtInstrumentInterestRateStatedPercentage0.0
Percentage of LongTermDebtAndCapitalLeaseObligations0.0
Percentage of LongTermDebtAndCapitalLeaseObligations ess:UnsecuredBonds430 us-gaap:SubsequentEvent0.0

Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Weighted Average Exercise Price

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice


Share
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-312010-12-312009-12-312008-12-31
Value255.86251.1224.57211.41181.5154.98138.78133.37125.96109.7188.1182.0880.63
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

ess:CapitalizedInternalCostsRelatedToDevelopmentAndRedevelopmentProjects

ess:CapitalizedInternalCostsRelatedToDevelopmentAndRedevelopmentProjects


Capitalized
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-31
Value5.56.46.56.18.99.94.84.34.04.84.44.74.55.05.34.94.95.27.93.83.63.22.62.93.42.02.82.93.01.72.41.81.71.6-0.11.51.51.5
Percentage of CapitalizedInternalCostsRelatedToDevelopmentAndRedevelopmentProjects100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

ess:CompanysShareOfGainOnSalesOfRealEstate

ess:CompanysShareOfGainOnSalesOfRealEstate


Companys
Period End2021-06-302021-03-312020-12-312020-09-302019-12-312019-09-302018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-31
Value0.01002522-3.1640.0390.0220.00.00.2490.0261340.00.020400.00.07.112-85.679310.08.268-44.886123.006-1.5030.00.00.0-10.87-3.5110.802-5.8530.0
Percentage of CompanysShareOfGainOnSalesOfRealEstate0.0100.0100.0100.0100.00.0100.00.0100.00.00.0100.00.0100.0100.00.00.0100.0100.00.00.0100.0100.0100.00.0100.0100.0100.0100.0100.00.00.00.0100.0100.0100.0100.00.0

ess:CompanysShareOfGainOnSalesOfRealEstate dei:LegalEntity

ess:EssexPortfolioL.P.


Companys
Period End2021-06-302021-03-312020-12-312020-09-302019-12-312019-09-302018-12-312018-09-302017-12-312017-09-30
Value0.01002522-3.1640.0390.00.00.249
Percentage of CompanysShareOfGainOnSalesOfRealEstate0.0100.0100.0100.0100.00.0100.00.00.0100.0

ess:CorporatePropertyManagementExpenses

ess:CorporatePropertyManagementExpenses


Corporate
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value9.1058.9478.5498.6198.6468.7598.2798.2558.2128.1537.7497.7617.7827.777.5527.5737.5227.509
Percentage of CorporatePropertyManagementExpenses100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

ess:CorporatePropertyManagementExpenses dei:LegalEntity

ess:EssexPortfolioL.P.


Corporate
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-30
Value9.1058.9478.5498.6198.6468.7598.2798.2558.2128.1537.7497.7617.7827.777.5527.5737.522
Percentage of CorporatePropertyManagementExpenses100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

ess:EquityMethodInvestmentEarlyRedemptionFeeReceived us-gaap:ScheduleOfEquityMethodInvestmentEquityMethodInvesteeName

ess:EquityMethodInvestmentEarlyRedemptionFeeReceived

ess:JointVentureThatHoldsPropertyInSouthernCalifornia


Equity
Period End2021-03-31
Value3500000.0
Percentage of EquityMethodInvestmentEarlyRedemptionFeeReceived100.0

ess:EquityMethodInvestmentsEarlyRedemptionFeeReceived us-gaap:ScheduleOfEquityMethodInvestmentEquityMethodInvesteeName

ess:EquityMethodInvestmentsEarlyRedemptionFeeReceived

ess:JointVentureThatHoldsPropertyInSouthernCalifornia


Equity
Period End2021-03-31
Value3500000.0
Percentage of EquityMethodInvestmentsEarlyRedemptionFeeReceived100.0

ess:EquityMethodInvestmentsOwnershipPercentageAcquired us-gaap:ScheduleOfEquityMethodInvestmentEquityMethodInvesteeName, us-gaap:InvestmentType

ess:EquityMethodInvestmentsOwnershipPercentageAcquired

ess:JointVenturePartnerBEXIII, ess:TheVillageAtTolucaLake


Equity
Period End2021-06-30
Value50.0
Percentage of EquityMethodInvestmentsOwnershipPercentageAcquired100.0

ess:EquityMethodInvestmentsPreferredReturnsRate

ess:EquityMethodInvestmentsPreferredReturnsRate


Equity
Period End2021-01-312020-09-302020-03-312018-11-30
Value10.011.00.1130.099
Percentage of EquityMethodInvestmentsPreferredReturnsRate100.0100.0100.0100.0

ess:EquityMethodInvestmentsPreferredReturnsRate us-gaap:SubsequentEventType

us-gaap:SubsequentEvent


Equity
Period End2020-10-312019-02-21
Value10.20.11
Percentage of EquityMethodInvestmentsPreferredReturnsRate0.00.0

ess:GainLossFromEquityMethodInvestments

ess:GainLossFromEquityMethodInvestments


Gain
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-31
Value1817101417216.97421161613161532109.66910109.7669.5688.6857.6335.8997.1794.4723.842184.1844.0246.695-6.9151.612-0.1110.3913.515-1.371-2.908-0.862-3.966-1.843-0.675-1.445
Percentage of GainLossFromEquityMethodInvestments100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

ess:GainLossFromEquityMethodInvestments dei:LegalEntity

ess:EssexPortfolioL.P.


Gain
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-30
Value1817101417216.97421161613161532109.669
Percentage of GainLossFromEquityMethodInvestments100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

ess:GainOnRemeasurementOfCoInvestment

ess:GainOnRemeasurementOfCoInvestment


Gain
Period End2021-06-302020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312012-12-312012-09-302012-06-302011-12-312011-09-302011-06-30
Value2.260.00.00.02340.00.00.0311.2530.00.00.00.00.02.159860.00.00.00.00.00.012210.00.00.00.00.00.0210.00.00.0
Percentage of GainOnRemeasurementOfCoInvestment100.00.00.00.0100.00.00.00.0100.0100.00.00.00.00.00.0100.0100.00.00.00.00.00.00.0100.0100.00.00.00.00.00.00.0100.00.00.00.0

ess:GainOnRemeasurementOfCoInvestment dei:LegalEntity

ess:EssexPortfolioL.P.


Gain
Period End2021-06-302020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-30
Value2.260.00.00.02340.00.00.0311.2530.00.00.00.00.02.159
Percentage of GainOnRemeasurementOfCoInvestment100.00.00.00.0100.00.00.00.0100.0100.00.00.00.00.00.0100.0

ess:GainOnRemeasurementOfCoInvestment us-gaap:ScheduleOfEquityMethodInvestmentEquityMethodInvesteeName, us-gaap:InvestmentType

ess:JointVenturePartnerBEXIII, ess:TheVillageAtTolucaLake


Gain
Period End2021-06-30
Value2.3
Percentage of GainOnRemeasurementOfCoInvestment101.8

ess:IncomeEffectOfDilutiveSecurities dei:LegalEntity, us-gaap:ConsolidatedEntities, us-gaap:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecurities

ess:IncomeEffectOfDilutiveSecurities

ess:EssexPortfolioL.P., srt:Subsidiaries, ess:DownREITUnits


Income
Period End2021-03-312020-09-302020-06-302020-03-31
Value197000.0195000.0196000.0196000.0
Percentage of IncomeEffectOfDilutiveSecurities100.0100.0100.0100.0

ess:IncomeEffectOfDilutiveSecurities us-gaap:ConsolidatedEntities, us-gaap:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecurities

srt:Subsidiaries, ess:DownREITUnits


Income
Period End2021-03-312020-09-302020-06-302020-03-312019-06-302019-03-31
Value197000.0195000.0196000.0196000.000
Percentage of IncomeEffectOfDilutiveSecurities100.0100.0100.0100.00.00.0

ess:IncomeFromContinuingOperationsAvailableToCommonStockholders1

ess:IncomeFromContinuingOperationsAvailableToCommonStockholders1


Income
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-31
Value641689573843151289992118117801009010379701791956572777942455940534.989211456252543163713118.3235.1358.016
Percentage of IncomeFromContinuingOperationsAvailableToCommonStockholders1100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

ess:IncomeFromContinuingOperationsAvailableToCommonStockholders1 dei:LegalEntity

ess:EssexPortfolioL.P.


Income
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-30
Value671749976873261331029512312183103941078273
Percentage of IncomeFromContinuingOperationsAvailableToCommonStockholders1103.5103.5103.5103.5103.5103.5103.5103.5103.5103.5103.5103.4103.4103.4103.4103.4103.4

ess:IncrementalCommonSharesAttributableToDilutiveEffectOfConversionOfUnits

ess:IncrementalCommonSharesAttributableToDilutiveEffectOfConversionOfUnits


Incremental
Period End2021-03-312020-09-302020-06-302020-03-312019-06-302019-03-31
Value94247.00094247.000
Percentage of IncrementalCommonSharesAttributableToDilutiveEffectOfConversionOfUnits100.00.00.0100.00.00.0

ess:IncrementalCommonSharesAttributableToDilutiveEffectOfConversionOfUnits dei:LegalEntity

ess:EssexPortfolioL.P.


Incremental
Period End2021-03-312020-09-302020-06-302020-03-31
Value94247.00094247.0
Percentage of IncrementalCommonSharesAttributableToDilutiveEffectOfConversionOfUnits100.00.00.0100.0

ess:InterestAndOtherIncomeExpense

ess:InterestAndOtherIncomeExpense


Interest
Period End2021-06-302021-03-312020-06-302020-03-31
Value221411-5.221
Percentage of InterestAndOtherIncomeExpense100.0100.0100.0100.0

ess:InterestAndOtherIncomeExpense dei:LegalEntity

ess:EssexPortfolioL.P.


Interest
Period End2021-06-302021-03-312020-06-302020-03-31
Value221411-5.221
Percentage of InterestAndOtherIncomeExpense100.0100.0100.0100.0

ess:LimitedPartnershipInterestInPartnershipInvestments us-gaap:ScheduleOfEquityMethodInvestmentEquityMethodInvesteeName

ess:LimitedPartnershipInterestInPartnershipInvestments

ess:MembershipInterestInBEXAEWBEXIIBEXIIIBEXIVAnd500Folsom


Limited
Period End2021-06-302021-03-31
Value050.0
Percentage of LimitedPartnershipInterestInPartnershipInvestments0.0100.0

ess:MembershipInterestInLimitedLiabilityCompanyThatOwnsAndIsDevelopingExpo


Limited
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-31
Value047.0046.53-0.010.480-0.0100.490-0.0100.52-0.01
Percentage of LimitedPartnershipInterestInPartnershipInvestments0.094.00.00.00.00.00.00.00.00.00.00.00.00.00.0

ess:MembershipInterestinBEXAEWBEXIIIAndBEXIV


Limited
Period End2020-09-302020-06-302020-03-31
Value49.500.5
Percentage of LimitedPartnershipInterestInPartnershipInvestments0.00.00.0

ess:MembershipinterestinWescoIIIIIVandV


Limited
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value051.0050.4900.51-0.01000.520-0.0100.53
Percentage of LimitedPartnershipInterestInPartnershipInvestments0.0102.00.00.00.00.00.00.00.00.00.00.00.00.0

ess:TotalDevelopmentCoInvestments


Limited
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-31
Value050.0049.500.50000.50000.50
Percentage of LimitedPartnershipInterestInPartnershipInvestments0.0100.00.00.00.00.00.00.00.00.00.00.00.00.00.0

ess:ManagementAndOtherFeesFromAffiliates us-gaap:RelatedPartyTransactionsByRelatedParty

ess:ManagementAndOtherFeesFromAffiliates

srt:AffiliatedEntity


Management
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-31
Value2.62.23.02.63.13.73.53.4
Percentage of ManagementAndOtherFeesFromAffiliates100.0100.0100.0100.0100.0100.0100.0100.0

ess:NetOperatingIncomeFromSegments

ess:NetOperatingIncomeFromSegments


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-30
Value241242249256258282271262263255252250252249238237238233227227223217216208204193188180173107103102101999589878582767572696564
Percentage of NetOperatingIncomeFromSegments100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

ess:NetOperatingIncomeFromSegments us-gaap:ConsolidationItems

us-gaap:CorporateNonSegment


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-30
Value2.6992.74215177.2775.5365.4316.07.0695.971135.6366.6685.3233.8664.4466.0426.5329.4961010
Percentage of NetOperatingIncomeFromSegments1.11.16.26.72.82.02.02.32.72.35.22.22.62.11.61.92.52.84.24.64.7

ess:NetOperatingIncomeFromSegments us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments

us-gaap:OperatingSegments, ess:NorthernCalifornia


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-30
Value981011021031101201091051041009797979492919289818381
Percentage of NetOperatingIncomeFromSegments41.041.941.340.542.942.840.540.239.539.438.638.838.537.938.538.338.838.435.836.536.6

us-gaap:OperatingSegments, ess:SeattleMetro


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-30
Value403840414044444343414141404239393840383735
Percentage of NetOperatingIncomeFromSegments16.716.016.216.115.815.916.516.716.616.216.616.416.016.816.616.716.017.317.116.616.1

us-gaap:OperatingSegments, ess:SouthernCalifornia


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-30
Value9999909499111111106108107100106108107103102101104979695
Percentage of NetOperatingIncomeFromSegments41.140.936.336.838.539.341.040.841.242.039.742.642.943.243.243.242.744.743.042.442.6

ess:NoncontrollingInterestResetOfPriorYearRedemptions

ess:NoncontrollingInterestResetOfPriorYearRedemptions


Noncontrolling
Period End2021-06-302021-03-312020-12-31
Value2.5124.0832.392
Percentage of NoncontrollingInterestResetOfPriorYearRedemptions100.0100.0100.0

ess:NotesReceivableEarlyRedemptionFeeReceived us-gaap:AccountsNotesLoansAndFinancingReceivableByReceivableType

ess:NotesReceivableEarlyRedemptionFeeReceived

ess:SecuredNoteReceivable11.00InterestRateDueOctober2023


Notes
Period End2021-06-30
Value4700000.0
Percentage of NotesReceivableEarlyRedemptionFeeReceived100.0

ess:NumberOfUnitsHeldByEquityMethodInvestment us-gaap:MortgageLoansOnRealEstateDescriptionTypeOfProperty, us-gaap:ScheduleOfEquityMethodInvestmentEquityMethodInvesteeName, us-gaap:SubsequentEventType

ess:NumberOfUnitsHeldByEquityMethodInvestment

srt:ApartmentBuilding, ess:DelanoRedmondWA, us-gaap:SubsequentEvent


Number
Period End2020-07-31
Value126.0
Percentage of NumberOfUnitsHeldByEquityMethodInvestment100.0

ess:PartnersCapitalAccountStockAndUnitBasedCompensationCosts dei:LegalEntity

ess:PartnersCapitalAccountStockAndUnitBasedCompensationCosts

ess:EssexPortfolioL.P.


Partners
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value2.7855.0823.6192.3615.2351.6984.3691.8143.52.64.291.7474.2842.53
Percentage of PartnersCapitalAccountStockAndUnitBasedCompensationCosts100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

ess:PartnersCapitalAccountStockAndUnitBasedCompensationCosts dei:LegalEntity, us-gaap:PartnerCapitalComponents, us-gaap:PartnerTypeOfPartnersCapitalAccount

ess:EssexPortfolioL.P., ess:CommonEquity, us-gaap:GeneralPartner


Partners
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value2.5715.0283.4972.2795.0581.6194.0131.5443.1712.3013.9541.4963.9482.253
Percentage of PartnersCapitalAccountStockAndUnitBasedCompensationCosts92.398.996.696.596.695.391.985.190.688.592.285.692.289.1

ess:EssexPortfolioL.P., ess:CommonEquity, us-gaap:LimitedPartner


Partners
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value0.2140.0540.1220.0820.1770.0790.3560.270.3290.2990.3360.2510.3360.277
Percentage of PartnersCapitalAccountStockAndUnitBasedCompensationCosts7.71.13.43.53.44.78.114.99.411.57.814.47.810.9

ess:PartnersCapitalAccountStockAndUnitBasedCompensationPlans dei:LegalEntity

ess:PartnersCapitalAccountStockAndUnitBasedCompensationPlans

ess:EssexPortfolioL.P.


Partners
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value0.574-3.7440.00.00.5368.6650.872272.0243.2043.4620.8870.6421.222
Percentage of PartnersCapitalAccountStockAndUnitBasedCompensationPlans100.0100.00.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

ess:PartnersCapitalAccountStockAndUnitBasedCompensationPlans dei:LegalEntity, us-gaap:PartnerCapitalComponents, us-gaap:PartnerTypeOfPartnersCapitalAccount

ess:EssexPortfolioL.P., ess:CommonEquity, us-gaap:GeneralPartner


Partners
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value0.574-3.7440.00.00.5368.6650.872272.0243.2043.4620.8870.6421.222
Percentage of PartnersCapitalAccountStockAndUnitBasedCompensationPlans100.0100.00.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

ess:PartnersCapitalAccountUnitsStockAndUnitBasedCompensationPlan dei:LegalEntity, us-gaap:PartnerCapitalComponents, us-gaap:PartnerTypeOfPartnersCapitalAccount

ess:PartnersCapitalAccountUnitsStockAndUnitBasedCompensationPlan

ess:EssexPortfolioL.P., ess:CommonEquity, us-gaap:GeneralPartner


Partners
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value5000.039000.0006000.089000.07000.0126000.011000.051000.024000.05000.05000.07000.0
Percentage of PartnersCapitalAccountUnitsStockAndUnitBasedCompensationPlan100.0100.00.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

ess:PartnersCapitalAccountUnitsStockandunitbasedcompensationcosts dei:LegalEntity, us-gaap:PartnerCapitalComponents, us-gaap:PartnerTypeOfPartnersCapitalAccount

ess:PartnersCapitalAccountUnitsStockandunitbasedcompensationcosts

ess:EssexPortfolioL.P., ess:CommonEquity, us-gaap:LimitedPartner


Partners
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value0002000.07000.0003000.06000.0005000.0
Percentage of PartnersCapitalAccountUnitsStockandunitbasedcompensationcosts0.00.00.0100.0100.00.00.0100.0100.00.00.0100.0

ess:PaymentsForProceedsFromSalesAndMaturitiesOfMarketableSecurities

ess:PaymentsForProceedsFromSalesAndMaturitiesOfMarketableSecurities


Payments
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value-159000.0-14772000.0-56575000.0-52589000.0-4136000.0-165000.0-90366000.0-6939000.0-33379000.0-16847000.0
Percentage of PaymentsForProceedsFromSalesAndMaturitiesOfMarketableSecurities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

ess:PaymentsForProceedsFromSalesAndMaturitiesOfMarketableSecurities dei:LegalEntity

ess:EssexPortfolioL.P.


Payments
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value-159000.0-14772000.0-56575000.0-52589000.0-4136000.0-165000.0-90366000.0-6939000.0-33379000.0-16847000.0
Percentage of PaymentsForProceedsFromSalesAndMaturitiesOfMarketableSecurities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

ess:ReclassificationFromToRedeemableNoncontrollingInterest

ess:ReclassificationFromToRedeemableNoncontrollingInterest


Reclassification
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-30
Value2.514.0832.392-2.5220.598-4.767-1.6672.247-0.3391.767-1.0880.408-0.1081.953-0.838-0.2140.3860.7310.575-0.422-1.6720.751210.759
Percentage of ReclassificationFromToRedeemableNoncontrollingInterest100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

ess:ReclassificationFromToRedeemableNoncontrollingInterest dei:LegalEntity

ess:EssexPortfolioL.P.


Reclassification
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-30
Value2.514.0832.392-2.5220.598-4.767-1.6672.247-0.3391.767-1.0880.408-0.1081.953-0.838-0.214
Percentage of ReclassificationFromToRedeemableNoncontrollingInterest100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

ess:RedemptionsOfNoncontrollingInterest

ess:RedemptionsOfNoncontrollingInterest


Redemptions
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-31
Value2.0630.2550.1421.2680.3351.368220.0011.966121.1760.10.0570.023252.4581.070.0760.2021.1441.0890.00.1330.3342.154-7.0050.4292.4490.1010.5983.0960.6881.329-8.5812.276-0.246-0.435
Percentage of RedemptionsOfNoncontrollingInterest100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

ess:RedemptionsOfNoncontrollingInterest dei:LegalEntity

ess:EssexPortfolioL.P.


Redemptions
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-30
Value2.0630.2550.1421.2680.3351.368220.0011.966121.1760.10.057
Percentage of RedemptionsOfNoncontrollingInterest100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

ess:RedemptionsOfNoncontrollingInterest dei:LegalEntity, us-gaap:PartnerCapitalComponents

ess:EssexPortfolioL.P., us-gaap:NoncontrollingInterest


Redemptions
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-30
Value0.2710.0440.1430.150.2890.2366.1390.180.2761.4540.0560.011
Percentage of RedemptionsOfNoncontrollingInterest13.117.3100.711.886.317.327.418000.014.011.94.811.0

ess:RedemptionsOfNoncontrollingInterest dei:LegalEntity, us-gaap:PartnerCapitalComponents, us-gaap:PartnerTypeOfPartnersCapitalAccount

ess:EssexPortfolioL.P., ess:CommonEquity, us-gaap:GeneralPartner


Redemptions
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-30
Value1.7920.075-0.1031.118-0.0431.04816-0.2111.689100.9180.0890.054
Percentage of RedemptionsOfNoncontrollingInterest86.929.4-72.588.2-12.876.672.4-21100.085.985.178.189.094.7

ess:EssexPortfolioL.P., ess:CommonEquity, us-gaap:LimitedPartner


Redemptions
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-30
Value0.00.1360.1020.00.0890.0840.0380.0320.0010.3650.2020.00.003
Percentage of RedemptionsOfNoncontrollingInterest0.053.371.80.026.66.10.23200.00.13.017.20.05.3

ess:RedemptionsOfNoncontrollingInterest us-gaap:StatementEquityComponents

us-gaap:AdditionalPaidInCapital


Redemptions
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-31
Value1.7920.075-0.1031.118-0.0431.04816-0.2111.689100.9180.0890.0540.023222.0910.8350.1430.2310.9140.8290.00.1160.3061.7770.5510.3981.9850.00.4232.7480.5460.0-1.7980.00.00.0
Percentage of RedemptionsOfNoncontrollingInterest86.929.4-72.588.2-12.876.672.4-21100.085.985.178.189.094.7100.088.985.178.0188.2114.479.976.10.087.291.682.5-7.992.881.10.070.788.879.40.021.00.0-0.0-0.0

us-gaap:NoncontrollingInterest


Redemptions
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-31
Value0.2710.180.2450.150.3780.326.1770.2120.2771.8190.2580.0110.0030.02.7880.3670.235-0.067-0.0290.230.260.00.0170.0280.3770.4960.0310.4640.1010.1750.3480.1421.329-6.7832.276-0.246-0.435
Percentage of RedemptionsOfNoncontrollingInterest13.170.6172.511.8112.823.427.621200.014.114.921.911.05.30.011.114.922.0-88.2-14.420.123.90.012.88.417.5-7.17.218.9100.029.311.220.6100.079.0100.0100.0100.0

ess:RedemptionsOfNoncontrollingInterestShares dei:LegalEntity, us-gaap:PartnerCapitalComponents, us-gaap:PartnerTypeOfPartnersCapitalAccount

ess:RedemptionsOfNoncontrollingInterestShares

ess:EssexPortfolioL.P., ess:CommonEquity, us-gaap:GeneralPartner


Redemptions
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-30
Value0-1000.0-1000.0-16000.01000.07000.03000.01000.00-9000.06000.001000.0
Percentage of RedemptionsOfNoncontrollingInterestShares0.0100.0100.0100.0100.0100.0100.0100.00.0100.0100.00.0100.0

ess:EssexPortfolioL.P., ess:CommonEquity, us-gaap:LimitedPartner


Redemptions
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-30
Value01000.01000.0008000.03000.01000.009000.05000.000
Percentage of RedemptionsOfNoncontrollingInterestShares0.0-100.0-100.0-0.00.0114.3100.0100.00.0-100.083.30.00.0

ess:RedemptionsOfNoncontrollingInterestShares us-gaap:StatementEquityComponents

us-gaap:CommonStock


Redemptions
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302017-12-312017-09-302017-06-302017-03-312016-12-31
Value01000.01000.001000.07000.03000.01000.018000.0-9000.06000.001000.0001000.01000.00
Percentage of RedemptionsOfNoncontrollingInterestShares0.0-100.0-100.0-0.0100.0100.0100.0100.00.0100.0100.00.0100.00.00.00.00.00.0

ess:RedevelopmentExpenditures

ess:RedevelopmentExpenditures


Redevelopment
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value109.2747.3889.3811318152416141818201519201812201919249124221911715136.4089.54714116.5738.923149.2158.00818104.957115.132.0154.3152.636
Percentage of RedevelopmentExpenditures100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

ess:RedevelopmentExpenditures dei:LegalEntity

ess:EssexPortfolioL.P.


Redevelopment
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-30
Value109.2747.3889.381131815241614181820151920
Percentage of RedevelopmentExpenditures100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

ess:RelatedPartyTransactionRevenuesfromDevelopmentandRedevelopmentFees us-gaap:RelatedPartyTransactionsByRelatedParty

ess:RelatedPartyTransactionRevenuesfromDevelopmentandRedevelopmentFees

srt:AffiliatedEntity


Related
Period End2021-06-302020-09-302020-06-302020-03-312019-09-302019-06-302019-03-31
Value300000.0600000.0300000.0400000.01200000.01300000.01100000.0
Percentage of RelatedPartyTransactionRevenuesfromDevelopmentandRedevelopmentFees100.0100.0100.0100.0100.0100.0100.0

ess:RevenueGeneratingCapitalExpenditures

ess:RevenueGeneratingCapitalExpenditures


Revenue
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value3216252422173227241726231614242014101918165.68814188.47716588.5938.0943.8733.0891.4230.4380.3043.2152.7671.0270.6112.913.4861.227-0.0070.7960.430.3210.037
Percentage of RevenueGeneratingCapitalExpenditures100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

ess:RevenueGeneratingCapitalExpenditures dei:LegalEntity

ess:EssexPortfolioL.P.


Revenue
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-30
Value32162524221732272417262316142423
Percentage of RevenueGeneratingCapitalExpenditures100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.098.1111.0

ess:StockOptionAndRestrictedStockPlans

ess:StockOptionAndRestrictedStockPlans


Stock
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-09-302013-06-302013-03-312012-09-30
Value0.574-3.7440.00.00.5368.6650.872272.0243.2043.4620.8870.6421.2222.5562.038165.7941.0716.1186.5285.2324.3673.8272.733154.513-3.8398.5811.7691.1033.3521.9560.822
Percentage of StockOptionAndRestrictedStockPlans100.0100.00.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

ess:StockOptionAndRestrictedStockPlans us-gaap:StatementEquityComponents

us-gaap:AdditionalPaidInCapital


Stock
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-09-302013-06-302013-03-312012-09-30
Value0.573-3.7440.00.00.5368.6650.872272.0243.2043.4620.8870.6421.2222.5562.038165.7941.0716.1186.5285.2324.3673.8272.733154.513-3.8398.5811.7691.1033.3521.9560.822
Percentage of StockOptionAndRestrictedStockPlans99.8100.00.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:CommonStock


Stock
Period End2021-06-302019-06-302019-03-312018-09-302018-06-302018-03-312014-09-302014-06-302014-03-312013-09-302013-06-302013-03-312012-09-30
Value0.0010.00.00.00.00.00.00.00.00.00.00.00.0
Percentage of StockOptionAndRestrictedStockPlans0.20.00.00.00.00.0-0.00.00.00.00.00.00.0

ess:StockOptionAndRestrictedStockPlansShares us-gaap:StatementEquityComponents

ess:StockOptionAndRestrictedStockPlansShares

us-gaap:CommonStock


Stock
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312014-12-312014-09-302014-06-302014-03-312013-09-302013-06-302013-03-31
Value5000.039000.0006000.089000.07000.0126000.011000.051000.024000.05000.05000.07000.064000.045000.096000.013000.05000.042000.016000.0
Percentage of StockOptionAndRestrictedStockPlansShares100.0100.00.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

ess:TransferFromRealEstateUnderDevelopmentToCoInvestments

ess:TransferFromRealEstateUnderDevelopmentToCoInvestments


Transfer
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-03-312011-03-31
Value0.590.7470.352-0.0860.6490.8240.565-0.134-0.0730.3130.2130.00.2750.3650.9530.7821.262.081.5873.8472.1472.3380.3212.1332.2181.5622.24231463.1250.0270.00.0120.0
Percentage of TransferFromRealEstateUnderDevelopmentToCoInvestments100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.00.00.0100.00.0

ess:TransferFromRealEstateUnderDevelopmentToCoInvestments dei:LegalEntity

ess:EssexPortfolioL.P.


Transfer
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-30
Value0.590.7470.352-0.0860.6490.8240.565-0.134-0.0730.3130.2130.00.2750.3650.9530.782
Percentage of TransferFromRealEstateUnderDevelopmentToCoInvestments100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.0100.0100.0100.0

ess:TransferFromRealEstateUnderDevelopmentToRentalProperties

ess:TransferFromRealEstateUnderDevelopmentToRentalProperties


Transfer
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-31
Value2180.2670.0931200.1191315.311140.1380.00.8681.229980.0010.2180.6550.7930.747-2.096-2.1470.7591070.6357.318138162-61.293661.513.070.00.0010.00.0670.9841.3544.0520.2427846-0.94641
Percentage of TransferFromRealEstateUnderDevelopmentToRentalProperties100.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

ess:TransferFromRealEstateUnderDevelopmentToRentalProperties dei:LegalEntity

ess:EssexPortfolioL.P.


Transfer
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-30
Value2180.2670.0931200.1191315.311140.1380.00.8681.229980.0010.2180.655
Percentage of TransferFromRealEstateUnderDevelopmentToRentalProperties100.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.0100.0100.0100.0100.0100.0

us-gaap:AmortizationOfDebtDiscountPremium

us-gaap:AmortizationOfDebtDiscountPremium


Amortization
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312011-09-302010-12-312010-09-30
Value4179000.02132000.01497000.01204000.01676000.02297000.02235000.01728000.01197000.0529000.0-629000.0-606000.0-688000.0-664000.0-816000.0-815000.0-1008000.0-3309000.0-3802000.0-3834000.0-3803000.0-3795000.0-4297000.0-3939000.0-4595000.0-6530000.0-9685000.0-4141000.0-3832000.02986000.006000.017000.0
Percentage of AmortizationOfDebtDiscountPremium100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.0100.0

us-gaap:AmortizationOfDebtDiscountPremium dei:LegalEntity

ess:EssexPortfolioL.P.


Amortization
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-30
Value4179000.02132000.01497000.01204000.01676000.02297000.02235000.01728000.01197000.0529000.0-629000.0-606000.0-688000.0-664000.0-816000.0-815000.0
Percentage of AmortizationOfDebtDiscountPremium100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:BusinessCombinationAcquisitionRelatedCosts

us-gaap:BusinessCombinationAcquisitionRelatedCosts


Business
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-31
Value0.0410.0151.4870.0020.0150.0870.0990.0130.0240.0320.0380.0310.0680.0570.4150.3240.2740.5560.4620.2840.2670.8282.4410.3810.4292.3887.1173.85726164.2840.00.00.0
Percentage of BusinessCombinationAcquisitionRelatedCosts100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.00.00.0

us-gaap:BusinessCombinationAcquisitionRelatedCosts dei:LegalEntity

ess:EssexPortfolioL.P.


Business
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-30
Value0.0410.0151.4870.0020.0150.0870.0990.0130.0240.0320.0380.0310.0680.0570.4150.3240.274
Percentage of BusinessCombinationAcquisitionRelatedCosts100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:BusinessCombinationConsiderationTransferred1 us-gaap:ScheduleOfEquityMethodInvestmentEquityMethodInvesteeName, us-gaap:InvestmentType

us-gaap:BusinessCombinationConsiderationTransferred1

ess:JointVenturePartnerBEXIII, ess:TheVillageAtTolucaLake


Business
Period End2021-06-30
Value31
Percentage of BusinessCombinationConsiderationTransferred1100.0

us-gaap:ContractWithCustomerLiabilityRevenueRecognized

us-gaap:ContractWithCustomerLiabilityRevenueRecognized


Contract
Period End2021-06-302021-03-312020-12-31
Value200000.0100000.0200000.0
Percentage of ContractWithCustomerLiabilityRevenueRecognized100.0100.0100.0

us-gaap:CostOfOtherPropertyOperatingExpense

us-gaap:CostOfOtherPropertyOperatingExpense


Cost
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value63656668656462625858
Percentage of CostOfOtherPropertyOperatingExpense100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:CostOfOtherPropertyOperatingExpense dei:LegalEntity

ess:EssexPortfolioL.P.


Cost
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value63656668656462625858
Percentage of CostOfOtherPropertyOperatingExpense100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DeferredOtherTaxExpenseBenefit

us-gaap:DeferredOtherTaxExpenseBenefit


Deferred
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302019-12-312019-09-302019-06-302018-12-312018-09-30
Value1842000.0508000.0-105000.001636000.001457000.0000
Percentage of DeferredOtherTaxExpenseBenefit100.0100.0100.00.0100.00.0100.00.00.00.0

us-gaap:DeferredOtherTaxExpenseBenefit dei:LegalEntity

ess:EssexPortfolioL.P.


Deferred
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302019-12-312019-09-302019-06-302018-12-312018-09-30
Value1842000.0508000.0-105000.001636000.001457000.0000
Percentage of DeferredOtherTaxExpenseBenefit100.0100.0100.00.0100.00.0100.00.00.00.0

us-gaap:Depreciation

us-gaap:Depreciation


Depreciation
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-30
Value1281281301301331311221201191201201201191191171171171151111101091091161161131061061029750494848474543414039383736353131
Percentage of Depreciation100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:Depreciation dei:LegalEntity

ess:EssexPortfolioL.P.


Depreciationdei:
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-30
Value128128130130133131122120119120120120119119117117117
Percentage of Depreciation100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DepreciationAndAmortization

us-gaap:DepreciationAndAmortization


Depreciation
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-09-302015-06-302015-03-312014-09-302014-06-302014-03-312011-06-302010-06-30
Value12812813013013313112212011912012012011911911711711711511111010910911611310610210150-6.165-4.756
Percentage of DepreciationAndAmortization100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DepreciationAndAmortization dei:LegalEntity

ess:EssexPortfolioL.P.


Depreciation
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-30
Value128128130130133131122120119120120120119119117117
Percentage of DepreciationAndAmortization100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DerivativeGainOnDerivative

us-gaap:DerivativeGainOnDerivative


Derivative
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-31
Value2.6332.8442.9842.9772.7881.9842.2722.1541.9752.02.0252.22.2282.32.4452.5382.5312.5842.6363.12.8143.15.6550.00.00.0
Percentage of DerivativeGainOnDerivative100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.00.00.0

us-gaap:DerivativeGainOnDerivative dei:LegalEntity

ess:EssexPortfolioL.P.


Derivative
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-30
Value2.6332.8442.9842.9772.7881.9842.2722.1541.9752.0452.0252.1842.2282.272.4452.5382.531
Percentage of DerivativeGainOnDerivative100.0100.0100.0100.0100.0100.0100.0100.0100.0102.2100.099.3100.098.7100.0100.0100.0

us-gaap:DerivativeGainOnDerivative us-gaap:DerivativeInstrumentRisk

ess:TotalReturnSwapCallable


Derivative
Period End2021-06-302021-03-312020-09-302020-06-30
Value2.72.82.92.8
Percentage of DerivativeGainOnDerivative102.598.597.4100.4

us-gaap:DividendsCommonStock

us-gaap:DividendsCommonStock


Dividends
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-31
Value13513513513513513512812812812812212212212211511511511410410410410695959394-512.93483834746464646-281.883199-79.5280.0-36.618-36.147-35.137-33.926
Percentage of DividendsCommonStock100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.0100.0100.0100.0

us-gaap:DividendsCommonStock us-gaap:StatementEquityComponents

us-gaap:AccumulatedDistributionsInExcessOfNetIncome


Dividends
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-31
Value135135135135135135128128128128122122122122115115115114104104104106959593948483834746464646-281.883199-40.585-38.943-36.618-36.147-35.137-33.926
Percentage of DividendsCommonStock100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0-16.4100.0100.0100.0100.0100.0100.0100.0100.0100.051.00.0100.0100.0100.0100.0

us-gaap:EquityMethodInvestmentDividendsOrDistributions

us-gaap:EquityMethodInvestmentDividendsOrDistributions


Equity
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312011-06-302010-06-30
Value1146331110193425201719192040292015121521149.75317138.7496.055520.00.0-3.2130.0-38.886-2.3660.00.726-0.36
Percentage of EquityMethodInvestmentDividendsOrDistributions100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.00.0100.00.0100.0100.00.0100.0100.0

us-gaap:EquityMethodInvestmentDividendsOrDistributions dei:LegalEntity

ess:EssexPortfolioL.P.


Equity
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-30
Value11463311101934252017191920402920
Percentage of EquityMethodInvestmentDividendsOrDistributions100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:EquitySecuritiesFvNiUnrealizedGainLoss

us-gaap:EquitySecuritiesFvNiUnrealizedGainLoss


Equity
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-31
Value106.276103.2887.623-8.6961.43-0.174-0.0564.51-5.585
Percentage of EquitySecuritiesFvNiUnrealizedGainLoss100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:EquitySecuritiesFvNiUnrealizedGainLoss dei:LegalEntity

ess:EssexPortfolioL.P.


Equity
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-31
Value106.276103.2887.623-8.6961.43-0.174-0.0564.51-5.585
Percentage of EquitySecuritiesFvNiUnrealizedGainLoss100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:EquitySecuritiesFvNiUnrealizedGainLoss us-gaap:FinancialInstrument

us-gaap:CommonStock


Equity
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-30
Value9.49922102.8746.226-4.5491.462-0.371-0.392.226-5.5061.244
Percentage of EquitySecuritiesFvNiUnrealizedGainLoss91.3365.0101.587.481.752.3102.2213.2696.449.498.60.0

us-gaap:DebtSecurities


Equity
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-30
Value0.906-0.647-0.150.4141.397-0.676-0.0320.1970.3340.045-0.138-0.059
Percentage of EquitySecuritiesFvNiUnrealizedGainLoss8.7-10.3-1.512.618.37.8-2.2-113.2-596.41.02.50.0

us-gaap:EquitySecuritiesFvNiUnrealizedGainLoss us-gaap:IncomeStatementLocation

ess:InterestAndOtherIncome


Equity
Period End2021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-30
Value6.3103.37.68.71.4-0.20.0564.5-5.61.20.1
Percentage of EquitySecuritiesFvNiUnrealizedGainLoss100.4100.0100.499.7-100.097.9114.9-100.099.8100.30.00.0

ess:InterestAndOtherIncomeExpense


Equity
Period End2021-06-302020-06-30
Value107.6
Percentage of EquitySecuritiesFvNiUnrealizedGainLoss100.099.7

us-gaap:GainLossOnSaleOfInvestments

us-gaap:GainLossOnSaleOfInvestments


Gain
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-30
Value-112000.02611000.02007000.091000.046000.0-13000.0534000.0239000.0556000.0-58000.068000.0120000.0-131000.0680000.0259000.032000.0
Percentage of GainLossOnSaleOfInvestments100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:GainLossOnSaleOfInvestments dei:LegalEntity

ess:EssexPortfolioL.P.


Gain
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-30
Value-112000.02611000.02007000.091000.046000.0-13000.0534000.0239000.0556000.0-58000.068000.0120000.0-131000.0680000.0259000.032000.0
Percentage of GainLossOnSaleOfInvestments100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:GainLossOnSaleOfProperties us-gaap:InvestmentType

us-gaap:GainLossOnSaleOfProperties

ess:DelanoRedmondWA


Gain
Period End2020-07-31
Value22
Percentage of GainLossOnSaleOfProperties100.0

ess:GlendaleCA


Gain
Period End2020-10-31
Value25
Percentage of GainLossOnSaleOfProperties0.0

ess:HiddenValleySimiValleyCA


Gain
Period End2021-02-28
Value69
Percentage of GainLossOnSaleOfProperties0.0

us-gaap:GainsLossesOnSalesOfInvestmentRealEstate

us-gaap:GainsLossesOnSalesOfInvestmentRealEstate


Gains
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302019-12-312019-09-302019-06-302018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-30
Value0.0100252216-3.1640.00.0390.0220.00.00.2490.0261340.00.0
Percentage of GainsLossesOnSalesOfInvestmentRealEstate0.0100.0100.0100.0100.0100.00.00.0100.00.0100.00.00.0100.00.0100.0100.00.00.0

us-gaap:GainsLossesOnSalesOfInvestmentRealEstate dei:LegalEntity

ess:EssexPortfolioL.P.


Gains
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302019-12-312019-09-302019-06-302018-12-312018-09-302018-06-302017-12-312017-09-302017-06-30
Value0.0100252216-3.1640.00.0390.0220.00.2490.0
Percentage of GainsLossesOnSalesOfInvestmentRealEstate0.0100.0100.0100.0100.0100.00.00.0100.00.0100.00.0100.00.0

us-gaap:IncomeLossAttributableToParent us-gaap:ScheduleOfEquityMethodInvestmentEquityMethodInvesteeName, us-gaap:EquityMethodInvestmentNonconsolidatedInvestee

us-gaap:IncomeLossAttributableToParent

ess:TotalCoInvestment, us-gaap:EquityMethodInvestmentNonconsolidatedInvesteeOrGroupOfInvestees


Income
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-30
Value18171417212116
Percentage of IncomeLossAttributableToParent100.0100.0100.0100.0100.0100.0100.0

us-gaap:IncomeLossAttributableToParent us-gaap:ScheduleOfEquityMethodInvestmentEquityMethodInvesteeName, us-gaap:RelatedPartyTransactionsByRelatedParty

ess:TotalCoInvestment, srt:AffiliatedEntity


Income
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302017-06-30
Value2.32.32.22.12.12.01.81.70.70.30.40.50.5
Percentage of IncomeLossAttributableToParent12.613.514.712.29.99.210.60.00.00.00.00.00.0

us-gaap:IncomeLossFromEquityMethodInvestments

us-gaap:IncomeLossFromEquityMethodInvestments


Income
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value1817121417215721161624161532451910109.7669.56814155.8997.1794.4724.311184.915.629103.57407.2824.211323.5473.1112.34-0.1370.3170.726-1.373-0.688-0.626-0.36-0.041
Percentage of IncomeLossFromEquityMethodInvestments100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:IncomeLossFromEquityMethodInvestments dei:LegalEntity

ess:EssexPortfolioL.P.


Income
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-30
Value1817121417215721161624161532451910
Percentage of IncomeLossFromEquityMethodInvestments100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:IncreaseDecreaseInOtherAccountsPayableAndAccruedLiabilities

us-gaap:IncreaseDecreaseInOtherAccountsPayableAndAccruedLiabilities


Increase
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-30
Value-1.7674.976-53.47740-30.24332-34.7351-41.40953-55.61452-49.31252-65.89254-45.73642-48.03839-25.42835-46.11331-16.81721-20.54234-5.83215-19.01921-10.8768.443-13.80721-9.47714-14.58513-4.1849.281-14.71616
Percentage of IncreaseDecreaseInOtherAccountsPayableAndAccruedLiabilities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:IncreaseDecreaseInOtherAccountsPayableAndAccruedLiabilities dei:LegalEntity

ess:EssexPortfolioL.P.


Increase
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-30
Value-1.7674.976-53.47740-30.24332-34.7351-41.40953-55.61452-49.31252-64.26253
Percentage of IncreaseDecreaseInOtherAccountsPayableAndAccruedLiabilities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.097.599.8

us-gaap:IncreaseDecreaseInOtherOperatingLiabilities

us-gaap:IncreaseDecreaseInOtherOperatingLiabilities


Increase
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-30
Value3750000.0494000.0139000.0-220000.0-448000.01278000.0480000.0644000.0628000.0454000.0477000.0119000.0234000.0345000.0-569000.0-247000.0-91000.0737000.0-916000.0-329000.0425000.0324000.0412000.088000.01041000.0346000.0-205000.0728000.0573000.092000.0-177000.0-67000.0-192000.0458000.01280000.0163000.0278000.0-83000.0394000.0-34000.0452000.0748000.0698000.0724000.0
Percentage of IncreaseDecreaseInOtherOperatingLiabilities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:IncreaseDecreaseInOtherOperatingLiabilities dei:LegalEntity

ess:EssexPortfolioL.P.


Increase
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-30
Value3750000.0494000.0139000.0-220000.0-448000.01278000.0480000.0644000.0628000.0454000.0477000.0119000.0234000.0345000.0-569000.0-247000.0
Percentage of IncreaseDecreaseInOtherOperatingLiabilities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:IncreaseDecreaseInOtherReceivables

us-gaap:IncreaseDecreaseInOtherReceivables


Increase
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value4329000.04201000.02109000.0739000.0480000.0355000.01489000.01627000.01472000.01424000.01420000.01383000.01339000.01294000.01292000.01163000.0928000.0647000.0
Percentage of IncreaseDecreaseInOtherReceivables100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:IncreaseDecreaseInOtherReceivables dei:LegalEntity

ess:EssexPortfolioL.P.


Increase
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-30
Value4329000.04201000.02109000.0739000.0480000.0355000.01489000.01627000.01472000.01424000.01420000.01383000.01339000.01294000.01292000.01163000.0
Percentage of IncreaseDecreaseInOtherReceivables100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets

us-gaap:IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets


Increase
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-30
Value-35.71241-1.358-4.1369.0520.172-9.943-3.7333.1954.73-2.841-2.0342.3623.7160.9984.536-1.214.5362.984-4.5984.788-0.846-2.118-4.79510-3.548-6.905-6.4980.362-2.787-18.101200.962-1.7645.835-0.7671.8572.563-0.5482.417-1.7081.011-1.294-0.829
Percentage of IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets dei:LegalEntity

ess:EssexPortfolioL.P.


Increase
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-30
Value-35.71241-1.358-4.1369.0520.172-9.943-3.7333.1954.73-2.841-2.0342.3623.7160.161.093
Percentage of IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.016.024.1

us-gaap:IncreaseDecreaseInRestrictedCashAndInvestmentsForOperatingActivities

us-gaap:IncreaseDecreaseInRestrictedCashAndInvestmentsForOperatingActivities


Increase
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-30
Value0.979-0.0110.00.00.0-0.0960.32-0.073-0.247-0.005-3.390.0194.195-0.411.497-1.3520.128-89.98579-8.9262.414-59.3465211-4.663-45.145-2.9356.118-2.512-8.097351.69-19.98-7.301112.322-0.5172.5412.045-2.074-1.1367.462.687
Percentage of IncreaseDecreaseInRestrictedCashAndInvestmentsForOperatingActivities100.0100.00.00.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:IncreaseDecreaseInRestrictedCashAndInvestmentsForOperatingActivities dei:LegalEntity

ess:EssexPortfolioL.P.


Increase
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-30
Value0.979-0.0110.00.00.0-0.0960.32-0.073-0.247-0.005-3.390.0194.195-0.411.757-2.127
Percentage of IncreaseDecreaseInRestrictedCashAndInvestmentsForOperatingActivities100.0100.00.00.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0117.4157.3

us-gaap:IncrementalCommonSharesAttributableToShareBasedPaymentArrangements

us-gaap:IncrementalCommonSharesAttributableToShareBasedPaymentArrangements


Incremental
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-31
Value79069.031066.08591.015528.057337.0122560.0103010.081081.0
Percentage of IncrementalCommonSharesAttributableToShareBasedPaymentArrangements100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:IncrementalCommonSharesAttributableToShareBasedPaymentArrangements dei:LegalEntity

ess:EssexPortfolioL.P.


Incremental
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-31
Value79069.031066.08591.015528.057337.0122560.0103010.081081.0
Percentage of IncrementalCommonSharesAttributableToShareBasedPaymentArrangements100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:InterestAndOtherIncome

us-gaap:InterestAndOtherIncome


Interest
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-30
Value286.51211-5.221178.6858.347121.7698.4376.8955.9096.6885.795.3626.7647.7454.9439.4095.2084.3237.3673.2544.1993.1262.9922.8142.8792.3072.3871.9175.0232.9643.0035.4552.4134.7822.7412.6286.9877.1115.7887.085
Percentage of InterestAndOtherIncome100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:InterestAndOtherIncome dei:LegalEntity

ess:EssexPortfolioL.P.


Interest
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-30
Value286.51211-5.221178.6858.347121.7698.4376.8955.9096.6885.795.362
Percentage of InterestAndOtherIncome100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:InterestPaidCapitalized

us-gaap:InterestPaidCapitalized


Interest
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-30
Value1.72.12.3153.34.24.85.1696.76.45.95.4084.94.24.23.863.43.33.33.0863.23.13.13.3713.94.04.34.716.18.63.13.7864.64.43.73.5462.92.31.61.346.8955
Percentage of InterestPaidCapitalized100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:InterestPaidCapitalized dei:LegalEntity

ess:EssexPortfolioL.P.


Interest
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-30
Value1.72.12.3153.34.24.85.1696.76.45.95.4084.94.24.23.863.4
Percentage of InterestPaidCapitalized100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:InvestmentIncomeAmortizationOfDiscount

us-gaap:InvestmentIncomeAmortizationOfDiscount


Investment
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-31
Value121.7362.4682.394115.8045.5585.3114.6884.484.3124.1573.9913.8583.6973.5733.443.3143.7013.7563.3773.2352.9212.8562.772.592.0271.9381.8921.8881.3991.3771.3191.291.2621.256
Percentage of InvestmentIncomeAmortizationOfDiscount100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:InvestmentIncomeAmortizationOfDiscount dei:LegalEntity

ess:EssexPortfolioL.P.


Investment
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-30
Value121.7362.4682.394115.8045.5585.3114.6884.484.3124.1573.9913.858
Percentage of InvestmentIncomeAmortizationOfDiscount100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:LimitedLiabilityCompanyLLCOrLimitedPartnershipLPManagingMemberOrGeneralPartnerOwnershipInterest us-gaap:Ownership

us-gaap:LimitedLiabilityCompanyLLCOrLimitedPartnershipLPManagingMemberOrGeneralPartnerOwnershipInterest

ess:OperatingPartnership


Limited
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-31
Value096.6095.63400.966
Percentage of LimitedLiabilityCompanyLLCOrLimitedPartnershipLPManagingMemberOrGeneralPartnerOwnershipInterest0.0100.00.0100.00.0100.0

us-gaap:MarketableSecuritiesRealizedGainLoss

us-gaap:MarketableSecuritiesRealizedGainLoss


Marketable
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312012-12-312012-09-302012-06-302011-12-312011-09-30
Value-0.12.62.00.0910.0460.0130.60.20.6-0.10.00.1-0.20.70.20.0320.0131.60.3190.00.50.4560.0
Percentage of MarketableSecuritiesRealizedGainLoss100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.0100.00.0

us-gaap:MinorityInterestChangeInRedemptionValue

us-gaap:MinorityInterestChangeInRedemptionValue


Minority
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-31
Value-2512000.0-4083000.0-2392000.02522000.0-598000.04767000.01667000.0-2247000.0339000.0-1767000.01089000.0-408000.0108000.0-1953000.0838000.0214000.0-386000.0-731000.0-575000.0422000.01672000.0-751000.0-1520000.0-711000.01133000.0-1517000.0-1814000.0
Percentage of MinorityInterestChangeInRedemptionValue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:MinorityInterestChangeInRedemptionValue dei:LegalEntity

ess:EssexPortfolioL.P.


Minority
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value-2512000.0-4083000.0-2392000.02522000.0-598000.04767000.01667000.0-2247000.0339000.0-1767000.01089000.0-408000.0108000.0-1953000.0
Percentage of MinorityInterestChangeInRedemptionValue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:MinorityInterestChangeInRedemptionValue dei:LegalEntity, us-gaap:PartnerCapitalComponents

ess:EssexPortfolioL.P., us-gaap:NoncontrollingInterest


Minority
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value147000.022000.0078000.0-1000.044000.001000.047000.01262000.056000.012000.000
Percentage of MinorityInterestChangeInRedemptionValue-5.9-0.5-0.03.10.20.90.0-0.013.9-71.45.1-2.90.0-0.0

us-gaap:MinorityInterestChangeInRedemptionValue dei:LegalEntity, us-gaap:PartnerCapitalComponents, us-gaap:PartnerTypeOfPartnersCapitalAccount

ess:EssexPortfolioL.P., ess:CommonEquity, us-gaap:GeneralPartner


Minority
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value-2574000.0-4178000.0-2513000.02346000.0-199000.04741000.01621000.0-2309000.0288000.0-3027000.0889000.0-386000.0311000.0-1957000.0
Percentage of MinorityInterestChangeInRedemptionValue102.5102.3105.193.033.399.597.2102.885.0171.381.694.6288.0100.2

ess:EssexPortfolioL.P., ess:CommonEquity, us-gaap:LimitedPartner


Minority
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value-85000.073000.0121000.098000.0-398000.0-18000.046000.061000.04000.0-2000.0144000.0-34000.0-203000.04000.0
Percentage of MinorityInterestChangeInRedemptionValue3.4-1.8-5.13.966.6-0.42.8-2.71.20.113.28.3-188.0-0.2

us-gaap:MinorityInterestChangeInRedemptionValue us-gaap:StatementEquityComponents

us-gaap:AdditionalPaidInCapital


Minority
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-31
Value-2574000.0-4178000.0-2513000.02346000.0-199000.04741000.01621000.0-2309000.0288000.0-3027000.0889000.0-386000.0311000.0-1957000.0780000.0136000.0-547000.0-505000.0-613000.0420000.01206000.0-841000.0-1520000.0-711000.01133000.0-1517000.0-1814000.0
Percentage of MinorityInterestChangeInRedemptionValue102.5102.3105.193.033.399.597.2102.885.0171.381.694.6288.0100.293.163.6141.769.1106.699.572.1112.0100.0100.0100.0100.0100.0

us-gaap:NoncontrollingInterest


Minority
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-09-302015-06-302015-03-31
Value62000.095000.0121000.0176000.0-399000.026000.046000.062000.051000.01260000.0200000.0-22000.0-203000.04000.058000.078000.0161000.0-226000.038000.02000.0466000.090000.0000
Percentage of MinorityInterestChangeInRedemptionValue-2.5-2.3-5.17.066.70.52.8-2.815.0-71.318.45.4-188.0-0.26.936.4-41.730.9-6.60.527.9-12.0-0.00.0-0.0

us-gaap:NoncontrollingInterestIncreaseFromBusinessCombination

us-gaap:NoncontrollingInterestIncreaseFromBusinessCombination


Noncontrolling
Period End2020-09-302020-06-302020-03-312019-09-302019-06-30
Value0.00.01.3490.065
Percentage of NoncontrollingInterestIncreaseFromBusinessCombination0.00.0100.00.0100.0

us-gaap:NoncontrollingInterestIncreaseFromBusinessCombination dei:LegalEntity

ess:EssexPortfolioL.P.


Noncontrolling
Period End2020-09-302020-06-302020-03-312019-09-302019-06-30
Value0.00.01.3490.065
Percentage of NoncontrollingInterestIncreaseFromBusinessCombination0.00.0100.00.0100.0

us-gaap:NoncontrollingInterestIncreaseFromBusinessCombination dei:LegalEntity, us-gaap:PartnerCapitalComponents

ess:EssexPortfolioL.P., us-gaap:NoncontrollingInterest


Noncontrolling
Period End2020-09-302020-06-302020-03-312019-09-302019-06-30
Value0.00.01.3490.065
Percentage of NoncontrollingInterestIncreaseFromBusinessCombination0.00.0100.00.0100.0

us-gaap:NoncontrollingInterestIncreaseFromBusinessCombination us-gaap:StatementEquityComponents

us-gaap:NoncontrollingInterest


Noncontrolling
Period End2020-09-302020-06-302020-03-312019-09-302019-06-30
Value0.00.01.3490.065
Percentage of NoncontrollingInterestIncreaseFromBusinessCombination0.00.0100.00.0100.0

us-gaap:NoncontrollingInterestIncreaseFromSubsidiaryEquityIssuance

us-gaap:NoncontrollingInterestIncreaseFromSubsidiaryEquityIssuance


Noncontrolling
Period End2021-06-302021-03-312017-09-302017-06-302017-03-31
Value0.01.90.00.022
Percentage of NoncontrollingInterestIncreaseFromSubsidiaryEquityIssuance0.0100.00.00.0100.0

us-gaap:NoncontrollingInterestIncreaseFromSubsidiaryEquityIssuance dei:LegalEntity

ess:EssexPortfolioL.P.


Noncontrolling
Period End2021-06-302021-03-31
Value0.01.9
Percentage of NoncontrollingInterestIncreaseFromSubsidiaryEquityIssuance0.0100.0

us-gaap:NoncontrollingInterestIncreaseFromSubsidiaryEquityIssuance dei:LegalEntity, us-gaap:PartnerCapitalComponents

ess:EssexPortfolioL.P., us-gaap:NoncontrollingInterest


Noncontrolling
Period End2021-06-302021-03-31
Value0.01.9
Percentage of NoncontrollingInterestIncreaseFromSubsidiaryEquityIssuance0.0100.0

us-gaap:NoncontrollingInterestIncreaseFromSubsidiaryEquityIssuance us-gaap:StatementEquityComponents

us-gaap:NoncontrollingInterest


Noncontrolling
Period End2021-06-302021-03-312017-09-302017-06-302017-03-31
Value0.01.90.00.022
Percentage of NoncontrollingInterestIncreaseFromSubsidiaryEquityIssuance0.0100.00.00.0100.0

us-gaap:OperatingLeaseLeaseIncome

us-gaap:OperatingLeaseLeaseIncome


Operating
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value348352359368368389372364359353
Percentage of OperatingLeaseLeaseIncome100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OperatingLeaseLeaseIncome dei:LegalEntity

ess:EssexPortfolioL.P.


Operating
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value348352359368368389372364359353
Percentage of OperatingLeaseLeaseIncome100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OperatingLeaseLeaseIncome us-gaap:ConsolidationItems, us-gaap:ProductOrService

us-gaap:CorporateNonSegment, ess:RentalAndOtherPropertyRevenues


Operating
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value2.8744.54119189.6866.185-5.90211105.267
Percentage of OperatingLeaseLeaseIncome0.81.35.45.12.61.6-1.63.02.91.5

us-gaap:OperatingLeaseLeaseIncome us-gaap:ConsolidationItems, us-gaap:ProductOrService, us-gaap:StatementBusinessSegments

us-gaap:OperatingSegments, ess:RentalAndOtherPropertyRevenues, ess:NorthernCalifornia


Operating
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value143146148148153164157140136136
Percentage of OperatingLeaseLeaseIncome41.141.641.240.441.842.142.338.538.038.6

us-gaap:OperatingSegments, ess:RentalAndOtherPropertyRevenues, ess:SeattleMetro


Operating
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value59585960606364616060
Percentage of OperatingLeaseLeaseIncome17.016.616.616.516.516.417.316.716.817.1

us-gaap:OperatingSegments, ess:RentalAndOtherPropertyRevenues, ess:SouthernCalifornia


Operating
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value143143132140143155156151152151
Percentage of OperatingLeaseLeaseIncome41.140.536.938.139.139.941.941.742.442.8

us-gaap:OperatingLeaseLeaseIncome us-gaap:MortgageLoansOnRealEstateDescriptionTypeOfProperty, us-gaap:ProductOrService

ess:RealEstatePropertyAcquired, ess:RentalAndOtherPropertyRevenues


Operating
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value131319201921192.9910.4750.987
Percentage of OperatingLeaseLeaseIncome4.03.95.55.55.45.65.20.80.10.3

ess:RealEstatePropertyDevelopment, ess:RentalAndOtherPropertyRevenues


Operating
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value7.56.936.0945.4614.424.0753.3041.8831.2171.158
Percentage of OperatingLeaseLeaseIncome2.22.01.71.51.21.00.90.50.30.3

ess:RealEstatePropertyNonResidentialOtherNet, ess:RentalAndOtherPropertyRevenues


Operating
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value11132.549231511-16.227161510
Percentage of OperatingLeaseLeaseIncome3.23.80.76.44.13.1-4.44.64.43.1

ess:RealEstatePropertyRedevelopment, ess:RentalAndOtherPropertyRevenues


Operating
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value4.1494.594.284.2775.0965.4015.2475.2725.245.229
Percentage of OperatingLeaseLeaseIncome1.21.31.21.21.41.41.41.41.51.5

ess:RealEstatePropertySameProperty, ess:RentalAndOtherPropertyRevenues


Operating
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value314317305314323346361337336335
Percentage of OperatingLeaseLeaseIncome90.390.184.885.587.988.996.892.693.694.8

ess:StraightLineRentConcession, ess:RentalAndOtherPropertyRevenues


Operating
Period End2021-06-302021-03-312020-06-30
Value-2.945-3.3692.975
Percentage of OperatingLeaseLeaseIncome-0.8-1.00.8

us-gaap:OperatingLeaseLeaseIncome us-gaap:ProductOrService

ess:OtherPropertyLeasingRevenue


Operating
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value5.4355.5716.2846.3915.0626.2526.2496.5036.2086.083
Percentage of OperatingLeaseLeaseIncome1.61.61.71.71.41.61.71.81.71.7

ess:Rental


Operating
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value343347353362363383366358353347
Percentage of OperatingLeaseLeaseIncome98.498.498.398.398.698.498.398.298.398.3

ess:RentalAndOtherPropertyRevenues


Operating
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value348352359368368389372364359353
Percentage of OperatingLeaseLeaseIncome100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OperatingLeasePayments

us-gaap:OperatingLeasePayments


Operating
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value3578000.01738000.01700000.01762000.01715000.01715000.01714000.01705000.01698000.01694000.00000
Percentage of OperatingLeasePayments100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.00.00.00.0

us-gaap:OperatingLeasePayments dei:LegalEntity

ess:EssexPortfolioL.P.


Operating
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value3578000.01738000.01700000.01762000.01715000.01715000.01714000.01705000.01698000.01694000.00000
Percentage of OperatingLeasePayments100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.00.00.00.0

us-gaap:OtherComprehensiveIncomeLossBeforeReclassificationsNetOfTax dei:LegalEntity, us-gaap:PartnerCapitalComponents

us-gaap:OtherComprehensiveIncomeLossBeforeReclassificationsNetOfTax

ess:EssexPortfolioL.P., us-gaap:AccumulatedGainLossNetCashFlowHedgeParent


Other
Period End2020-09-302020-06-302020-03-312019-09-30
Value3.2936.477-7.4291.929
Percentage of OtherComprehensiveIncomeLossBeforeReclassificationsNetOfTax100.0100.0100.0100.0

ess:EssexPortfolioL.P., us-gaap:AccumulatedNetUnrealizedInvestmentGainLoss


Other
Period End2020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-30
Value0.0920.035-0.305-0.0250.1050.1230.012
Percentage of OtherComprehensiveIncomeLossBeforeReclassificationsNetOfTax2.80.54.1-1.30.00.00.0

ess:EssexPortfolioL.P., us-gaap:AccumulatedOtherComprehensiveIncome


Other
Period End2020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-30
Value3.3856.512-7.7341.904-2.3020.0954.99
Percentage of OtherComprehensiveIncomeLossBeforeReclassificationsNetOfTax102.8100.5104.198.70.00.00.0

us-gaap:OtherComprehensiveIncomeLossBeforeReclassificationsNetOfTax dei:LegalEntity, us-gaap:StatementEquityComponents

ess:EssexPortfolioL.P., us-gaap:AccumulatedGainLossNetCashFlowHedgeParent


Other
Period End2021-06-302021-03-31
Value0.4674.405
Percentage of OtherComprehensiveIncomeLossBeforeReclassificationsNetOfTax0.00.0

ess:EssexPortfolioL.P., us-gaap:AccumulatedNetUnrealizedInvestmentGainLoss


Other
Period End2021-06-302021-03-31
Value0.1720.085
Percentage of OtherComprehensiveIncomeLossBeforeReclassificationsNetOfTax0.00.0

ess:EssexPortfolioL.P., us-gaap:AccumulatedOtherComprehensiveIncome


Other
Period End2021-06-302021-03-31
Value0.6394.49
Percentage of OtherComprehensiveIncomeLossBeforeReclassificationsNetOfTax0.00.0

us-gaap:OtherComprehensiveIncomeLossBeforeReclassificationsNetOfTax us-gaap:StatementEquityComponents

us-gaap:AccumulatedGainLossNetCashFlowHedgeParent


Other
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-30
Value0.4514.2553.1836.258-7.1781.863
Percentage of OtherComprehensiveIncomeLossBeforeReclassificationsNetOfTax0.00.096.796.696.696.6

us-gaap:AccumulatedNetUnrealizedInvestmentGainLoss


Other
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302017-06-302017-03-31
Value0.1660.0820.0890.033-0.294-0.0240.1020.1190.011-0.021-0.0741.2380.4910.173
Percentage of OtherComprehensiveIncomeLossBeforeReclassificationsNetOfTax0.00.02.70.54.0-1.20.00.00.00.00.00.00.00.0

us-gaap:AccumulatedOtherComprehensiveIncome


Other
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302017-06-302017-03-31
Value0.6174.3373.2726.291-7.4721.839-2.2240.0924.8235.2117.9576.1213.6245.669
Percentage of OtherComprehensiveIncomeLossBeforeReclassificationsNetOfTax0.00.099.497.1100.695.30.00.00.00.00.00.00.00.0

us-gaap:OtherComprehensiveIncomeLossCashFlowHedgeGainLossReclassificationAfterTax

us-gaap:OtherComprehensiveIncomeLossCashFlowHedgeGainLossReclassificationAfterTax


Other
Period End2020-12-312020-09-302020-06-30
Value-56000.00-3282000.0
Percentage of OtherComprehensiveIncomeLossCashFlowHedgeGainLossReclassificationAfterTax100.00.0100.0

us-gaap:OtherComprehensiveIncomeLossCashFlowHedgeGainLossReclassificationAfterTax dei:LegalEntity

ess:EssexPortfolioL.P.


Other
Period End2020-12-312020-09-302020-06-30
Value-56000.00-3282000.0
Percentage of OtherComprehensiveIncomeLossCashFlowHedgeGainLossReclassificationAfterTax100.00.0100.0

us-gaap:OtherComprehensiveIncomeLossCashFlowHedgeGainLossReclassificationAfterTax dei:LegalEntity, us-gaap:PartnerCapitalComponents

ess:EssexPortfolioL.P., us-gaap:AccumulatedOtherComprehensiveIncome


Other
Period End2020-12-312020-09-302020-06-30
Value-56000.00-3282000.0
Percentage of OtherComprehensiveIncomeLossCashFlowHedgeGainLossReclassificationAfterTax100.00.0100.0

us-gaap:OtherComprehensiveIncomeLossCashFlowHedgeGainLossReclassificationAfterTax us-gaap:StatementEquityComponents

us-gaap:AccumulatedOtherComprehensiveIncome


Other
Period End2020-12-312020-09-302020-06-30
Value-54000.00-3171000.0
Percentage of OtherComprehensiveIncomeLossCashFlowHedgeGainLossReclassificationAfterTax96.40.096.6

us-gaap:NoncontrollingInterest


Other
Period End2020-12-312020-09-302020-06-30
Value-2000.00-111000.0
Percentage of OtherComprehensiveIncomeLossCashFlowHedgeGainLossReclassificationAfterTax3.60.03.4

us-gaap:OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax

us-gaap:OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-31
Value0.1720.0850.1170.0920.035-0.3050.078-0.0250.1050.123-0.0310.012-0.022-0.0771.3181.2790.5080.1790.672-1.805-0.0120.3172.4081.578-4.0551.9343.7116.167-1.546-2.03-2.7120.7020.592-0.138-3.1315.386-1.1910.3471.728-2.5170.9621.157
Percentage of OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax dei:LegalEntity

ess:EssexPortfolioL.P.


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value0.1720.0850.1170.0920.035-0.3050.078-0.0250.1050.123-0.0310.012-0.022-0.077
Percentage of OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax dei:LegalEntity, us-gaap:PartnerCapitalComponents

ess:EssexPortfolioL.P., us-gaap:AccumulatedOtherComprehensiveIncome


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value0.1720.0850.1170.0920.035-0.3050.078-0.0250.1050.123-0.0310.012-0.022-0.077
Percentage of OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax us-gaap:StatementEquityComponents

us-gaap:AccumulatedOtherComprehensiveIncome


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-31
Value0.1660.0820.1130.0890.033-0.2940.075-0.0240.1020.119-0.030.011-0.021-0.0741.2741.2380.4910.1730.65-1.746-0.0120.3072.331.528-3.9271.8733.6615.893-1.5-1.914-2.5660.6640.56-0.13-2.9225.059-1.1180.3261.625-2.3570.8971.08
Percentage of OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax96.596.596.696.794.396.496.296.097.196.796.891.795.596.196.796.896.796.696.796.7100.096.896.896.896.896.898.795.697.094.394.694.694.694.293.393.993.993.994.093.693.293.3

us-gaap:NoncontrollingInterest


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-31
Value0.0060.0030.0040.0030.002-0.0110.003-0.0010.0030.004-0.0010.001-0.001-0.0030.0440.0410.0170.0060.022-0.0590.00.010.0780.05-0.1280.0610.050.274-0.046-0.116-0.1460.0380.032-0.008-0.2090.327-0.0730.0210.103-0.160.0650.077
Percentage of OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax3.53.53.43.35.73.63.84.02.93.33.28.34.53.93.33.23.33.43.33.3-0.03.23.23.23.23.21.34.43.05.75.45.45.45.86.76.16.16.16.06.46.86.7

us-gaap:OtherDepreciationAndAmortization us-gaap:ScheduleOfEquityMethodInvestmentEquityMethodInvesteeName, us-gaap:EquityMethodInvestmentNonconsolidatedInvestee

us-gaap:OtherDepreciationAndAmortization

ess:TotalCoInvestment, us-gaap:EquityMethodInvestmentNonconsolidatedInvesteeOrGroupOfInvestees


Other
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-30
Value31322928283028
Percentage of OtherDepreciationAndAmortization100.0100.0100.0100.0100.0100.0100.0

us-gaap:PartnersCapitalAccountDistributions dei:LegalEntity

us-gaap:PartnersCapitalAccountDistributions

ess:EssexPortfolioL.P.


Partners
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value140140139140140140133133132132126127127127
Percentage of PartnersCapitalAccountDistributions100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:PartnersCapitalAccountDistributions dei:LegalEntity, us-gaap:PartnerCapitalComponents, us-gaap:PartnerTypeOfPartnersCapitalAccount

ess:EssexPortfolioL.P., ess:CommonEquity, us-gaap:GeneralPartner


Partners
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value135135135135135135128128128128122122122122
Percentage of PartnersCapitalAccountDistributions96.696.696.696.696.696.696.696.696.696.696.696.796.796.7

ess:EssexPortfolioL.P., ess:CommonEquity, us-gaap:LimitedPartner


Partners
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value4.7954.7944.7674.7694.7674.7724.4874.4874.5014.4974.34.2524.2544.253
Percentage of PartnersCapitalAccountDistributions3.43.43.43.43.43.43.43.43.43.43.43.33.33.3

us-gaap:PaymentOfFinancingAndStockIssuanceCosts

us-gaap:PaymentOfFinancingAndStockIssuanceCosts


Payment
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value2.9273.4340.0116.4642.1255.1721.4523.5730.4285.4450.1570.3220.4883.2830.00.2182.8761.0142.6260.3383.9251.0373.714-0.1360.04.4560.4610.547.1079.2943.566-0.0023.1220.7160.2923.7932.3290.2931.0693.0230.9670.4742.2771.2090.2280.395
Percentage of PaymentOfFinancingAndStockIssuanceCosts100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:PaymentOfFinancingAndStockIssuanceCosts dei:LegalEntity

ess:EssexPortfolioL.P.


