$ESS
ESSEX PROPERTY TRUST, INC. Stock $ess

$ess Overview Financials Valuation SEC Filings Company Website

2019 Q4 Form 10-K Financial Statement

#000092052220000026 Filed on February 20, 2020

Income Statement

Concept	2019 Q4	2019 Q3	2019 Q2
Revenue	$375.4M	$366.9M	$361.6M
YoY Change	6.29%	4.56%	3.7%
Cost Of Revenue	$101.5M	$102.5M	$95.40M
YoY Change	3.05%	4.81%	1.38%
Gross Profit	$273.9M	$264.5M	$266.2M
YoY Change	7.54%	4.5%	4.56%
Gross Profit Margin	72.96%	72.08%	73.61%
Selling, General & Admin	$23.80M	$19.60M	$22.10M
YoY Change	-3.64%	6.52%	16.93%
% of Gross Profit	8.69%	7.41%	8.3%
Research & Development
YoY Change
% of Gross Profit
Depreciation & Amortization	$123.0M	$120.8M	$119.5M
YoY Change	1.99%	-0.04%	0.11%
% of Gross Profit	44.91%	45.67%	44.88%
Operating Expenses	$146.7M	$140.4M	$141.6M
YoY Change	1.03%	0.86%	2.39%
Operating Profit	$127.2M	$124.0M	$124.6M
YoY Change	16.16%	8.9%	-10.08%
Interest Expense	$21.80M	$54.90M	$54.11M
YoY Change	-184.5%	-0.54%	-3.85%
% of Operating Profit	17.14%	44.26%	43.44%
Other Income/Expense, Net	$0.00	-$1.500M
YoY Change
Pretax Income	$135.2M	$105.7M	$98.10M
YoY Change	8.68%	22.76%	-7.8%
Income Tax
% Of Pretax Income
Net Earnings	$135.2M	$105.7M	$98.06M
YoY Change	8.63%	22.75%	-7.85%
Net Earnings / Revenue	36.01%	28.81%	27.12%
Basic Earnings Per Share	$1.95	$1.51	$1.40
Diluted Earnings Per Share	$1.95	$1.51	$1.40
COMMON SHARES
Basic Shares Outstanding	66.08M shares	65.85M shares	65.72M shares
Diluted Shares Outstanding		65.97M shares	65.82M shares

Balance Sheet

Concept	2019 Q4	2019 Q3	2019 Q2
SHORT-TERM ASSETS
Cash & Short-Term Investments	$214.3M	$290.9M	$253.6M
YoY Change	-37.71%	-20.92%	-31.1%
Cash & Equivalents	$70.09M	$74.03M	$38.17M
Short-Term Investments	$144.2M	$216.9M	$215.4M
Other Short-Term Assets	$41.00M	$42.00M	$46.00M
YoY Change	5.13%	-17.65%	-17.86%
Inventory	$546.0M	$562.0M	$542.0M
Prepaid Expenses
Receivables
Other Receivables
Total Short-Term Assets	$672.0M	$691.0M	$639.0M
YoY Change	4.84%	11.09%	11.71%
LONG-TERM ASSETS
Property, Plant & Equipment	$10.42B	$10.46B	$10.42B
YoY Change	2.62%	1.09%	0.04%
Goodwill
YoY Change
Intangibles
YoY Change
Long-Term Investments	$1.480B	$1.631B	$1.540B
YoY Change	-1.99%	10.35%	2.74%
Other Assets	$11.00M	$18.00M	$17.00M
YoY Change	-35.29%	5.88%	0.0%
Total Long-Term Assets	$12.03B	$12.31B	$12.03B
YoY Change	2.48%	3.45%	0.4%
TOTAL ASSETS
Total Short-Term Assets	$672.0M	$691.0M	$639.0M
Total Long-Term Assets	$12.03B	$12.31B	$12.03B
Total Assets	$12.71B	$13.00B	$12.67B
YoY Change	2.6%	3.83%	0.92%
SHORT-TERM LIABILITIES
YoY Change
Accounts Payable	$158.0M	$193.0M	$140.0M
YoY Change	24.41%	4.32%	5.26%
Accrued Expenses	$77.00M	$77.00M	$78.00M
YoY Change
Deferred Revenue
YoY Change
Short-Term Debt	$0.00	$0.00	$0.00
YoY Change
Long-Term Debt Due
YoY Change
Total Short-Term Liabilities	$419.0M	$459.0M	$412.0M
YoY Change	33.02%	21.43%	28.75%
LONG-TERM LIABILITIES
Long-Term Debt	$5.809B	$6.048B	$5.841B
YoY Change	3.62%	7.35%	2.64%
Other Long-Term Liabilities	$37.00M	$36.00M	$35.00M
YoY Change	12.12%	5.88%	6.06%
Total Long-Term Liabilities	$5.846B	$6.084B	$5.876B
YoY Change	3.67%	7.34%	2.66%
TOTAL LIABILITIES
Total Short-Term Liabilities	$419.0M	$459.0M	$412.0M
Total Long-Term Liabilities	$5.846B	$6.084B	$5.876B
Total Liabilities	$6.264B	$6.544B	$6.289B
YoY Change	5.21%	8.24%	4.04%
SHAREHOLDERS EQUITY
Retained Earnings
YoY Change
Common Stock	$7.000K	$7.000K	$7.000K
YoY Change	0.0%	0.0%	0.0%
Preferred Stock
YoY Change
Treasury Stock (at cost)
YoY Change
Treasury Stock Shares
Shareholders Equity	$6.220B	$6.225B	$6.155B
YoY Change
Total Liabilities & Shareholders Equity	$12.71B	$13.00B	$12.67B
YoY Change	2.6%	3.83%	0.92%

Cashflow Statement

Concept	2019 Q4	2019 Q3	2019 Q2
OPERATING ACTIVITIES
Net Income	$135.2M	$105.7M	$98.06M
YoY Change	8.63%	22.75%	-7.85%
Depreciation, Depletion And Amortization	$123.0M	$120.8M	$119.5M
YoY Change	1.99%	-0.04%	0.11%
Cash From Operating Activities	$212.2M	$277.1M	$174.0M
YoY Change	45.84%	7.57%	12.19%
INVESTING ACTIVITIES
Capital Expenditures	-$115.6M	-$142.0M	-$90.90M
YoY Change	11.58%	40.59%	19.13%
Acquisitions
YoY Change
Other Investing Activities	$292.3M	-$230.9M	-$21.30M
YoY Change	62.84%	-1054.13%	-118.31%
Cash From Investing Activities	$176.6M	-$372.8M	-$112.3M
YoY Change	132.67%	385.42%	-380.75%
FINANCING ACTIVITIES
Cash Dividend Paid
YoY Change
Common Stock Issuance & Retirement, Net
YoY Change
Debt Paid & Issued, Net
YoY Change
Cash From Financing Activities	-399.4M	132.5M	-131.0M
YoY Change	63.29%	-172.13%	-16.4%
NET CHANGE
Cash From Operating Activities	212.2M	277.1M	174.0M
Cash From Investing Activities	176.6M	-372.8M	-112.3M
Cash From Financing Activities	-399.4M	132.5M	-131.0M
Net Change In Cash	-10.60M	36.80M	-69.30M
YoY Change	-54.31%	-1368.97%	-280.47%
FREE CASH FLOW
Cash From Operating Activities	$212.2M	$277.1M	$174.0M
Capital Expenditures	-$115.6M	-$142.0M	-$90.90M
Free Cash Flow	$327.8M	$419.1M	$264.9M
YoY Change	31.59%	16.87%	14.48%

