Co-investments - Narrative (Details) $ in Millions	Jun. 30, 2023 USD ($) investment	Dec. 31, 2022 USD ($) investment
Investments in and Advance to Affiliates, Subsidiaries, Associates, and Joint Ventures [Abstract]
Number of technology co-investments \| investment	6	6
Co-investment	$ 37.3	$ 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.

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