Payment
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-30
Value2.9273.4340.0116.4642.1255.1721.4523.5730.4285.4450.1570.3220.4883.2830.00.218
Percentage of PaymentOfFinancingAndStockIssuanceCosts100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.0

us-gaap:PaymentsOfDebtExtinguishmentCosts

us-gaap:PaymentsOfDebtExtinguishmentCosts


Payments
Period End2021-06-302021-03-312020-12-312020-09-30
Value162.1320.017
Percentage of PaymentsOfDebtExtinguishmentCosts100.0100.00.0100.0

us-gaap:PaymentsOfDebtExtinguishmentCosts dei:LegalEntity

ess:EssexPortfolioL.P.


Payments
Period End2021-06-302021-03-312020-12-312020-09-30
Value162.1320.017
Percentage of PaymentsOfDebtExtinguishmentCosts100.0100.00.0100.0

us-gaap:PaymentsOfDebtExtinguishmentCosts us-gaap:DebtInstrument, us-gaap:LongtermDebtType

ess:SeniorUnsecuredNotesMaturing2022, us-gaap:SeniorNotes


Payments
Period End2020-08-31
Value19
Percentage of PaymentsOfDebtExtinguishmentCosts0.0

us-gaap:PaymentsOfDistributionsToAffiliates

us-gaap:PaymentsOfDistributionsToAffiliates


Payments
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value7.3267.4617.6887.6898.1357.4787.7246.4276.8646.9786.9137.0719.145.9266.1476.0348.9465.4255.496.9648.0224.8585.2664.7567.4593.5744.2485.7073.5413.9694.384.2975.8163.9953.8163.7415.2843.853.6683.6284.6395.0285.1017.3576.9985.339
Percentage of PaymentsOfDistributionsToAffiliates100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:PaymentsOfDistributionsToAffiliates dei:LegalEntity

ess:EssexPortfolioL.P.


Payments
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-30
Value2.1242.1142.1222.1352.1362.0161.312.0531.9661.9591.9032.1552.1932.2672.1841.968
Percentage of PaymentsOfDistributionsToAffiliates29.028.327.627.826.327.017.031.928.628.127.530.524.038.335.532.6

us-gaap:PaymentsOfOrdinaryDividends

us-gaap:PaymentsOfOrdinaryDividends


Payments
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value13513513513513512812812812812212212212211511511511410410410410695959493838382-1.4279646464641404038363535343231313030
Percentage of PaymentsOfOrdinaryDividends100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:PaymentsOfOrdinaryDividends dei:LegalEntity

ess:EssexPortfolioL.P.


Payments
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-30
Value141140141141141134135132133127127127129119119119
Percentage of PaymentsOfOrdinaryDividends103.8104.0104.1104.1104.4104.2105.0103.4103.8104.1104.1104.0105.7103.2103.4103.5

us-gaap:PaymentsRelatedToTaxWithholdingForShareBasedCompensation

us-gaap:PaymentsRelatedToTaxWithholdingForShareBasedCompensation


Payments
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-31
Value05445000.00005664000.0173000.0020000.03495000.0846000.0012000.011000.0198000.0085000.033000.0164000.0
Percentage of PaymentsRelatedToTaxWithholdingForShareBasedCompensation0.0100.00.00.00.0100.0100.00.0100.0100.0100.00.0100.0100.0100.00.0100.0100.0100.0

us-gaap:PaymentsRelatedToTaxWithholdingForShareBasedCompensation dei:LegalEntity

ess:EssexPortfolioL.P.


Payments
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-30
Value05445000.00005664000.0173000.0020000.03495000.0846000.0012000.011000.0198000.00
Percentage of PaymentsRelatedToTaxWithholdingForShareBasedCompensation0.0100.00.00.00.0100.0100.00.0100.0100.0100.00.0100.0100.0100.00.0

us-gaap:PaymentsToAcquireEquityMethodInvestments

us-gaap:PaymentsToAcquireEquityMethodInvestments


Payments
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value11049521721219613841126622.3764156618623120622546508.7592148481177018391149554510144101121247816260.937120.066
Percentage of PaymentsToAcquireEquityMethodInvestments100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.0

us-gaap:PaymentsToAcquireEquityMethodInvestments dei:LegalEntity

ess:EssexPortfolioL.P.


Payments
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-30
Value11049521721219613841126622.37641566186
Percentage of PaymentsToAcquireEquityMethodInvestments100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:PaymentsToAcquireMarketableSecurities

us-gaap:PaymentsToAcquireMarketableSecurities


Payments
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-30
Value0.2132344270.258103.8052.555318.4138.8221.13514132.22532
Percentage of PaymentsToAcquireMarketableSecurities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:PaymentsToAcquireMarketableSecurities dei:LegalEntity

ess:EssexPortfolioL.P.


Payments
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-30
Value0.2132344270.258103.8052.555318.4138.8221.13514132.22532
Percentage of PaymentsToAcquireMarketableSecurities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:PaymentsToAcquireNotesReceivable

us-gaap:PaymentsToAcquireNotesReceivable


Payments
Period End2021-06-302021-03-312020-12-312020-09-302019-12-312019-09-302018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-31
Value1.7286911413901400.00.00.00.029644.08.75194.3750.00.00.0
Percentage of PaymentsToAcquireNotesReceivable100.0100.0100.0100.0100.0100.00.00.00.00.0100.0100.0100.0100.0100.0100.00.00.00.0

us-gaap:PaymentsToAcquireNotesReceivable dei:LegalEntity

ess:EssexPortfolioL.P.


Payments
Period End2021-06-302021-03-312020-12-312020-09-302019-12-312019-09-302018-12-312018-09-302017-12-312017-09-30
Value1.7286911413901400.00.02964
Percentage of PaymentsToAcquireNotesReceivable100.0100.0100.0100.0100.0100.00.00.0100.0100.0

us-gaap:PaymentsToAcquireNotesReceivable us-gaap:RealEstateAndAccumulatedDepreciationDescriptionOfProperty

ess:MultifamilyDevelopmentCommunitiesInLosAngelesCalifornia


Payments
Period End2020-09-30
Value7.5
Percentage of PaymentsToAcquireNotesReceivable54.5

ess:MultifamilyDevelopmentCommunitiesInSacramentoCalifornia


Payments
Period End2020-09-302020-04-30
Value126.7
Percentage of PaymentsToAcquireNotesReceivable93.70.0

us-gaap:PaymentsToDevelopRealEstateAssets

us-gaap:PaymentsToDevelopRealEstateAssets


Payments
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value15191835292527444639
Percentage of PaymentsToDevelopRealEstateAssets100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:PaymentsToDevelopRealEstateAssets dei:LegalEntity

ess:EssexPortfolioL.P.


Payments
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value15191835292527444639
Percentage of PaymentsToDevelopRealEstateAssets100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:PaymentsToMinorityShareholders

us-gaap:PaymentsToMinorityShareholders


Payments
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value2.0630.2550.1421.2680.3351.368220.0011.966121.1760.10.0570.0231.3212.4581.070.0760.2021.1441.0890.00.1330.3342.1541.0462.1572.4490.1010.5983.0960.6881.3295.3910.9140.2460.4350.7420.6263.2770.7420.4412.68200.637
Percentage of PaymentsToMinorityShareholders100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:PaymentsToMinorityShareholders dei:LegalEntity

ess:EssexPortfolioL.P.


Payments
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-30
Value2.0630.2550.1421.2680.3351.368220.0011.966121.1760.10.0570.0231.321
Percentage of PaymentsToMinorityShareholders100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.0100.0

us-gaap:ProceedsFromCollectionOfNotesReceivable us-gaap:AccountsNotesLoansAndFinancingReceivableByReceivableType

us-gaap:ProceedsFromCollectionOfNotesReceivable

ess:SecuredNoteReceivable11.00InterestRateDueOctober2023


Proceeds
Period End2021-06-30
Value36
Percentage of ProceedsFromCollectionOfNotesReceivable100.0

us-gaap:ProceedsFromContributionsFromAffiliates

us-gaap:ProceedsFromContributionsFromAffiliates


Proceeds
Period End2021-06-302021-03-31
Value0.01.9
Percentage of ProceedsFromContributionsFromAffiliates0.0100.0

us-gaap:ProceedsFromContributionsFromAffiliates dei:LegalEntity

ess:EssexPortfolioL.P.


Proceeds
Period End2021-06-302021-03-31
Value0.01.9
Percentage of ProceedsFromContributionsFromAffiliates0.0100.0

us-gaap:ProceedsFromEquityMethodInvestmentDividendsOrDistributionsReturnOfCapital

us-gaap:ProceedsFromEquityMethodInvestmentDividendsOrDistributionsReturnOfCapital


Proceeds
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-30
Value0.0783412187.0203431610.02123362.3349441255410.013210.00.382-11.0721111314
Percentage of ProceedsFromEquityMethodInvestmentDividendsOrDistributionsReturnOfCapital0.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.0100.00.0100.0100.0100.0100.0100.0

us-gaap:ProceedsFromEquityMethodInvestmentDividendsOrDistributionsReturnOfCapital dei:LegalEntity

ess:EssexPortfolioL.P.


Proceeds
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-30
Value0.0783412187.0203431610.02123362.334944
Percentage of ProceedsFromEquityMethodInvestmentDividendsOrDistributionsReturnOfCapital0.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ProceedsFromInsuranceSettlementInvestingActivities

us-gaap:ProceedsFromInsuranceSettlementInvestingActivities


Proceeds
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-31
Value0.0150.1020.1110.0440.1110.4570.1350.9011.1151.5830.1710.320.3520.5650.00.2130.00.4352.2552.0770.7760.4354.7670.3097.1464.5896.3871910.00.00.0
Percentage of ProceedsFromInsuranceSettlementInvestingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.00.0

us-gaap:ProceedsFromInsuranceSettlementInvestingActivities dei:LegalEntity

ess:EssexPortfolioL.P.


Proceeds
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-30
Value0.0150.1020.1110.0440.1110.4570.1350.9011.1151.5830.1710.320.3520.5650.00.213
Percentage of ProceedsFromInsuranceSettlementInvestingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.0

us-gaap:ProceedsFromIssuanceOfCommonStock

us-gaap:ProceedsFromIssuanceOfCommonStock


Proceeds
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value-0.068-0.095-0.063-0.07-0.0172-0.062-0.02-0.436-0.13-0.286-0.0678.7-0.16580-0.065-0.002-0.103-0.145-0.13424359817481171121157150.00.0122889713931668813038134534517
Percentage of ProceedsFromIssuanceOfCommonStock100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ProceedsFromIssuanceOfCommonStock dei:LegalEntity

ess:EssexPortfolioL.P.


Proceeds
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-30
Value-0.068-0.095-0.063-0.07-0.0172-0.062-0.02-0.436-0.13-0.286-0.0678.678-0.188
Percentage of ProceedsFromIssuanceOfCommonStock100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.099.7113.9

us-gaap:ProceedsFromLinesOfCredit

us-gaap:ProceedsFromLinesOfCredit


Proceeds
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-31
Value2482040.00.00.01038454509408567288151812564179762404274
Percentage of ProceedsFromLinesOfCredit100.0100.00.00.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ProceedsFromLinesOfCredit dei:LegalEntity

ess:EssexPortfolioL.P.