Facts In Submission

Frame	Concept Type	Concept / XBRL Key	Value	Unit
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CY2019	dei	Current Fiscal Year End Date CurrentFiscalYearEndDate	--12-31
CY2019	dei	Document Fiscal Period Focus DocumentFiscalPeriodFocus	FY
CY2019	dei	Document Fiscal Year Focus DocumentFiscalYearFocus	2019
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CY2018	ess	Sharebased Compensation Arrangementby Sharebased Payment Award Cap On Appreciationof The Market Price Over The Exercise Price Option2 SharebasedCompensationArrangementbySharebasedPaymentAwardCapOnAppreciationofTheMarketPriceOverTheExercisePriceOption2	125	USD
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CY2019	dei	Document Type DocumentType	10-K
CY2019	dei	Document Annual Report DocumentAnnualReport	true
CY2019	dei	Document Period End Date DocumentPeriodEndDate	2019-12-31
CY2019	dei	Document Transition Report DocumentTransitionReport	false
CY2019	dei	Entity File Number EntityFileNumber	001-13106
CY2019	dei	Entity Registrant Name EntityRegistrantName	ESSEX PROPERTY TRUST, INC.
CY2019	dei	Entity Incorporation State Country Code EntityIncorporationStateCountryCode	MD
CY2019	dei	Entity Tax Identification Number EntityTaxIdentificationNumber	77-0369576
CY2019	dei	Entity Address Address Line1 EntityAddressAddressLine1	1100 Park Place, Suite 200
CY2019	dei	Entity Address City Or Town EntityAddressCityOrTown	San Mateo
CY2019	dei	Entity Address State Or Province EntityAddressStateOrProvince	CA
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CY2019	dei	City Area Code CityAreaCode	650
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CY2019	dei	Security12b Title Security12bTitle	Common Stock, $.0001 par value (Essex Property Trust, Inc.)
CY2019	dei	Trading Symbol TradingSymbol	ESS
CY2019	dei	Security Exchange Name SecurityExchangeName	NYSE
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CY2019	ess	Gain On Remeasurement Of Co Investment GainOnRemeasurementOfCoInvestment	31535000	USD
CY2018	ess	Gain On Remeasurement Of Co Investment GainOnRemeasurementOfCoInvestment	1253000	USD
CY2017	ess	Gain On Remeasurement Of Co Investment GainOnRemeasurementOfCoInvestment	88641000	USD
CY2019	us-gaap	Profit Loss ProfitLoss	464448000	USD
CY2018	us-gaap	Profit Loss ProfitLoss	413599000	USD
CY2017	us-gaap	Profit Loss ProfitLoss	458043000	USD
CY2019	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	25162000	USD
CY2017	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	24984000	USD
CY2019	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	439286000	USD
CY2017	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	433059000	USD
CY2019	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	6.67
CY2018	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	5.91
CY2017	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	6.58
CY2019	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	65840422	shares
CY2018	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	66041058	shares
CY2017	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	65829155	shares
CY2019	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	6.66
CY2018	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	5.90
CY2017	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	6.57
CY2019	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	65939455	shares
CY2018	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	66085089	shares
CY2017	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	65898255	shares
CY2019	us-gaap	Profit Loss ProfitLoss	464448000	USD
CY2018	us-gaap	Profit Loss ProfitLoss	413599000	USD
CY2017	us-gaap	Profit Loss ProfitLoss	458043000	USD
CY2019	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss After Reclassification And Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationAndTax	-2948000	USD
CY2018	us-gaap	Other Comprehensive Income Loss Derivatives Qualifying As Hedges Net Of Tax OtherComprehensiveIncomeLossDerivativesQualifyingAsHedgesNetOfTax	7824000	USD
CY2017	us-gaap	Other Comprehensive Income Loss Derivatives Qualifying As Hedges Net Of Tax OtherComprehensiveIncomeLossDerivativesQualifyingAsHedgesNetOfTax	12744000	USD
CY2019	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss Reclassification After Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossReclassificationAfterTax	-1824000	USD
CY2018	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss Reclassification After Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossReclassificationAfterTax	0	USD
CY2017	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss Reclassification After Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossReclassificationAfterTax	0	USD
CY2019	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax	281000	USD
CY2018	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax	-118000	USD
CY2017	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax	3284000	USD
CY2019	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Net Of Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesNetOfTax	32000	USD
CY2018	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Net Of Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesNetOfTax	-13000	USD
CY2017	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Net Of Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesNetOfTax	1909000	USD
CY2019	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	-875000	USD
CY2018	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	7719000	USD
CY2017	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	14119000	USD
CY2019	us-gaap	Comprehensive Income Net Of Tax Including Portion Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest	463573000	USD
CY2018	us-gaap	Comprehensive Income Net Of Tax Including Portion Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest	421318000	USD
CY2017	us-gaap	Comprehensive Income Net Of Tax Including Portion Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest	472162000	USD
CY2019	us-gaap	Comprehensive Income Net Of Tax Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest	25133000	USD
CY2018	us-gaap	Comprehensive Income Net Of Tax Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest	23702000	USD
CY2017	us-gaap	Comprehensive Income Net Of Tax Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest	25451000	USD
CY2019	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	438440000	USD
CY2018	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	397616000	USD
CY2017	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	446711000	USD
CY2016Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	6292237000	USD
CY2017	us-gaap	Profit Loss ProfitLoss	458043000	USD
CY2017	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Net Of Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesNetOfTax	1909000	USD
CY2017	us-gaap	Other Comprehensive Income Loss Derivatives Qualifying As Hedges Net Of Tax OtherComprehensiveIncomeLossDerivativesQualifyingAsHedgesNetOfTax	12744000	USD
CY2017	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax	3284000	USD
CY2017	ess	Stock Option And Restricted Stock Plans StockOptionAndRestrictedStockPlans	26635000	USD
CY2017	us-gaap	Stock Issued During Period Value New Issues StockIssuedDuringPeriodValueNewIssues	89055000	USD
CY2017	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	11302000	USD
CY2017	us-gaap	Minority Interest Change In Redemption Value MinorityInterestChangeInRedemptionValue	-65000	USD
CY2017	us-gaap	Noncontrolling Interest Increase From Sale Of Parent Equity Interest NoncontrollingInterestIncreaseFromSaleOfParentEquityInterest	22506000	USD
CY2017	us-gaap	Minority Interest Decrease From Distributions To Noncontrolling Interest Holders MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders	27051000	USD
CY2017	ess	Redemptions Of Noncontrolling Interest RedemptionsOfNoncontrollingInterest	28580000	USD
CY2017	us-gaap	Dividends Common Stock DividendsCommonStock	461376000	USD
CY2017Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	6396825000	USD
CY2018	us-gaap	Profit Loss ProfitLoss	413599000	USD
CY2018	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Net Of Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesNetOfTax	-13000	USD
CY2018	us-gaap	Other Comprehensive Income Loss Derivatives Qualifying As Hedges Net Of Tax OtherComprehensiveIncomeLossDerivativesQualifyingAsHedgesNetOfTax	7824000	USD
CY2018	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax	-118000	USD
CY2018	ess	Stock Option And Restricted Stock Plans StockOptionAndRestrictedStockPlans	6213000	USD
CY2018	us-gaap	Stock Issued During Period Value New Issues StockIssuedDuringPeriodValueNewIssues	-919000	USD
CY2018	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	12851000	USD
CY2018	us-gaap	Stock Repurchased And Retired During Period Value StockRepurchasedAndRetiredDuringPeriodValue	51233000	USD
CY2018	us-gaap	Minority Interest Change In Redemption Value MinorityInterestChangeInRedemptionValue	-1164000	USD
CY2018	us-gaap	Noncontrolling Interest Increase From Sale Of Parent Equity Interest NoncontrollingInterestIncreaseFromSaleOfParentEquityInterest	7919000	USD
CY2018	us-gaap	Minority Interest Decrease From Distributions To Noncontrolling Interest Holders MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders	29233000	USD
CY2019	us-gaap	Minority Interest Decrease From Distributions To Noncontrolling Interest Holders MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders	28493000	USD
CY2018	ess	Redemptions Of Noncontrolling Interest RedemptionsOfNoncontrollingInterest	1333000	USD
CY2018	us-gaap	Dividends Common Stock DividendsCommonStock	491108000	USD
CY2018Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	6393844000	USD
CY2019	us-gaap	Profit Loss ProfitLoss	464448000	USD
CY2019	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Net Of Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesNetOfTax	32000	USD
CY2019	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss Reclassification After Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossReclassificationAfterTax	-1824000	USD
CY2019	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss After Reclassification And Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationAndTax	-2948000	USD
CY2019	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax	281000	USD
CY2019	ess	Stock Option And Restricted Stock Plans StockOptionAndRestrictedStockPlans	33779000	USD
CY2019	us-gaap	Stock Issued During Period Value New Issues StockIssuedDuringPeriodValueNewIssues	72539000	USD
CY2019	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	12283000	USD
CY2019	us-gaap	Stock Repurchased And Retired During Period Value StockRepurchasedAndRetiredDuringPeriodValue	56989000	USD
CY2019	us-gaap	Minority Interest Change In Redemption Value MinorityInterestChangeInRedemptionValue	-2008000	USD
CY2019	us-gaap	Noncontrolling Interest Increase From Sale Of Parent Equity Interest NoncontrollingInterestIncreaseFromSaleOfParentEquityInterest	65472000	USD
CY2019	ess	Redemptions Of Noncontrolling Interest RedemptionsOfNoncontrollingInterest	36568000	USD
CY2019	us-gaap	Dividends Common Stock DividendsCommonStock	514109000	USD
CY2019Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	6403504000	USD
CY2019	us-gaap	Profit Loss ProfitLoss	464448000	USD
CY2018	us-gaap	Profit Loss ProfitLoss	413599000	USD
CY2017	us-gaap	Profit Loss ProfitLoss	458043000	USD
CY2019	us-gaap	Depreciation And Amortization DepreciationAndAmortization	483750000	USD
CY2018	us-gaap	Depreciation And Amortization DepreciationAndAmortization	479884000	USD
CY2017	us-gaap	Depreciation And Amortization DepreciationAndAmortization	468881000	USD
CY2019	us-gaap	Investment Income Amortization Of Discount InvestmentIncomeAmortizationOfDiscount	28491000	USD
CY2018	us-gaap	Investment Income Amortization Of Discount InvestmentIncomeAmortizationOfDiscount	17637000	USD
CY2017	us-gaap	Investment Income Amortization Of Discount InvestmentIncomeAmortizationOfDiscount	15119000	USD
CY2019	us-gaap	Amortization Of Debt Discount Premium AmortizationOfDebtDiscountPremium	5689000	USD
CY2018	us-gaap	Amortization Of Debt Discount Premium AmortizationOfDebtDiscountPremium	-2587000	USD
CY2017	us-gaap	Amortization Of Debt Discount Premium AmortizationOfDebtDiscountPremium	-5948000	USD
CY2019	us-gaap	Gain Loss On Sale Of Investments GainLossOnSaleOfInvestments	1271000	USD
CY2018	us-gaap	Gain Loss On Sale Of Investments GainLossOnSaleOfInvestments	737000	USD
CY2017	us-gaap	Gain Loss On Sale Of Investments GainLossOnSaleOfInvestments	1909000	USD
CY2019	us-gaap	Equity Securities Fv Ni Unrealized Gain Loss EquitySecuritiesFvNiUnrealizedGainLoss	5710000	USD
CY2018	us-gaap	Equity Securities Fv Ni Unrealized Gain Loss EquitySecuritiesFvNiUnrealizedGainLoss	-5159000	USD
CY2017	us-gaap	Equity Securities Fv Ni Unrealized Gain Loss EquitySecuritiesFvNiUnrealizedGainLoss	0	USD
CY2019	us-gaap	Equity Method Investment Realized Gain Loss On Disposal EquityMethodInvestmentRealizedGainLossOnDisposal	51097000	USD
CY2018	us-gaap	Equity Method Investment Realized Gain Loss On Disposal EquityMethodInvestmentRealizedGainLossOnDisposal	10569000	USD
CY2017	us-gaap	Equity Method Investment Realized Gain Loss On Disposal EquityMethodInvestmentRealizedGainLossOnDisposal	44837000	USD
CY2019	ess	Gain Loss From Equity Method Investments GainLossFromEquityMethodInvestments	61039000	USD
CY2018	ess	Gain Loss From Equity Method Investments GainLossFromEquityMethodInvestments	78563000	USD
CY2018	us-gaap	Share Based Compensation ShareBasedCompensation	7135000	USD
CY2017	ess	Gain Loss From Equity Method Investments GainLossFromEquityMethodInvestments	41608000	USD
CY2019	us-gaap	Equity Method Investment Dividends Or Distributions EquityMethodInvestmentDividendsOrDistributions	99277000	USD
CY2018	us-gaap	Equity Method Investment Dividends Or Distributions EquityMethodInvestmentDividendsOrDistributions	99593000	USD
CY2017	us-gaap	Equity Method Investment Dividends Or Distributions EquityMethodInvestmentDividendsOrDistributions	76764000	USD
CY2019	us-gaap	Increase Decrease In Other Receivables IncreaseDecreaseInOtherReceivables	6012000	USD
CY2018	us-gaap	Increase Decrease In Other Receivables IncreaseDecreaseInOtherReceivables	5436000	USD
CY2017	us-gaap	Increase Decrease In Other Receivables IncreaseDecreaseInOtherReceivables	4030000	USD
CY2019	us-gaap	Asset Impairment Charges AssetImpairmentCharges	7105000	USD
CY2018	us-gaap	Asset Impairment Charges AssetImpairmentCharges	0	USD
CY2017	us-gaap	Asset Impairment Charges AssetImpairmentCharges	0	USD
CY2019	ess	Companys Share Of Gain On Sales Of Real Estate CompanysShareOfGainOnSalesOfRealEstate	-3164000	USD
CY2018	ess	Companys Share Of Gain On Sales Of Real Estate CompanysShareOfGainOnSalesOfRealEstate	61861000	USD
CY2017	ess	Companys Share Of Gain On Sales Of Real Estate CompanysShareOfGainOnSalesOfRealEstate	26423000	USD
CY2019	us-gaap	Share Based Compensation ShareBasedCompensation	7010000	USD
CY2017	us-gaap	Share Based Compensation ShareBasedCompensation	9286000	USD
CY2019	us-gaap	Gains Losses On Extinguishment Of Debt GainsLossesOnExtinguishmentOfDebt	3717000	USD
CY2018	us-gaap	Gains Losses On Extinguishment Of Debt GainsLossesOnExtinguishmentOfDebt	0	USD
CY2017	us-gaap	Gains Losses On Extinguishment Of Debt GainsLossesOnExtinguishmentOfDebt	-1796000	USD
CY2019	ess	Gain On Remeasurement Of Co Investment GainOnRemeasurementOfCoInvestment	31535000	USD
CY2018	ess	Gain On Remeasurement Of Co Investment GainOnRemeasurementOfCoInvestment	1253000	USD
CY2017	ess	Gain On Remeasurement Of Co Investment GainOnRemeasurementOfCoInvestment	88641000	USD
CY2019	us-gaap	Increase Decrease In Prepaid Deferred Expense And Other Assets IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets	-5751000	USD
CY2018	us-gaap	Increase Decrease In Prepaid Deferred Expense And Other Assets IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets	1203000	USD
CY2017	us-gaap	Increase Decrease In Prepaid Deferred Expense And Other Assets IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets	3004000	USD
CY2019	us-gaap	Increase Decrease In Other Accounts Payable And Accrued Liabilities IncreaseDecreaseInOtherAccountsPayableAndAccruedLiabilities	29551000	USD
CY2018	us-gaap	Increase Decrease In Other Accounts Payable And Accrued Liabilities IncreaseDecreaseInOtherAccountsPayableAndAccruedLiabilities	-145000	USD
CY2017	us-gaap	Increase Decrease In Other Accounts Payable And Accrued Liabilities IncreaseDecreaseInOtherAccountsPayableAndAccruedLiabilities	-13474000	USD
CY2019	us-gaap	Increase Decrease In Other Operating Liabilities IncreaseDecreaseInOtherOperatingLiabilities	2206000	USD
CY2018	us-gaap	Increase Decrease In Other Operating Liabilities IncreaseDecreaseInOtherOperatingLiabilities	1175000	USD
CY2017	us-gaap	Increase Decrease In Other Operating Liabilities IncreaseDecreaseInOtherOperatingLiabilities	-170000	USD
CY2019	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	919079000	USD
CY2018	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	826554000	USD
CY2017	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	769607000	USD
CY2019	us-gaap	Payments To Acquire Real Estate PaymentsToAcquireRealEstate	133825000	USD
CY2018	us-gaap	Payments To Acquire Real Estate PaymentsToAcquireRealEstate	15311000	USD
CY2017	us-gaap	Payments To Acquire Real Estate PaymentsToAcquireRealEstate	206194000	USD
CY2019	ess	Redevelopment Expenditures RedevelopmentExpenditures	70295000	USD
CY2018	ess	Redevelopment Expenditures RedevelopmentExpenditures	73000000	USD
CY2017	ess	Redevelopment Expenditures RedevelopmentExpenditures	69928000	USD
CY2017	us-gaap	Payments To Acquire Notes Receivable PaymentsToAcquireNotesReceivable	106461000	USD
CY2019	us-gaap	Proceeds From Sale And Collection Of Receivables ProceedsFromSaleAndCollectionOfReceivables	168720000	USD
CY2018	us-gaap	Proceeds From Sale And Collection Of Receivables ProceedsFromSaleAndCollectionOfReceivables	29500000	USD
CY2017	us-gaap	Proceeds From Insurance Settlement Investing Activities ProceedsFromInsuranceSettlementInvestingActivities	648000	USD
CY2019	us-gaap	Proceeds From Sale Of Real Estate Heldforinvestment ProceedsFromSaleOfRealEstateHeldforinvestment	23214000	USD
CY2017	us-gaap	Proceeds From Sale And Collection Of Receivables ProceedsFromSaleAndCollectionOfReceivables	55000000	USD
CY2019	us-gaap	Proceeds From Insurance Settlement Investing Activities ProceedsFromInsuranceSettlementInvestingActivities	3734000	USD
CY2018	us-gaap	Proceeds From Insurance Settlement Investing Activities ProceedsFromInsuranceSettlementInvestingActivities	1408000	USD
CY2019	us-gaap	Payments To Develop Real Estate Assets PaymentsToDevelopRealEstateAssets	158234000	USD
CY2018	us-gaap	Payments To Develop Real Estate Assets PaymentsToDevelopRealEstateAssets	182772000	USD
CY2017	us-gaap	Payments To Develop Real Estate Assets PaymentsToDevelopRealEstateAssets	137733000	USD
CY2019	ess	Revenue Generating Capital Expenditures RevenueGeneratingCapitalExpenditures	101689000	USD
CY2018	ess	Revenue Generating Capital Expenditures RevenueGeneratingCapitalExpenditures	81684000	USD
CY2017	ess	Revenue Generating Capital Expenditures RevenueGeneratingCapitalExpenditures	72812000	USD
CY2019	us-gaap	Payments To Acquire Notes Receivable PaymentsToAcquireNotesReceivable	231400000	USD
CY2018	us-gaap	Payments To Acquire Notes Receivable PaymentsToAcquireNotesReceivable	0	USD
CY2018	us-gaap	Proceeds From Sale Of Real Estate Heldforinvestment ProceedsFromSaleOfRealEstateHeldforinvestment	347587000	USD
CY2017	us-gaap	Proceeds From Sale Of Real Estate Heldforinvestment ProceedsFromSaleOfRealEstateHeldforinvestment	132039000	USD
CY2019	us-gaap	Payments To Acquire Equity Method Investments PaymentsToAcquireEquityMethodInvestments	402284000	USD
CY2018	us-gaap	Payments To Acquire Equity Method Investments PaymentsToAcquireEquityMethodInvestments	162437000	USD
CY2017	us-gaap	Payments To Acquire Equity Method Investments PaymentsToAcquireEquityMethodInvestments	293363000	USD
CY2019	us-gaap	Increase Decrease In Restricted Cash And Investments For Operating Activities IncreaseDecreaseInRestrictedCashAndInvestmentsForOperatingActivities	-5000	USD
CY2018	us-gaap	Increase Decrease In Restricted Cash And Investments For Operating Activities IncreaseDecreaseInRestrictedCashAndInvestmentsForOperatingActivities	414000	USD
CY2017	us-gaap	Increase Decrease In Restricted Cash And Investments For Operating Activities IncreaseDecreaseInRestrictedCashAndInvestmentsForOperatingActivities	-837000	USD
CY2019	us-gaap	Payments To Acquire Marketable Securities PaymentsToAcquireMarketableSecurities	46458000	USD
CY2018	us-gaap	Payments To Acquire Marketable Securities PaymentsToAcquireMarketableSecurities	37952000	USD
CY2017	us-gaap	Payments To Acquire Marketable Securities PaymentsToAcquireMarketableSecurities	67893000	USD
CY2019	ess	Payments For Proceeds From Sales And Maturities Of Marketable Securities PaymentsForProceedsFromSalesAndMaturitiesOfMarketableSecurities	-147531000	USD
CY2018	ess	Payments For Proceeds From Sales And Maturities Of Marketable Securities PaymentsForProceedsFromSalesAndMaturitiesOfMarketableSecurities	-31521000	USD
CY2017	ess	Payments For Proceeds From Sales And Maturities Of Marketable Securities PaymentsForProceedsFromSalesAndMaturitiesOfMarketableSecurities	-35481000	USD
CY2019	us-gaap	Proceeds From Equity Method Investment Dividends Or Distributions Return Of Capital ProceedsFromEquityMethodInvestmentDividendsOrDistributionsReturnOfCapital	273290000	USD
CY2018	us-gaap	Proceeds From Equity Method Investment Dividends Or Distributions Return Of Capital ProceedsFromEquityMethodInvestmentDividendsOrDistributionsReturnOfCapital	83661000	USD
CY2017	us-gaap	Proceeds From Equity Method Investment Dividends Or Distributions Return Of Capital ProceedsFromEquityMethodInvestmentDividendsOrDistributionsReturnOfCapital	162439000	USD
CY2019	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-527691000	USD
CY2018	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-59893000	USD
CY2017	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-567940000	USD
CY2019	us-gaap	Proceeds From Issuance Of Long Term Debt ProceedsFromIssuanceOfLongTermDebt	1045290000	USD
CY2018	us-gaap	Proceeds From Issuance Of Long Term Debt ProceedsFromIssuanceOfLongTermDebt	298773000	USD
CY2017	us-gaap	Proceeds From Issuance Of Long Term Debt ProceedsFromIssuanceOfLongTermDebt	597981000	USD
CY2019	us-gaap	Repayments Of Long Term Debt RepaymentsOfLongTermDebt	1026616000	USD
CY2018	us-gaap	Repayments Of Long Term Debt RepaymentsOfLongTermDebt	230398000	USD
CY2017	us-gaap	Repayments Of Long Term Debt RepaymentsOfLongTermDebt	561160000	USD
CY2019	us-gaap	Proceeds From Lines Of Credit ProceedsFromLinesOfCredit	1939213000	USD
CY2018	us-gaap	Proceeds From Lines Of Credit ProceedsFromLinesOfCredit	742961000	USD
CY2017	us-gaap	Proceeds From Lines Of Credit ProceedsFromLinesOfCredit	982246000	USD
CY2019	us-gaap	Repayments Of Lines Of Credit RepaymentsOfLinesOfCredit	1884213000	USD
