Co-investments - Narrative (Details) $ in Millions	Mar. 31, 2024 USD ($) investment	Dec. 31, 2023 USD ($) investment
Investments in and Advance to Affiliates, Subsidiaries, Associates, and Joint Ventures [Abstract]
Number of technology co-investments \| investment	5	5
Co-investment	$ 50.5	$ 44.2
Co-investment, committed capital	$ 86.0	$ 86.0

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