Proceeds
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-30
Value2482040.00.00.010384545094085672881518125641797
Percentage of ProceedsFromLinesOfCredit100.0100.00.00.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ProceedsFromSaleAndCollectionOfReceivables

us-gaap:ProceedsFromSaleAndCollectionOfReceivables


Proceeds
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value0.00.00.0981660.00.02.50.00.00.029550.00.00.00.00.00.00.00.01921350.00.00.965526.5481.403-0.597.1640.2410.2750.1840.1840.0230.0061.6770.149
Percentage of ProceedsFromSaleAndCollectionOfReceivables0.00.00.0100.0100.00.00.0100.00.00.00.0100.0100.00.00.00.00.00.00.00.00.0100.0100.0100.00.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ProceedsFromSaleAndCollectionOfReceivables dei:LegalEntity

ess:EssexPortfolioL.P.


Proceeds
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-30
Value0.00.00.0981660.00.02.50.00.00.029550.0
Percentage of ProceedsFromSaleAndCollectionOfReceivables0.00.00.0100.0100.00.00.0100.00.00.00.0100.0100.00.0

us-gaap:ProceedsFromSaleAndMaturityOfMarketableSecurities

us-gaap:ProceedsFromSaleAndMaturityOfMarketableSecurities


Proceeds
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value0.11456524.10.2907.033169.03.59.49.62.14.63.924
Percentage of ProceedsFromSaleAndMaturityOfMarketableSecurities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ProceedsFromSaleOfEquityMethodInvestments us-gaap:ScheduleOfEquityMethodInvestmentEquityMethodInvesteeName

us-gaap:ProceedsFromSaleOfEquityMethodInvestments

ess:JointVentureThatHoldsPropertyInLosAngelesCalifornia


Proceeds
Period End2020-12-312020-03-31
Value1011
Percentage of ProceedsFromSaleOfEquityMethodInvestments100.0100.0

ess:JointVentureThatHoldsPropertyInSouthernCalifornia


Proceeds
Period End2021-03-31
Value110
Percentage of ProceedsFromSaleOfEquityMethodInvestments0.0

ess:PreferredEquityInvestmentPropertyInSouthernCalifornia


Proceeds
Period End2021-03-312020-12-312020-09-302020-02-29
Value10.0311013
Percentage of ProceedsFromSaleOfEquityMethodInvestments0.0292.50.00.0

us-gaap:ProceedsFromSaleOfRealEstateHeldforinvestment

us-gaap:ProceedsFromSaleOfRealEstateHeldforinvestment


Proceeds
Period End2021-06-302021-03-312020-12-312020-09-302019-12-312019-09-302018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-30
Value0.02435849230.02160.01300.00.00.8090.01311910.00.0482440.00.07479470.01431240.09.0510.00.010167.0310.0150.00.00.0
Percentage of ProceedsFromSaleOfRealEstateHeldforinvestment0.0100.0100.0100.0100.00.0100.00.0100.00.00.0100.00.0100.0100.00.00.0100.0100.00.00.0100.0100.0100.00.0100.0100.0100.00.0100.00.00.0100.0100.0100.00.0100.00.00.00.0

us-gaap:ProceedsFromSaleOfRealEstateHeldforinvestment dei:LegalEntity

ess:EssexPortfolioL.P.


Proceeds
Period End2021-06-302021-03-312020-12-312020-09-302019-12-312019-09-302018-12-312018-09-302017-12-312017-09-30
Value0.02435849230.02160.00.00.809
Percentage of ProceedsFromSaleOfRealEstateHeldforinvestment0.0100.0100.0100.0100.00.0100.00.00.0100.0

us-gaap:ProceedsFromStockOptionsExercised

us-gaap:ProceedsFromStockOptionsExercised


Proceeds
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value0.5741.7010.00.00.536141.045272.0446.6993.4620.8870.6421.2222.5562.038165.7941.0716.1186.5285.2324.3673.8272.733154.5131.0234.3271.1760.2020.5662.8231.3670.4740.7690.4670.9330.2720.7314.6221.3611.6570.8961.1181.094
Percentage of ProceedsFromStockOptionsExercised100.0100.00.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ProceedsFromStockOptionsExercised dei:LegalEntity

ess:EssexPortfolioL.P.


Proceeds
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-30
Value0.5741.7010.00.00.536141.045272.0446.6993.4620.8870.6421.2222.5562.038
Percentage of ProceedsFromStockOptionsExercised100.0100.00.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ProvisionForLoanLeaseAndOtherLosses

us-gaap:ProvisionForLoanLeaseAndOtherLosses


Provision
Period End2021-03-312020-12-312020-09-302020-06-302020-03-31
Value38000.0587000.03000.0147000.0-50000.0
Percentage of ProvisionForLoanLeaseAndOtherLosses100.0100.0100.0100.0100.0

us-gaap:ProvisionForLoanLeaseAndOtherLosses dei:LegalEntity

ess:EssexPortfolioL.P.


Provision
Period End2021-03-312020-12-312020-09-302020-06-302020-03-31
Value38000.0587000.03000.0147000.0-50000.0
Percentage of ProvisionForLoanLeaseAndOtherLosses100.0100.0100.0100.0100.0

us-gaap:ProvisionForLoanLeaseAndOtherLosses us-gaap:AccountsNotesLoansAndFinancingReceivableByReceivableType

ess:NotesReceivableBridgeLoan


Provision
Period End2021-03-312020-12-312020-09-302020-06-302020-03-31
Value-26000.000043000.0
Percentage of ProvisionForLoanLeaseAndOtherLosses-68.40.00.00.0-86.0

ess:NotesReceivableMezzanineAndBridgeLoans


Provision
Period End2021-03-312020-12-312020-09-302020-06-302020-03-31
Value-125000.0-579000.0-72000.0-34000.0124000.0
Percentage of ProvisionForLoanLeaseAndOtherLosses-328.9-98.6-2400.0-23.1-248.0

ess:NotesReceivableMezzanineLoans


Provision
Period End2021-03-312020-12-312020-09-302020-06-302020-03-31
Value-99000.0-579000.0-72000.0-34000.081000.0
Percentage of ProvisionForLoanLeaseAndOtherLosses-260.5-98.6-2400.0-23.1-162.0

us-gaap:RealEstateTaxExpense

us-gaap:RealEstateTaxExpense


Real
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value44454444444340393639393835373837343534353434303332313031301514141414131211111111101010109.7169.528
Percentage of RealEstateTaxExpense100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:RealEstateTaxExpense dei:LegalEntity

ess:EssexPortfolioL.P.


Real
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-30
Value4445444444434039363939383537383734
Percentage of RealEstateTaxExpense100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTax dei:LegalEntity, us-gaap:PartnerCapitalComponents

us-gaap:ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTax

ess:EssexPortfolioL.P., us-gaap:AccumulatedGainLossNetCashFlowHedgeParent


Reclassification
Period End2020-09-302020-06-302020-03-312019-09-30
Value1409000.02416000.01353000.01941000.0
Percentage of ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTax100.0100.0100.0100.0

ess:EssexPortfolioL.P., us-gaap:AccumulatedOtherComprehensiveIncome


Reclassification
Period End2020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-30
Value1409000.02416000.01353000.01941000.02019000.01932000.02000000.0
Percentage of ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTax100.0100.0100.0100.00.00.00.0

us-gaap:ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTax dei:LegalEntity, us-gaap:StatementEquityComponents

ess:EssexPortfolioL.P., us-gaap:AccumulatedGainLossNetCashFlowHedgeParent


Reclassification
Period End2021-06-302021-03-31
Value-5000.0-2000.0
Percentage of ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTax0.00.0

ess:EssexPortfolioL.P., us-gaap:AccumulatedOtherComprehensiveIncome


Reclassification
Period End2021-06-302021-03-31
Value-5000.0-2000.0
Percentage of ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTax0.00.0

us-gaap:ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTax us-gaap:StatementEquityComponents

us-gaap:AccumulatedGainLossNetCashFlowHedgeParent


Reclassification
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-30
Value-5000.0-2000.01362000.02333000.01308000.01875000.0
Percentage of ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTax0.00.096.796.696.796.6

us-gaap:AccumulatedOtherComprehensiveIncome


Reclassification
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302017-06-302017-03-31
Value-5000.0-2000.01362000.02333000.01308000.01875000.01951000.01867000.01933000.01940000.01986000.02412000.02006000.03530000.0
Percentage of ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTax0.00.096.796.696.796.60.00.00.00.00.00.00.00.0

us-gaap:RepaymentsOfDebt us-gaap:InvestmentType

us-gaap:RepaymentsOfDebt

ess:HiddenValleySimiValleyCA


Repayments
Period End2021-02-28
Value29
Percentage of RepaymentsOfDebt100.0

us-gaap:RepaymentsOfDebt us-gaap:ScheduleOfEquityMethodInvestmentEquityMethodInvesteeName, us-gaap:InvestmentType

ess:JointVenturePartnerBEXIII, ess:TheVillageAtTolucaLake


Repayments
Period End2021-06-30
Value29
Percentage of RepaymentsOfDebt0.0

us-gaap:RepaymentsOfLinesOfCredit

us-gaap:RepaymentsOfLinesOfCredit


Repayments
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-31
Value1632040.00.03507436194062915672881817943524194238353149
Percentage of RepaymentsOfLinesOfCredit100.0100.00.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:RepaymentsOfLinesOfCredit dei:LegalEntity

ess:EssexPortfolioL.P.


Repayments
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-30
Value1632040.00.03507436194062915672881817943524194
Percentage of RepaymentsOfLinesOfCredit100.0100.00.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:RepaymentsOfUnsecuredDebt us-gaap:LongtermDebtType, us-gaap:SubsequentEventType

us-gaap:RepaymentsOfUnsecuredDebt

ess:UnsecuredBonds430, us-gaap:SubsequentEvent


Repayments
Period End2021-02-28
Value100
Percentage of RepaymentsOfUnsecuredDebt100.0

us-gaap:SalesCommissionsAndFees us-gaap:CounterpartyName, us-gaap:RelatedPartyTransactionsByRelatedParty

us-gaap:SalesCommissionsAndFees

ess:MarcusandMillichapCompany, srt:BoardOfDirectorsChairman


Sales
Period End2020-09-302020-06-302020-03-31
Value00200000.0
Percentage of SalesCommissionsAndFees0.00.0100.0

us-gaap:StockRepurchasedDuringPeriodValue us-gaap:StatementEquityComponents

us-gaap:StockRepurchasedDuringPeriodValue

us-gaap:CommonStock


Stock
Period End2021-03-312020-09-302020-06-302020-03-31
Value9.22620176
Percentage of StockRepurchasedDuringPeriodValue100.0100.0100.0100.0

us-gaap:StraightLineRent

us-gaap:StraightLineRent


Straight
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-31
Value-2.738-3.0873.941122.5950.2080.988
Percentage of StraightLineRent100.0100.0100.0100.0100.0100.0100.0

us-gaap:StraightLineRent dei:LegalEntity

ess:EssexPortfolioL.P.


Straight
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-31
Value-2.738-3.0873.941122.5950.2080.988
Percentage of StraightLineRent100.0100.0100.0100.0100.0100.0100.0

us-gaap:TreasuryStockRetiredParValueMethodAmount

us-gaap:TreasuryStockRetiredParValueMethodAmount


Treasury
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-31
Value0.09.17226201760.00.0560.00.03.774
Percentage of TreasuryStockRetiredParValueMethodAmount0.0100.0100.0100.0100.00.00.0100.00.00.0100.0

us-gaap:TreasuryStockRetiredParValueMethodAmount dei:LegalEntity

ess:EssexPortfolioL.P.


Treasury
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-31
Value0.09.17226201760.00.0560.00.03.774
Percentage of TreasuryStockRetiredParValueMethodAmount0.0100.0100.0100.0100.00.00.0100.00.00.0100.0

us-gaap:TreasuryStockRetiredParValueMethodAmount dei:LegalEntity, us-gaap:PartnerCapitalComponents, us-gaap:PartnerTypeOfPartnersCapitalAccount

ess:EssexPortfolioL.P., ess:CommonEquity, us-gaap:GeneralPartner


Treasury
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-31
Value0.09.17226201760.00.0560.00.03.774
Percentage of TreasuryStockRetiredParValueMethodAmount0.0100.0100.0100.0100.00.00.0100.00.00.0100.0

us-gaap:TreasuryStockRetiredParValueMethodAmount us-gaap:StatementEquityComponents

us-gaap:AdditionalPaidInCapital