CY2018	us-gaap	Repayments Of Lines Of Credit RepaymentsOfLinesOfCredit	921961000	USD
CY2017	us-gaap	Repayments Of Lines Of Credit RepaymentsOfLinesOfCredit	928246000	USD
CY2019	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	56989000	USD
CY2018	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	51233000	USD
CY2017	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	0	USD
CY2019	us-gaap	Payment Of Financing And Stock Issuance Costs PaymentOfFinancingAndStockIssuanceCosts	10898000	USD
CY2018	us-gaap	Payment Of Financing And Stock Issuance Costs PaymentOfFinancingAndStockIssuanceCosts	4250000	USD
CY2017	us-gaap	Payment Of Financing And Stock Issuance Costs PaymentOfFinancingAndStockIssuanceCosts	4108000	USD
CY2019	us-gaap	Payments Of Debt Extinguishment Costs PaymentsOfDebtExtinguishmentCosts	1406000	USD
CY2018	us-gaap	Payments Of Debt Extinguishment Costs PaymentsOfDebtExtinguishmentCosts	0	USD
CY2017	us-gaap	Payments Of Debt Extinguishment Costs PaymentsOfDebtExtinguishmentCosts	1630000	USD
CY2019	us-gaap	Proceeds From Issuance Of Common Stock ProceedsFromIssuanceOfCommonStock	72539000	USD
CY2018	us-gaap	Proceeds From Issuance Of Common Stock ProceedsFromIssuanceOfCommonStock	-919000	USD
CY2017	us-gaap	Proceeds From Issuance Of Common Stock ProceedsFromIssuanceOfCommonStock	89055000	USD
CY2019	us-gaap	Proceeds From Stock Options Exercised ProceedsFromStockOptionsExercised	37467000	USD
CY2018	us-gaap	Proceeds From Stock Options Exercised ProceedsFromStockOptionsExercised	6213000	USD
CY2017	us-gaap	Proceeds From Stock Options Exercised ProceedsFromStockOptionsExercised	26635000	USD
CY2019	us-gaap	Payments Related To Tax Withholding For Share Based Compensation PaymentsRelatedToTaxWithholdingForShareBasedCompensation	3688000	USD
CY2018	us-gaap	Payments Related To Tax Withholding For Share Based Compensation PaymentsRelatedToTaxWithholdingForShareBasedCompensation	869000	USD
CY2017	us-gaap	Payments Related To Tax Withholding For Share Based Compensation PaymentsRelatedToTaxWithholdingForShareBasedCompensation	316000	USD
CY2019	us-gaap	Payments Of Distributions To Affiliates PaymentsOfDistributionsToAffiliates	27993000	USD
CY2018	us-gaap	Payments Of Distributions To Affiliates PaymentsOfDistributionsToAffiliates	29050000	USD
CY2017	us-gaap	Payments Of Distributions To Affiliates PaymentsOfDistributionsToAffiliates	26552000	USD
CY2019	us-gaap	Payments To Minority Shareholders PaymentsToMinorityShareholders	36568000	USD
CY2018	us-gaap	Payments To Minority Shareholders PaymentsToMinorityShareholders	1333000	USD
CY2017	us-gaap	Payments To Minority Shareholders PaymentsToMinorityShareholders	28580000	USD
CY2019	us-gaap	Payments For Repurchase Of Redeemable Noncontrolling Interest PaymentsForRepurchaseOfRedeemableNoncontrollingInterest	73000	USD
CY2018	us-gaap	Payments For Repurchase Of Redeemable Noncontrolling Interest PaymentsForRepurchaseOfRedeemableNoncontrollingInterest	144000	USD
CY2017	us-gaap	Payments For Repurchase Of Redeemable Noncontrolling Interest PaymentsForRepurchaseOfRedeemableNoncontrollingInterest	5543000	USD
CY2019	us-gaap	Payments Of Ordinary Dividends PaymentsOfOrdinaryDividends	507754000	USD
CY2018	us-gaap	Payments Of Ordinary Dividends PaymentsOfOrdinaryDividends	484182000	USD
CY2017	us-gaap	Payments Of Ordinary Dividends PaymentsOfOrdinaryDividends	450625000	USD
CY2019	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-461689000	USD
CY2018	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-676392000	USD
CY2019	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Excluding Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseExcludingExchangeRateEffect	-70301000	USD
CY2017	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-310843000	USD
CY2017Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	61126000	USD
CY2019	us-gaap	Interest Paid Net InterestPaidNet	194418000	USD
CY2018	us-gaap	Interest Paid Net InterestPaidNet	203803000	USD
CY2017	us-gaap	Interest Paid Net InterestPaidNet	212163000	USD
CY2018	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Excluding Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseExcludingExchangeRateEffect	90269000	USD
CY2017	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Excluding Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseExcludingExchangeRateEffect	-109176000	USD
CY2018Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	151395000	USD
CY2017Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	61126000	USD
CY2016Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	170302000	USD
CY2019Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	81094000	USD
CY2018Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	151395000	USD
CY2019	us-gaap	Interest Paid Capitalized InterestPaidCapitalized	24169000	USD
CY2018	us-gaap	Interest Paid Capitalized InterestPaidCapitalized	18708000	USD
CY2017	us-gaap	Interest Paid Capitalized InterestPaidCapitalized	13860000	USD
CY2019	us-gaap	Operating Lease Payments OperatingLeasePayments	6811000	USD
CY2018	us-gaap	Operating Lease Payments OperatingLeasePayments	0	USD
CY2017	us-gaap	Operating Lease Payments OperatingLeasePayments	0	USD
CY2019	us-gaap	Proceeds From Minority Shareholders ProceedsFromMinorityShareholders	0	USD
CY2018	us-gaap	Proceeds From Minority Shareholders ProceedsFromMinorityShareholders	7919000	USD
CY2017	us-gaap	Proceeds From Minority Shareholders ProceedsFromMinorityShareholders	0	USD
CY2019	us-gaap	Stock Issued1 StockIssued1	65472000	USD
CY2018	us-gaap	Stock Issued1 StockIssued1	0	USD
CY2017	us-gaap	Stock Issued1 StockIssued1	22506000	USD
CY2019	ess	Transfer From Real Estate Under Development To Rental Properties TransferFromRealEstateUnderDevelopmentToRentalProperties	19812000	USD
CY2018	ess	Transfer From Real Estate Under Development To Rental Properties TransferFromRealEstateUnderDevelopmentToRentalProperties	100415000	USD
CY2017	ess	Transfer From Real Estate Under Development To Rental Properties TransferFromRealEstateUnderDevelopmentToRentalProperties	2413000	USD
CY2019	ess	Transfer From Real Estate Under Development To Co Investments TransferFromRealEstateUnderDevelopmentToCoInvestments	671000	USD
CY2018	ess	Transfer From Real Estate Under Development To Co Investments TransferFromRealEstateUnderDevelopmentToCoInvestments	853000	USD
CY2017	ess	Transfer From Real Estate Under Development To Co Investments TransferFromRealEstateUnderDevelopmentToCoInvestments	5075000	USD
CY2019	ess	Reclassification From To Redeemable Noncontrolling Interest ReclassificationFromToRedeemableNoncontrollingInterest	2008000	USD
CY2018	ess	Reclassification From To Redeemable Noncontrolling Interest ReclassificationFromToRedeemableNoncontrollingInterest	1165000	USD
CY2017	ess	Reclassification From To Redeemable Noncontrolling Interest ReclassificationFromToRedeemableNoncontrollingInterest	65000	USD
CY2019	ess	Redemption Of Redeemable Noncontrolling Interest Decrease In Note Receivable RedemptionOfRedeemableNoncontrollingInterestDecreaseInNoteReceivable	0	USD
CY2018	ess	Redemption Of Redeemable Noncontrolling Interest Decrease In Note Receivable RedemptionOfRedeemableNoncontrollingInterestDecreaseInNoteReceivable	4751000	USD
CY2017	ess	Redemption Of Redeemable Noncontrolling Interest Decrease In Note Receivable RedemptionOfRedeemableNoncontrollingInterestDecreaseInNoteReceivable	0	USD
CY2019	us-gaap	Noncash Or Part Noncash Acquisition Debt Assumed1 NoncashOrPartNoncashAcquisitionDebtAssumed1	143006000	USD
CY2018	us-gaap	Noncash Or Part Noncash Acquisition Debt Assumed1 NoncashOrPartNoncashAcquisitionDebtAssumed1	45804000	USD
CY2017	us-gaap	Noncash Or Part Noncash Acquisition Debt Assumed1 NoncashOrPartNoncashAcquisitionDebtAssumed1	51882000	USD
CY2019	ess	Repayment Of Mortgage Note From New Financing Proceeds RepaymentOfMortgageNoteFromNewFinancingProceeds	0	USD
CY2018	ess	Repayment Of Mortgage Note From New Financing Proceeds RepaymentOfMortgageNoteFromNewFinancingProceeds	52000000	USD
CY2017	ess	Repayment Of Mortgage Note From New Financing Proceeds RepaymentOfMortgageNoteFromNewFinancingProceeds	0	USD
CY2018	us-gaap	Noncontrolling Interest Increase From Sale Of Parent Equity Interest NoncontrollingInterestIncreaseFromSaleOfParentEquityInterest	7919000	USD
CY2019	us-gaap	Noncontrolling Interest Increase From Sale Of Parent Equity Interest NoncontrollingInterestIncreaseFromSaleOfParentEquityInterest	65472000	USD
CY2019	us-gaap	Limited Liability Company Llc Or Limited Partnership Lp Managing Member Or General Partner Ownership Interest LimitedLiabilityCompanyLLCOrLimitedPartnershipLPManagingMemberOrGeneralPartnerOwnershipInterest	0.966
CY2019Q4	ess	Noncontrolling Interest Operating Partnership NoncontrollingInterestOperatingPartnership	0.034
CY2019Q4	ess	Operating Partnership Units Outstanding OperatingPartnershipUnitsOutstanding	2301653	shares
CY2018Q4	ess	Operating Partnership Units Outstanding OperatingPartnershipUnitsOutstanding	2305389	shares
CY2019Q4	ess	Redemption Value Of Operating Partnership Units Outstanding RedemptionValueOfOperatingPartnershipUnitsOutstanding	692500000	USD
CY2018Q4	ess	Redemption Value Of Operating Partnership Units Outstanding RedemptionValueOfOperatingPartnershipUnitsOutstanding	565300000	USD
CY2019Q4	ess	Number Of Apartment Communities Owned NumberOfApartmentCommunitiesOwned	250	community
CY2019Q4	ess	Aggregate Apartment Units Owned AggregateApartmentUnitsOwned	60570	apartment
CY2019Q4	ess	Ownership Interests Number Of Commercial Buildings OwnershipInterestsNumberOfCommercialBuildings	1	building
CY2019Q4	ess	Ownership Interests Number Of Consolidated Projects OwnershipInterestsNumberOfConsolidatedProjects	5	project
CY2019Q4	ess	Ownership Interests Number Of Unconsolidated Projects OwnershipInterestsNumberOfUnconsolidatedProjects	2	investment
CY2019Q4	ess	Noncontrolling Interest Operating Partnership NoncontrollingInterestOperatingPartnership	0.034
CY2019	ess	Thresholdusefullifeofassetsforcapitalization Thresholdusefullifeofassetsforcapitalization	P1Y
CY2018Q4	us-gaap	Finite Lived Intangible Assets Net FiniteLivedIntangibleAssetsNet	100000	USD
CY2019Q4	us-gaap	Finite Lived Intangible Assets Net FiniteLivedIntangibleAssetsNet	1200000	USD
CY2019Q4	ess	Numberof Assets Held For Sale NumberofAssetsHeldForSale	0	community
CY2019	us-gaap	Equity Method Investment Other Than Temporary Impairment EquityMethodInvestmentOtherThanTemporaryImpairment	11500000	USD
CY2019	ess	Leasetermsmaximum Leasetermsmaximum	P12M
CY2019	ess	Originalmaturitieshighlyliquidinvestmentstermclassificationascashequivalentsmaximum Originalmaturitieshighlyliquidinvestmentstermclassificationascashequivalentsmaximum	P3M
CY2019Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	70087000	USD
CY2018Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	134465000	USD
CY2017Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	44620000	USD
CY2019Q4	us-gaap	Restricted Cash And Cash Equivalents RestrictedCashAndCashEquivalents	11007000	USD
CY2018Q4	us-gaap	Restricted Cash And Cash Equivalents RestrictedCashAndCashEquivalents	16930000	USD
CY2017Q4	us-gaap	Restricted Cash And Cash Equivalents RestrictedCashAndCashEquivalents	16506000	USD
CY2019Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	81094000	USD
CY2018Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	151395000	USD
CY2017Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	61126000	USD
CY2019Q4	us-gaap	Equity Securities Fv Ni EquitySecuritiesFvNi	3600000	USD
CY2018Q4	us-gaap	Equity Securities Fv Ni EquitySecuritiesFvNi	6700000	USD
CY2019Q4	ess	Marketable Securities Amortized Cost MarketableSecuritiesAmortizedCost	140649000	USD
CY2019Q4	ess	Marketable Securities Accumulated Gross Unrealized Gain Loss Before Tax MarketableSecuritiesAccumulatedGrossUnrealizedGainLossBeforeTax	3544000	USD
CY2019Q4	us-gaap	Marketable Securities MarketableSecurities	144193000	USD
CY2018Q4	ess	Marketable Securities Amortized Cost MarketableSecuritiesAmortizedCost	211960000	USD
CY2018Q4	ess	Marketable Securities Accumulated Gross Unrealized Gain Loss Before Tax MarketableSecuritiesAccumulatedGrossUnrealizedGainLossBeforeTax	-2415000	USD
CY2018Q4	us-gaap	Marketable Securities MarketableSecurities	209545000	USD
CY2019Q4	us-gaap	Proceeds From Maturities Prepayments And Calls Of Mortgage Backed Securities Mbs ProceedsFromMaturitiesPrepaymentsAndCallsOfMortgageBackedSecuritiesMBS	83100000	USD
CY2019Q4	us-gaap	Interest Income Securities Mortgage Backed InterestIncomeSecuritiesMortgageBacked	7000000.0	USD
CY2019	us-gaap	Proceeds From Sale And Maturity Of Marketable Securities ProceedsFromSaleAndMaturityOfMarketableSecurities	147500000	USD
CY2018	us-gaap	Proceeds From Sale And Maturity Of Marketable Securities ProceedsFromSaleAndMaturityOfMarketableSecurities	31500000	USD
CY2017	us-gaap	Proceeds From Sale And Maturity Of Marketable Securities ProceedsFromSaleAndMaturityOfMarketableSecurities	35500000	USD
CY2019	us-gaap	Marketable Securities Realized Gain Loss MarketableSecuritiesRealizedGainLoss	1300000	USD
CY2018	us-gaap	Marketable Securities Realized Gain Loss MarketableSecuritiesRealizedGainLoss	700000	USD
CY2017	us-gaap	Marketable Securities Realized Gain Loss MarketableSecuritiesRealizedGainLoss	1900000	USD
CY2019	ess	Capitalized Internal Costs Related To Development And Redevelopment Projects CapitalizedInternalCostsRelatedToDevelopmentAndRedevelopmentProjects	17900000	USD
CY2018	ess	Capitalized Internal Costs Related To Development And Redevelopment Projects CapitalizedInternalCostsRelatedToDevelopmentAndRedevelopmentProjects	18600000	USD
CY2017	ess	Capitalized Internal Costs Related To Development And Redevelopment Projects CapitalizedInternalCostsRelatedToDevelopmentAndRedevelopmentProjects	18800000	USD
CY2019Q4	ess	Fixed Rate Debt Carrying Amount FixedRateDebtCarryingAmount	5200000000	USD
CY2018Q4	ess	Fixed Rate Debt Carrying Amount FixedRateDebtCarryingAmount	5000000000.0	USD
CY2019Q4	ess	Fixed Rate Debt Fair Value FixedRateDebtFairValue	5400000000	USD
CY2018Q4	ess	Fixed Rate Debt Fair Value FixedRateDebtFairValue	5000000000.0	USD
CY2019Q4	ess	Variable Rate Debt Carrying Amount VariableRateDebtCarryingAmount	660400000	USD
CY2018Q4	ess	Variable Rate Debt Carrying Amount VariableRateDebtCarryingAmount	619600000	USD
CY2019Q4	ess	Variable Rate Debt Fair Value VariableRateDebtFairValue	655800000	USD
CY2018Q4	ess	Variable Rate Debt Fair Value VariableRateDebtFairValue	615200000	USD
CY2019Q4	us-gaap	Proceeds From Maturities Prepayments And Calls Of Mortgage Backed Securities Mbs ProceedsFromMaturitiesPrepaymentsAndCallsOfMortgageBackedSecuritiesMBS	83100000	USD
CY2019Q4	us-gaap	Mortgage Backed Securities Available For Sale Fair Value Disclosure MortgageBackedSecuritiesAvailableForSaleFairValueDisclosure	72700000	USD
CY2018Q4	us-gaap	Mortgage Backed Securities Available For Sale Fair Value Disclosure MortgageBackedSecuritiesAvailableForSaleFairValueDisclosure	129500000	USD
CY2017	ess	Tax Cuts And Jobs Act Of2017 Incomplete Accounting Changein Tax Rate Deferred Tax Liability Provisional Income Tax Expense Benefit TaxCutsAndJobsActOf2017IncompleteAccountingChangeinTaxRateDeferredTaxLiabilityProvisionalIncomeTaxExpenseBenefit	-1500000	USD
CY2019	us-gaap	Oci Before Reclassifications Net Of Tax Attributable To Parent OciBeforeReclassificationsNetOfTaxAttributableToParent	8108000	USD
CY2019	us-gaap	Reclassification From Aoci Current Period Net Of Tax Attributable To Parent ReclassificationFromAociCurrentPeriodNetOfTaxAttributableToParent	8954000	USD
CY2019	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	-671000	USD
CY2019Q4	us-gaap	Redeemable Noncontrolling Interest Equity Carrying Amount RedeemableNoncontrollingInterestEquityCarryingAmount	37400000	USD
CY2018Q4	us-gaap	Redeemable Noncontrolling Interest Equity Carrying Amount RedeemableNoncontrollingInterestEquityCarryingAmount	35500000	USD
CY2018Q4	us-gaap	Redeemable Noncontrolling Interest Equity Carrying Amount RedeemableNoncontrollingInterestEquityCarryingAmount	35475000	USD
CY2017Q4	us-gaap	Redeemable Noncontrolling Interest Equity Carrying Amount RedeemableNoncontrollingInterestEquityCarryingAmount	39206000	USD
CY2016Q4	us-gaap	Redeemable Noncontrolling Interest Equity Carrying Amount RedeemableNoncontrollingInterestEquityCarryingAmount	44684000	USD
CY2019	ess	Noncontrolling Interest Reset Of Prior Year Redemptions NoncontrollingInterestResetOfPriorYearRedemptions	2008000	USD
CY2018	ess	Noncontrolling Interest Reset Of Prior Year Redemptions NoncontrollingInterestResetOfPriorYearRedemptions	1164000	USD
CY2017	ess	Noncontrolling Interest Reset Of Prior Year Redemptions NoncontrollingInterestResetOfPriorYearRedemptions	65000	USD
CY2019	us-gaap	Minority Interest Decrease From Redemptions MinorityInterestDecreaseFromRedemptions	73000	USD
CY2018	us-gaap	Minority Interest Decrease From Redemptions MinorityInterestDecreaseFromRedemptions	4895000	USD
CY2017	us-gaap	Minority Interest Decrease From Redemptions MinorityInterestDecreaseFromRedemptions	5543000	USD
CY2019Q4	us-gaap	Redeemable Noncontrolling Interest Equity Carrying Amount RedeemableNoncontrollingInterestEquityCarryingAmount	37410000	USD
CY2018Q4	us-gaap	Redeemable Noncontrolling Interest Equity Carrying Amount RedeemableNoncontrollingInterestEquityCarryingAmount	35475000	USD
CY2017Q4	us-gaap	Redeemable Noncontrolling Interest Equity Carrying Amount RedeemableNoncontrollingInterestEquityCarryingAmount	39206000	USD
CY2019	us-gaap	Use Of Estimates UseOfEstimates	Accounting Estimates<div style="line-height:120%;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"><br/></span></div><div style="line-height:120%;text-align:left;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;">The preparation of consolidated financial statements, in accordance with U.S. GAAP, requires the Company to make estimates and judgments that affect the reported amounts of assets, liabilities, revenues and expenses and related disclosures of contingent assets and liabilities. On an ongoing basis, the Company evaluates its estimates, including those related to acquiring, developing and assessing the carrying values of its real estate portfolio, its investments in and advances to joint ventures and affiliates, and its notes receivable. The Company bases its estimates on historical experience, current market conditions, and on various other assumptions that are believed to be reasonable under the circumstances. Actual results may vary from those estimates and those estimates could be different under different assumptions or conditions.</span></div><div style="line-height:120%;text-align:center;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"><br/></span></div>
CY2019Q4	ess	Number Of Downreit Limited Partnerships Consolidated By Company NumberOfDownreitLimitedPartnershipsConsolidatedByCompany	17	partnership
CY2019Q4	ess	Number Of Communities Within Downreit Partnerships NumberOfCommunitiesWithinDownreitPartnerships	9	community
CY2019Q4	ess	Variable Interest Entity Number Of Consolidated Coinvestments Determined To Be Variable Interest Entities VariableInterestEntityNumberOfConsolidatedCoinvestmentsDeterminedToBeVariableInterestEntities	6	investment
CY2018Q4	ess	Number Of Downreit Limited Partnerships Consolidated By Company NumberOfDownreitLimitedPartnershipsConsolidatedByCompany	16	partnership
CY2018Q4	ess	Number Of Communities Within Downreit Partnerships NumberOfCommunitiesWithinDownreitPartnerships	8	community
CY2018Q4	ess	Variable Interest Entity Number Of Consolidated Coinvestments Determined To Be Variable Interest Entities VariableInterestEntityNumberOfConsolidatedCoinvestmentsDeterminedToBeVariableInterestEntities	8	investment
CY2019Q4	ess	Liabilities Related To Variable Interest Entities Net Of Intercompany Eliminations LiabilitiesRelatedToVariableInterestEntitiesNetOfIntercompanyEliminations	364300000	USD
CY2018Q4	ess	Assets Related To Variable Interest Entities Net Intercompany Eliminations AssetsRelatedToVariableInterestEntitiesNetIntercompanyEliminations	849800000	USD
CY2018Q4	ess	Liabilities Related To Variable Interest Entities Net Of Intercompany Eliminations LiabilitiesRelatedToVariableInterestEntitiesNetOfIntercompanyEliminations	261700000	USD
CY2019Q4	us-gaap	Noncontrolling Interest In Variable Interest Entity NoncontrollingInterestInVariableInterestEntity	122500000	USD
CY2018Q4	us-gaap	Noncontrolling Interest In Variable Interest Entity NoncontrollingInterestInVariableInterestEntity	64500000	USD
CY2019Q4	ess	Number Of Communities Within Downreit Partnerships NumberOfCommunitiesWithinDownreitPartnerships	9	community
CY2019Q4	ess	Units Of Limited Partnership Interest Amount UnitsOfLimitedPartnershipInterestAmount	1033907	shares
CY2018Q4	ess	Units Of Limited Partnership Interest Amount UnitsOfLimitedPartnershipInterestAmount	912269	shares
CY2019Q4	ess	Redemption Value Of Variable Interest Entities RedemptionValueOfVariableInterestEntities	311100000	USD
CY2018Q4	ess	Redemption Value Of Variable Interest Entities RedemptionValueOfVariableInterestEntities	223700000	USD
CY2019Q4	us-gaap	Redeemable Noncontrolling Interest Equity Carrying Amount RedeemableNoncontrollingInterestEquityCarryingAmount	37400000	USD
CY2018Q4	us-gaap	Redeemable Noncontrolling Interest Equity Carrying Amount RedeemableNoncontrollingInterestEquityCarryingAmount	35500000	USD
CY2019Q4	ess	Redeemable Noncontrolling Interest Equity Carrying Amount Variable Interest Entities RedeemableNoncontrollingInterestEquityCarryingAmountVariableInterestEntities	13000000.0	USD
CY2018Q4	ess	Redeemable Noncontrolling Interest Equity Carrying Amount Variable Interest Entities RedeemableNoncontrollingInterestEquityCarryingAmountVariableInterestEntities	14500000	USD
CY2019Q4	us-gaap	Minority Interest In Limited Partnerships MinorityInterestInLimitedPartnerships	97700000	USD
CY2018Q4	us-gaap	Minority Interest In Limited Partnerships MinorityInterestInLimitedPartnerships	32400000	USD
CY2019	us-gaap	Business Combination Consideration Transferred1 BusinessCombinationConsiderationTransferred1	373300000	USD
CY2019	ess	Number Of Units Acquired NumberOfUnitsAcquired	849	unit
CY2019	us-gaap	Business Combination Consideration Transferred1 BusinessCombinationConsiderationTransferred1	373300000	USD
CY2018	us-gaap	Business Combination Consideration Transferred1 BusinessCombinationConsiderationTransferred1	35400000	USD
CY2019Q3	ess	Preferred Equity Method Investment Promote Interest Earned PreferredEquityMethodInvestmentPromoteInterestEarned	52200000	USD
CY2019Q4	ess	Investments In Distributions In Excess Of Investments In And Advance To Affiliates Subsidiaries Associates And Joint Ventures InvestmentsInDistributionsInExcessOfInvestmentsInAndAdvanceToAffiliatesSubsidiariesAssociatesAndJointVentures	1335339000	USD
CY2018Q4	ess	Investments In Distributions In Excess Of Investments In And Advance To Affiliates Subsidiaries Associates And Joint Ventures InvestmentsInDistributionsInExcessOfInvestmentsInAndAdvanceToAffiliatesSubsidiariesAssociatesAndJointVentures	1300140000	USD
CY2019Q4	ess	Ownership Interests Number Of Consolidated Projects OwnershipInterestsNumberOfConsolidatedProjects	5	project
