Real Estate Investments - Narrative (Details) $ in Millions	Dec. 31, 2023 USD ($) investment	Dec. 31, 2022 USD ($) investment
Real Estate Investments, Net [Abstract]
Number of technology co-investments \| investment	5	6
Co-investment	$ 44.2	$ 39.4
Co-investment, committed capital	$ 86.0	$ 87.0

Co-Investment, Committed Capital In Advance To Affiliates, Subsidiaries, Associates, And Joint Ventures

No definition available.

Name:	ess_CoInvestmentCommittedCapitalInAdvanceToAffiliatesSubsidiariesAssociatesAndJointVentures
Namespace Prefix:	ess_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant