Significant Transactions During the Three Months Ended March 31, 2025 and Subsequent Events - Narrative (Details) $ in Thousands	1 Months Ended		3 Months Ended
	Apr. 30, 2025 USD ($)	Mar. 31, 2025 USD ($) community property	Mar. 31, 2025 USD ($) community property	Dec. 31, 2024 USD ($) apartment	Mar. 31, 2024 USD ($)	Feb. 28, 2025 USD ($)
Other Commitments [Line Items]
Number of communities owned | community		1	1
Community apartment homes | property		350	350
Co-investments		$ 906,686	$ 906,686	$ 935,014
Gain on remeasurement of co-investment			330		$ 138,326
Proceeds from preferred equity investment		9,900	13,709		9,080
Debt instrument face amount		300,000	300,000
Contract price			125,997		0
Subsequent Event
Other Commitments [Line Items]
Unsecured notes at maturity	$ 500,000
Stabilized Apartment Home Community Located In Oakland
Other Commitments [Line Items]
Unsecured notes at maturity				72,000
Co-investments				$ 22,700
Apartment homes | apartment				241
Value of property held				$ 95,000
Gain on remeasurement of co-investment				300
Apartment Home Community Located In Santa Ana, CA | Subsequent Event
Other Commitments [Line Items]
Contract price	239,600
Essex Portfolio, L.P.
Other Commitments [Line Items]
Co-investments		$ 906,686	906,686	$ 935,014
Gain on remeasurement of co-investment			330		138,326
Proceeds from preferred equity investment			13,709		9,080
Contract price			$ 125,997		$ 0
Bonds public offering - fixed rate, net | Essex Portfolio, L.P. | Subsequent Event
Other Commitments [Line Items]
Unsecured notes at maturity	$ 500,000
Unsecured Bonds 5.500%, Due April 2034 | Bonds public offering - fixed rate, net | Essex Portfolio, L.P.
Other Commitments [Line Items]
Debt instrument face amount						$ 400,000
Interest rate						5.375%
Debt instrument, debt offering price, percentage of principal						99.604%