CY2019Q4	ess	Ownership Interests Number Of Unconsolidated Projects OwnershipInterestsNumberOfUnconsolidatedProjects	2	investment
CY2019Q4	ess	Number Of Units To Be Developed NumberOfUnitsToBeDeveloped	1960	unit
CY2019	us-gaap	Revenues Revenues	1460155000	USD
CY2018	us-gaap	Revenues Revenues	1400053000	USD
CY2017	us-gaap	Revenues Revenues	1363899000	USD
CY2019Q4	us-gaap	Contract With Customer Liability ContractWithCustomerLiability	3900000	USD
CY2018Q4	us-gaap	Contract With Customer Liability ContractWithCustomerLiability	6200000	USD
CY2019	us-gaap	Contract With Customer Liability Revenue Recognized ContractWithCustomerLiabilityRevenueRecognized	2300000	USD
CY2019Q4	us-gaap	Revenue Remaining Performance Obligation RevenueRemainingPerformanceObligation	3900000	USD
CY2019Q4	us-gaap	Revenue Remaining Performance Obligation Percentage RevenueRemainingPerformanceObligationPercentage	0.19
CY2019Q4	us-gaap	Revenue Remaining Performance Obligation Percentage RevenueRemainingPerformanceObligationPercentage	0.38
CY2019Q4	us-gaap	Notes Receivable Net NotesReceivableNet	134365000	USD
CY2018Q4	us-gaap	Notes Receivable Net NotesReceivableNet	71895000	USD
CY2019Q4	us-gaap	Proceeds From Collection Of Notes Receivable ProceedsFromCollectionOfNotesReceivable	36100000	USD
CY2019Q4	us-gaap	Proceeds From Collection Of Notes Receivable ProceedsFromCollectionOfNotesReceivable	6700000	USD
CY2019	ess	Management And Other Fees From Affiliates ManagementAndOtherFeesFromAffiliates	13800000	USD
CY2018	ess	Management And Other Fees From Affiliates ManagementAndOtherFeesFromAffiliates	13900000	USD
CY2017	ess	Management And Other Fees From Affiliates ManagementAndOtherFeesFromAffiliates	12600000	USD
CY2019	ess	Related Party Transaction Revenuesfrom Developmentand Redevelopment Fees RelatedPartyTransactionRevenuesfromDevelopmentandRedevelopmentFees	4300000	USD
CY2018	ess	Related Party Transaction Revenuesfrom Developmentand Redevelopment Fees RelatedPartyTransactionRevenuesfromDevelopmentandRedevelopmentFees	4800000	USD
CY2017	ess	Related Party Transaction Revenuesfrom Developmentand Redevelopment Fees RelatedPartyTransactionRevenuesfromDevelopmentandRedevelopmentFees	3000000.0	USD
CY2017	ess	Equity Method Investment Redeemed Amount EquityMethodInvestmentRedeemedAmount	5000000.0	USD
CY2018	ess	Equity Method Investment Redeemed Amount EquityMethodInvestmentRedeemedAmount	5000000.0	USD
CY2019Q4	us-gaap	Unsecured Debt UnsecuredDebt	4763206000	USD
CY2018Q4	us-gaap	Unsecured Debt UnsecuredDebt	3799316000	USD
CY2019Q4	ess	Unsecured Debt And Line Of Credit UnsecuredDebtAndLineOfCredit	4818206000	USD
CY2018Q4	ess	Unsecured Debt And Line Of Credit UnsecuredDebtAndLineOfCredit	3799316000	USD
CY2019	ess	Line Of Credit Facility Number Of Outstanding Lines LineOfCreditFacilityNumberOfOutstandingLines	2	line_of_credit
CY2019Q4	us-gaap	Senior Notes SeniorNotes	200000000.0	USD
CY2018Q4	us-gaap	Senior Notes SeniorNotes	275000000.0	USD
CY2019	us-gaap	Debt Instrument Interest Rate During Period DebtInstrumentInterestRateDuringPeriod	0.044
CY2018	us-gaap	Debt Instrument Interest Rate During Period DebtInstrumentInterestRateDuringPeriod	0.045
CY2019Q4	us-gaap	Senior Notes SeniorNotes	200000000	USD
CY2018Q4	us-gaap	Senior Notes SeniorNotes	275000000	USD
CY2019Q4	us-gaap	Debt Instrument Face Amount DebtInstrumentFaceAmount	4250000000	USD
CY2018Q4	us-gaap	Debt Instrument Face Amount DebtInstrumentFaceAmount	3200000000	USD
CY2019	ess	Line Of Credit Facility Number Of Lines Of Credit LineOfCreditFacilityNumberOfLinesOfCredit	2	line_of_credit
CY2019Q4	us-gaap	Long Term Debt LongTermDebt	990667000	USD
CY2018Q4	us-gaap	Long Term Debt LongTermDebt	1806626000	USD
CY2019	ess	Number Of Properties Securing Mortgage Notes NumberOfPropertiesSecuringMortgageNotes	24	property
CY2018	ess	Number Of Properties Securing Mortgage Notes NumberOfPropertiesSecuringMortgageNotes	50	property
CY2019Q4	us-gaap	Debt Weighted Average Interest Rate DebtWeightedAverageInterestRate	0.041
CY2018Q4	us-gaap	Debt Weighted Average Interest Rate DebtWeightedAverageInterestRate	0.043
CY2019Q4	us-gaap	Unamortized Debt Issuance Expense UnamortizedDebtIssuanceExpense	2600000	USD
CY2018Q4	us-gaap	Unamortized Debt Issuance Expense UnamortizedDebtIssuanceExpense	4200000	USD
CY2019	ess	Long Term Debt Monthly Interest Expense LongTermDebtMonthlyInterestExpense	5500000	USD
CY2019	ess	Long Term Debt Monthly Principal Amortization LongTermDebtMonthlyPrincipalAmortization	1400000	USD
CY2019	ess	Long Term Debt Repayment Of Debt Before Scheduled Maturity Date Prepayment Penalties LongTermDebtRepaymentOfDebtBeforeScheduledMaturityDatePrepaymentPenalties	The prepayment penalty on the majority of the Company’s mortgage notes payable are computed by the greater of (a) 1% of the amount of the principal being prepaid or (b) the present value of the principal being prepaid multiplied by the difference between the interest rate of the mortgage note and the stated yield rate on a U.S. treasury security which generally has an equivalent remaining term as the mortgage note.
CY2019Q4	ess	Lessor Operating Lease Number Of Commercial Buildings Under Lease Agreements LessorOperatingLeaseNumberOfCommercialBuildingsUnderLeaseAgreements	1	building
CY2019Q4	us-gaap	Lessor Operating Lease Payments To Be Received Next Twelve Months LessorOperatingLeasePaymentsToBeReceivedNextTwelveMonths	746150000	USD
CY2019Q4	us-gaap	Lessor Operating Lease Payments To Be Received Two Years LessorOperatingLeasePaymentsToBeReceivedTwoYears	17986000	USD
CY2019Q4	us-gaap	Lessor Operating Lease Payments To Be Received Three Years LessorOperatingLeasePaymentsToBeReceivedThreeYears	14482000	USD
CY2019Q4	us-gaap	Lessor Operating Lease Payments To Be Received Four Years LessorOperatingLeasePaymentsToBeReceivedFourYears	13302000	USD
CY2019Q4	us-gaap	Lessor Operating Lease Payments To Be Received Five Years LessorOperatingLeasePaymentsToBeReceivedFiveYears	11542000	USD
CY2019Q4	us-gaap	Lessor Operating Lease Payments To Be Received Thereafter LessorOperatingLeasePaymentsToBeReceivedThereafter	26967000	USD
CY2019Q4	us-gaap	Lessor Operating Lease Payments To Be Received LessorOperatingLeasePaymentsToBeReceived	830429000	USD
CY2019Q4	us-gaap	Operating Leases Future Minimum Payments Receivable Current OperatingLeasesFutureMinimumPaymentsReceivableCurrent	16386000	USD
CY2019Q4	us-gaap	Operating Leases Future Minimum Payments Receivable In Two Years OperatingLeasesFutureMinimumPaymentsReceivableInTwoYears	15842000	USD
CY2019Q4	us-gaap	Operating Leases Future Minimum Payments Receivable In Three Years OperatingLeasesFutureMinimumPaymentsReceivableInThreeYears	14412000	USD
CY2019Q4	us-gaap	Operating Leases Future Minimum Payments Receivable In Four Years OperatingLeasesFutureMinimumPaymentsReceivableInFourYears	13324000	USD
CY2019Q4	us-gaap	Operating Leases Future Minimum Payments Receivable In Five Years OperatingLeasesFutureMinimumPaymentsReceivableInFiveYears	12181000	USD
CY2019Q4	us-gaap	Operating Leases Future Minimum Payments Receivable Thereafter OperatingLeasesFutureMinimumPaymentsReceivableThereafter	33034000	USD
CY2019Q4	us-gaap	Operating Leases Future Minimum Payments Receivable OperatingLeasesFutureMinimumPaymentsReceivable	105179000	USD
CY2019	ess	Lessee Operating Lease Office Lease Renewal Term LesseeOperatingLeaseOfficeLeaseRenewalTerm	P5Y
CY2019Q4	ess	Lease Right Of Use Asset LeaseRightOfUseAsset	74744000	USD
CY2019Q4	ess	Lease Liability LeaseLiability	76740000	USD
CY2019	us-gaap	Operating Lease Cost OperatingLeaseCost	6745000	USD
CY2019	us-gaap	Variable Lease Cost VariableLeaseCost	783000	USD
CY2019	us-gaap	Short Term Lease Cost ShortTermLeaseCost	610000	USD
CY2019	us-gaap	Sublease Income SubleaseIncome	436000	USD
CY2019	us-gaap	Lease Cost LeaseCost	7702000	USD
CY2019Q4	us-gaap	Lessee Operating Lease Liability Payments Due Next Twelve Months LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths	6855000	USD
CY2019Q4	us-gaap	Lessee Operating Lease Liability Payments Due Year Two LesseeOperatingLeaseLiabilityPaymentsDueYearTwo	6877000	USD
CY2019Q4	us-gaap	Lessee Operating Lease Liability Payments Due Year Three LesseeOperatingLeaseLiabilityPaymentsDueYearThree	6888000	USD
CY2019Q4	us-gaap	Lessee Operating Lease Liability Payments Due Year Four LesseeOperatingLeaseLiabilityPaymentsDueYearFour	6860000	USD
CY2019Q4	us-gaap	Lessee Operating Lease Liability Payments Due Year Five LesseeOperatingLeaseLiabilityPaymentsDueYearFive	6585000	USD
CY2019Q4	us-gaap	Lessee Operating Lease Liability Payments Due After Year Five LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive	146673000	USD
CY2019Q4	us-gaap	Lessee Operating Lease Liability Payments Due LesseeOperatingLeaseLiabilityPaymentsDue	180738000	USD
CY2019Q4	us-gaap	Lessee Operating Lease Liability Undiscounted Excess Amount LesseeOperatingLeaseLiabilityUndiscountedExcessAmount	103998000	USD
CY2019Q4	us-gaap	Operating Lease Liability OperatingLeaseLiability	76740000	USD
CY2019Q4	us-gaap	Operating Lease Weighted Average Remaining Lease Term1 OperatingLeaseWeightedAverageRemainingLeaseTerm1	P39Y
CY2019Q4	us-gaap	Operating Lease Weighted Average Discount Rate Percent OperatingLeaseWeightedAverageDiscountRatePercent	0.0499
CY2018Q4	us-gaap	Operating Leases Future Minimum Payments Due Current OperatingLeasesFutureMinimumPaymentsDueCurrent	6811000	USD
CY2018Q4	us-gaap	Operating Leases Future Minimum Payments Due In Two Years OperatingLeasesFutureMinimumPaymentsDueInTwoYears	6855000	USD
CY2018Q4	us-gaap	Operating Leases Future Minimum Payments Due In Three Years OperatingLeasesFutureMinimumPaymentsDueInThreeYears	6877000	USD
CY2018Q4	us-gaap	Operating Leases Future Minimum Payments Due In Four Years OperatingLeasesFutureMinimumPaymentsDueInFourYears	6888000	USD
CY2018Q4	us-gaap	Operating Leases Future Minimum Payments Due In Five Years OperatingLeasesFutureMinimumPaymentsDueInFiveYears	6860000	USD
CY2018Q4	us-gaap	Operating Leases Future Minimum Payments Due Thereafter OperatingLeasesFutureMinimumPaymentsDueThereafter	153258000	USD
CY2018Q4	us-gaap	Operating Leases Future Minimum Payments Due OperatingLeasesFutureMinimumPaymentsDue	187549000	USD
CY2019	us-gaap	Limited Liability Company Llc Or Limited Partnership Lp Managing Member Or General Partner Ownership Interest LimitedLiabilityCompanyLLCOrLimitedPartnershipLPManagingMemberOrGeneralPartnerOwnershipInterest	0.966
CY2019	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Risk Free Interest Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate	0.0201
CY2018	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Risk Free Interest Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate	0.0276
CY2017	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Risk Free Interest Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate	0.0230
CY2019	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Fair Value Assumptions Expected Term1 SharebasedCompensationArrangementBySharebasedPaymentAwardFairValueAssumptionsExpectedTerm1	P6Y
CY2018	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Fair Value Assumptions Expected Term1 SharebasedCompensationArrangementBySharebasedPaymentAwardFairValueAssumptionsExpectedTerm1	P6Y
CY2019Q4	ess	Redemption Value Of Operating Partnership Units Outstanding RedemptionValueOfOperatingPartnershipUnitsOutstanding	692500000	USD
CY2018Q4	ess	Redemption Value Of Operating Partnership Units Outstanding RedemptionValueOfOperatingPartnershipUnitsOutstanding	565300000	USD
CY2019	us-gaap	Income Loss From Continuing Operations IncomeLossFromContinuingOperations	439286000	USD
CY2019	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	65840422	shares
CY2019	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	6.67
CY2018	us-gaap	Income Loss From Continuing Operations IncomeLossFromContinuingOperations	390153000	USD
CY2018	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	66041058	shares
CY2018	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	5.91
CY2017	us-gaap	Income Loss From Continuing Operations IncomeLossFromContinuingOperations	433059000	USD
CY2017	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	65829155	shares
CY2017	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	6.58
CY2019	ess	Income From Continuing Operations Available To Common Stockholders1 IncomeFromContinuingOperationsAvailableToCommonStockholders1	439286000	USD
CY2019	ess	Adjusted Income From Continuing Operations Available To Common Stockholders AdjustedIncomeFromContinuingOperationsAvailableToCommonStockholders	65939455	shares
CY2019	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	6.66
CY2018	ess	Income From Continuing Operations Available To Common Stockholders1 IncomeFromContinuingOperationsAvailableToCommonStockholders1	390153000	USD
CY2018	ess	Adjusted Income From Continuing Operations Available To Common Stockholders AdjustedIncomeFromContinuingOperationsAvailableToCommonStockholders	66085089	shares
CY2018	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	5.90
CY2017	ess	Income From Continuing Operations Available To Common Stockholders1 IncomeFromContinuingOperationsAvailableToCommonStockholders1	433059000	USD
CY2017	ess	Adjusted Income From Continuing Operations Available To Common Stockholders AdjustedIncomeFromContinuingOperationsAvailableToCommonStockholders	65898255	shares
CY2017	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	6.57
CY2018Q2	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Number Of Shares Authorized ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAuthorized	2000000	shares
CY2019	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Accelerated Compensation Cost ShareBasedCompensationArrangementByShareBasedPaymentAwardAcceleratedCompensationCost	3500000	USD
CY2019Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Vested And Expected To Vest Outstanding Aggregate Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingAggregateIntrinsicValue	23500000	USD
CY2018Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Vested And Expected To Vest Outstanding Aggregate Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingAggregateIntrinsicValue	12500000	USD
CY2019	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period Weighted Average Grant Date Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue	24.02
CY2018	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period Weighted Average Grant Date Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue	26.13
CY2017	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period Weighted Average Grant Date Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue	22.41
CY2019	ess	Sharebased Compensation Arrangementby Sharebased Payment Award Cap On Appreciationof The Market Price Over The Exercise Price Option1 SharebasedCompensationArrangementbySharebasedPaymentAwardCapOnAppreciationofTheMarketPriceOverTheExercisePriceOption1	100	USD
CY2019	ess	Sharebased Compensation Arrangementby Sharebased Payment Award Cap On Appreciationof The Market Price Over The Exercise Price Option2 SharebasedCompensationArrangementbySharebasedPaymentAwardCapOnAppreciationofTheMarketPriceOverTheExercisePriceOption2	125	USD
CY2019	ess	Stock Price StockPrice	304.85
CY2018	ess	Stock Price StockPrice	262.09
CY2017	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Fair Value Assumptions Expected Term1 SharebasedCompensationArrangementBySharebasedPaymentAwardFairValueAssumptionsExpectedTerm1	P6Y
CY2019	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Expected Volatility Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate	0.1956
CY2017	ess	Stock Price StockPrice	240.56
CY2018	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Expected Volatility Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate	0.2489
CY2017	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Expected Volatility Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate	0.2410
CY2019	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Expected Dividend Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedDividendRate	0.0272
CY2018	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Expected Dividend Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedDividendRate	0.0281
CY2017	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Expected Dividend Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedDividendRate	0.0290
CY2018Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber	612954	shares
CY2018Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice	224.57
CY2017Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber	536208	shares
CY2017Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice	211.41
CY2016Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber	557648	shares
CY2016Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice	181.50
CY2019	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriod	148147	shares
CY2019	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Grants In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice	304.85
CY2018	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriod	119361	shares
CY2018	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Grants In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice	262.09
CY2017	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriod	164677	shares
CY2017	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Grants In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice	240.56
CY2019	us-gaap	Stock Issued During Period Shares Stock Options Exercised StockIssuedDuringPeriodSharesStockOptionsExercised	182817	shares
CY2019	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Exercises In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice	205.25
CY2018	us-gaap	Stock Issued During Period Shares Stock Options Exercised StockIssuedDuringPeriodSharesStockOptionsExercised	39175	shares
CY2018	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Exercises In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice	159.05
CY2017	us-gaap	Stock Issued During Period Shares Stock Options Exercised StockIssuedDuringPeriodSharesStockOptionsExercised	176489	shares
CY2017	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Exercises In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice	146.86
CY2019	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Forfeitures And Expirations In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresAndExpirationsInPeriod	5313	shares
CY2019	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Forfeitures And Expirations In Period Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresAndExpirationsInPeriodWeightedAverageExercisePrice	257.87
CY2018	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Forfeitures And Expirations In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresAndExpirationsInPeriod	3440	shares
CY2018	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Forfeitures And Expirations In Period Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresAndExpirationsInPeriodWeightedAverageExercisePrice	221.80
CY2017	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Forfeitures And Expirations In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresAndExpirationsInPeriod	9628	shares
CY2017	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Forfeitures And Expirations In Period Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresAndExpirationsInPeriodWeightedAverageExercisePrice	160.40
CY2019Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber	572971	shares
CY2019Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice	251.10
CY2018Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber	612954	shares
CY2018Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice	224.57
CY2017Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber	536208	shares
CY2017Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice	211.41
CY2019Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercisable Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber	305379	shares
CY2019Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercisable Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice	223.90
CY2018Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercisable Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber	322837	shares
CY2018Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercisable Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice	206.63
CY2017Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercisable Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber	223796	shares
CY2017Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercisable Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice	191.09
CY2019	us-gaap	Number Of Operating Segments NumberOfOperatingSegments	3	segment
CY2019	ess	Net Operating Income From Segments NetOperatingIncomeFromSegments	1052933000	USD
CY2018	ess	Net Operating Income From Segments NetOperatingIncomeFromSegments	1005536000	USD
CY2017	ess	Net Operating Income From Segments NetOperatingIncomeFromSegments	978939000	USD
CY2019	ess	Corporate Property Management Expenses CorporatePropertyManagementExpenses	32899000	USD
CY2018	ess	Corporate Property Management Expenses CorporatePropertyManagementExpenses	31062000	USD
CY2017	ess	Corporate Property Management Expenses CorporatePropertyManagementExpenses	30156000	USD
CY2019	us-gaap	Depreciation Depreciation	483750000	USD
CY2018	us-gaap	Depreciation Depreciation	479884000	USD
CY2017	us-gaap	Depreciation Depreciation	468881000	USD
CY2019	us-gaap	General And Administrative Expense GeneralAndAdministrativeExpense	54262000	USD
CY2018	us-gaap	General And Administrative Expense GeneralAndAdministrativeExpense	53451000	USD
CY2017	us-gaap	General And Administrative Expense GeneralAndAdministrativeExpense	41385000	USD
CY2019	us-gaap	Business Combination Acquisition Related Costs BusinessCombinationAcquisitionRelatedCosts	168000	USD
CY2018	us-gaap	Business Combination Acquisition Related Costs BusinessCombinationAcquisitionRelatedCosts	194000	USD
CY2017	us-gaap	Business Combination Acquisition Related Costs BusinessCombinationAcquisitionRelatedCosts	1569000	USD
CY2019	us-gaap	Asset Impairment Charges AssetImpairmentCharges	7105000	USD
CY2018	us-gaap	Asset Impairment Charges AssetImpairmentCharges	0	USD
CY2017	us-gaap	Asset Impairment Charges AssetImpairmentCharges	0	USD
CY2019	us-gaap	Gains Losses On Sales Of Investment Real Estate GainsLossesOnSalesOfInvestmentRealEstate	-3164000	USD
CY2018	us-gaap	Gains Losses On Sales Of Investment Real Estate GainsLossesOnSalesOfInvestmentRealEstate	61861000	USD
CY2017	us-gaap	Gains Losses On Sales Of Investment Real Estate GainsLossesOnSalesOfInvestmentRealEstate	26423000	USD
CY2019	us-gaap	Interest Expense InterestExpense	217339000	USD
CY2018	us-gaap	Interest Expense InterestExpense	220492000	USD
CY2017	us-gaap	Interest Expense InterestExpense	222894000	USD
CY2019	us-gaap	Derivative Gain On Derivative DerivativeGainOnDerivative	8446000	USD
CY2018	us-gaap	Derivative Gain On Derivative DerivativeGainOnDerivative	8707000	USD
CY2017	us-gaap	Derivative Gain On Derivative DerivativeGainOnDerivative	10098000	USD
CY2019	us-gaap	Interest And Other Income InterestAndOtherIncome	46298000	USD
CY2018	us-gaap	Interest And Other Income InterestAndOtherIncome	23010000	USD
CY2017	us-gaap	Interest And Other Income InterestAndOtherIncome	24604000	USD
CY2019	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	112136000	USD
CY2018	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	89132000	USD
CY2017	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	86445000	USD
CY2019	us-gaap	Deferred Other Tax Expense Benefit DeferredOtherTaxExpenseBenefit	1457000	USD
CY2018	us-gaap	Deferred Other Tax Expense Benefit DeferredOtherTaxExpenseBenefit	0	USD
CY2017	us-gaap	Deferred Other Tax Expense Benefit DeferredOtherTaxExpenseBenefit	0	USD
CY2019	us-gaap	Gains Losses On Extinguishment Of Debt GainsLossesOnExtinguishmentOfDebt	3717000	USD
CY2018	us-gaap	Gains Losses On Extinguishment Of Debt GainsLossesOnExtinguishmentOfDebt	0	USD
CY2017	us-gaap	Gains Losses On Extinguishment Of Debt GainsLossesOnExtinguishmentOfDebt	-1796000	USD
CY2019	ess	Gain On Remeasurement Of Co Investment GainOnRemeasurementOfCoInvestment	31535000	USD
CY2018	ess	Gain On Remeasurement Of Co Investment GainOnRemeasurementOfCoInvestment	1253000	USD
CY2017	ess	Gain On Remeasurement Of Co Investment GainOnRemeasurementOfCoInvestment	88641000	USD
CY2019	us-gaap	Income Loss From Continuing Operations Including Portion Attributable To Noncontrolling Interest IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest	464448000	USD
CY2018	us-gaap	Income Loss From Continuing Operations Including Portion Attributable To Noncontrolling Interest IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest	413599000	USD
CY2017	us-gaap	Income Loss From Continuing Operations Including Portion Attributable To Noncontrolling Interest IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest	458043000	USD
CY2019Q4	us-gaap	Real Estate Investment Property Net RealEstateInvestmentPropertyNet	10348660000	USD
CY2018Q4	us-gaap	Real Estate Investment Property Net RealEstateInvestmentPropertyNet	10156553000	USD
CY2019Q4	us-gaap	Development In Process DevelopmentInProcess	546075000	USD
CY2018Q4	us-gaap	Development In Process DevelopmentInProcess	454629000	USD
CY2019Q4	us-gaap	Investments In Affiliates Subsidiaries Associates And Joint Ventures InvestmentsInAffiliatesSubsidiariesAssociatesAndJointVentures	1335339000	USD
CY2018Q4	us-gaap	Investments In Affiliates Subsidiaries Associates And Joint Ventures InvestmentsInAffiliatesSubsidiariesAssociatesAndJointVentures	1300140000	USD
CY2019Q4	us-gaap	Cash Cash Equivalents And Short Term Investments CashCashEquivalentsAndShortTermInvestments	81094000	USD
CY2018Q4	us-gaap	Cash Cash Equivalents And Short Term Investments CashCashEquivalentsAndShortTermInvestments	151395000	USD
CY2019Q4	us-gaap	Marketable Securities MarketableSecurities	144193000	USD
CY2018Q4	us-gaap	Marketable Securities MarketableSecurities	209545000	USD
CY2019Q4	us-gaap	Notes Receivable Net NotesReceivableNet	134365000	USD
CY2018Q4	us-gaap	Notes Receivable Net NotesReceivableNet	71895000	USD
CY2019Q4	us-gaap	Operating Lease Right Of Use Asset OperatingLeaseRightOfUseAsset	74744000	USD
CY2018Q4	us-gaap	Operating Lease Right Of Use Asset OperatingLeaseRightOfUseAsset	0	USD
CY2019Q4	us-gaap	Prepaid Expense And Other Assets PrepaidExpenseAndOtherAssets	40935000	USD
CY2018Q4	us-gaap	Prepaid Expense And Other Assets PrepaidExpenseAndOtherAssets	39439000	USD
CY2019Q4	us-gaap	Assets Assets	12705405000	USD
CY2018Q4	us-gaap	Assets Assets	12383596000	USD
CY2019	us-gaap	Defined Contribution Plan Employer Matching Contribution Percent Of Match DefinedContributionPlanEmployerMatchingContributionPercentOfMatch	0.50
CY2019	us-gaap	Defined Contribution Plan Cost Recognized DefinedContributionPlanCostRecognized	2400000	USD
CY2018	us-gaap	Defined Contribution Plan Cost Recognized DefinedContributionPlanCostRecognized	2100000	USD
CY2017	us-gaap	Defined Contribution Plan Cost Recognized DefinedContributionPlanCostRecognized	1800000	USD
CY2019Q4	ess	Property Casualty Insurance Deductible Per Incident Maximum PropertyCasualtyInsuranceDeductiblePerIncidentMaximum	5000000.0	USD
CY2019Q4	us-gaap	Profit Loss ProfitLoss	135182000	USD
CY2019Q3	us-gaap	Profit Loss ProfitLoss	105700000	USD
CY2019Q2	us-gaap	Profit Loss ProfitLoss	98061000	USD
CY2019Q1	us-gaap	Profit Loss ProfitLoss	125505000	USD
CY2019Q4	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	128818000	USD
CY2019Q3	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	99335000	USD
CY2019Q2	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	92275000	USD
CY2019Q1	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	118858000	USD
CY2019Q4	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	1.95
CY2019Q3	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	1.51
CY2019Q2	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	1.40
CY2019Q1	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	1.81
CY2019Q4	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	1.95
CY2019Q3	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	1.51
CY2019Q2	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	1.40
CY2019Q1	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	1.81
CY2019Q4	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	1.95
CY2019Q3	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	1.95
CY2019Q2	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	1.95
CY2019Q1	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	1.95
CY2018Q4	us-gaap	Profit Loss ProfitLoss	124440000	USD
CY2018Q3	us-gaap	Profit Loss ProfitLoss	86110000	USD
CY2018Q2	us-gaap	Profit Loss ProfitLoss	106410000	USD
CY2018Q1	us-gaap	Profit Loss ProfitLoss	96639000	USD
CY2018Q4	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	117820000	USD
CY2018Q3	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	80975000	USD
CY2018Q2	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	100440000	USD
CY2018Q1	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	90918000	USD
CY2018Q4	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	1.78
CY2018Q3	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	1.23
CY2018Q2	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	1.52
CY2018Q1	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	1.38
CY2018Q4	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	1.78
CY2018Q3	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	1.22
CY2018Q2	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	1.52
CY2018Q1	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	1.38
CY2018Q4	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	1.86
CY2018Q3	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	1.86
CY2018Q2	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	1.86
CY2018Q1	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	1.86
CY2019Q4	srt	Real Estate And Accumulated Depreciation Amount Of Encumbrances RealEstateAndAccumulatedDepreciationAmountOfEncumbrances	990667000	USD
CY2019Q4	us-gaap	Real Estate And Accumulated Depreciation Initial Cost Of Land RealEstateAndAccumulatedDepreciationInitialCostOfLand	2736256000	USD
CY2019Q4	us-gaap	Real Estate And Accumulated Depreciation Initial Cost Of Buildings And Improvements RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements	9395624000	USD
CY2019Q4	us-gaap	Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Carrying Costs RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts	1906262000	USD
CY2019Q4	us-gaap	Real Estate And Accumulated Depreciation Carrying Amount Of Land RealEstateAndAccumulatedDepreciationCarryingAmountOfLand	2773805000	USD
CY2019Q4	us-gaap	Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements	11264337000	USD
CY2019Q4	us-gaap	Real Estate Gross At Carrying Value RealEstateGrossAtCarryingValue	14038142000	USD
CY2019Q4	us-gaap	Real Estate Accumulated Depreciation RealEstateAccumulatedDepreciation	3689482000	USD
CY2019	ess	Aggregate Cost For Federal Income Tax Purpose AggregateCostForFederalIncomeTaxPurpose	11000000000.0	USD
CY2018Q4	us-gaap	Real Estate Accumulated Depreciation RealEstateAccumulatedDepreciation	3209548000	USD
CY2017Q4	us-gaap	Real Estate Accumulated Depreciation RealEstateAccumulatedDepreciation	2769297000	USD
CY2016Q4	us-gaap	Real Estate Accumulated Depreciation RealEstateAccumulatedDepreciation	2311546000	USD
CY2019	ess	Sec Schedule Iiir Eal Estate Improvements Acquisitions And Developments SECScheduleIIIREalEstateImprovementsAcquisitionsAndDevelopments	672041000	USD
CY2018	ess	Sec Schedule Iiir Eal Estate Improvements Acquisitions And Developments SECScheduleIIIREalEstateImprovementsAcquisitionsAndDevelopments	325986000	USD
CY2017	ess	Sec Schedule Iiir Eal Estate Improvements Acquisitions And Developments SECScheduleIIIREalEstateImprovementsAcquisitionsAndDevelopments	700892000	USD
CY2019	us-gaap	Sec Schedule Iii Real Estate Accumulated Depreciation Depreciation Expense SECScheduleIIIRealEstateAccumulatedDepreciationDepreciationExpense	479934000	USD
CY2018	us-gaap	Sec Schedule Iii Real Estate Accumulated Depreciation Depreciation Expense SECScheduleIIIRealEstateAccumulatedDepreciationDepreciationExpense	478721000	USD
CY2017	us-gaap	Sec Schedule Iii Real Estate Accumulated Depreciation Depreciation Expense SECScheduleIIIRealEstateAccumulatedDepreciationDepreciationExpense	464043000	USD
CY2019	us-gaap	Real Estate Other Deductions RealEstateOtherDeductions	0	USD
CY2018	us-gaap	Real Estate Other Deductions RealEstateOtherDeductions	321958000	USD
CY2017	us-gaap	Real Estate Other Deductions RealEstateOtherDeductions	28367000	USD
CY2019	us-gaap	Real Estate Accumulated Depreciation Other Deductions RealEstateAccumulatedDepreciationOtherDeductions	0	USD
CY2018	us-gaap	Real Estate Accumulated Depreciation Other Deductions RealEstateAccumulatedDepreciationOtherDeductions	38470000	USD
CY2017	us-gaap	Real Estate Accumulated Depreciation Other Deductions RealEstateAccumulatedDepreciationOtherDeductions	6292000	USD
CY2019	ess	Sec Schedule1228 Real Estate Companies Investment In Real Estate Transfers Into Buildings And Improvements Net SECSchedule1228RealEstateCompaniesInvestmentInRealEstateTransfersIntoBuildingsAndImprovementsNet	0	USD
CY2018	ess	Sec Schedule1228 Real Estate Companies Investment In Real Estate Transfers Into Buildings And Improvements Net SECSchedule1228RealEstateCompaniesInvestmentInRealEstateTransfersIntoBuildingsAndImprovementsNet	0	USD
CY2017	ess	Sec Schedule1228 Real Estate Companies Investment In Real Estate Transfers Into Buildings And Improvements Net SECSchedule1228RealEstateCompaniesInvestmentInRealEstateTransfersIntoBuildingsAndImprovementsNet	1826000	USD
CY2019Q4	us-gaap	Real Estate Accumulated Depreciation RealEstateAccumulatedDepreciation	3689482000	USD
CY2018Q4	us-gaap	Real Estate Accumulated Depreciation RealEstateAccumulatedDepreciation	3209548000	USD
CY2017Q4	us-gaap	Real Estate Accumulated Depreciation RealEstateAccumulatedDepreciation	2769297000	USD

Files In Submission

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$ESS
ESSEX PROPERTY TRUST, INC. Stock $ess

2019 Q4 Form 10-K Financial Statement

#000092052220000026 Filed on February 20, 2020

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$ESS ESSEX PROPERTY TRUST, INC. Stock $ess

2019 Q4 Form 10-K Financial Statement

#000092052220000026 Filed on February 20, 2020

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$ESS
ESSEX PROPERTY TRUST, INC. Stock $ess