Real Estate Investments - Acquisitions of Real Estate Interests (Details) $ in Thousands	1 Months Ended					3 Months Ended	12 Months Ended
	Oct. 31, 2024 USD ($) community	Sep. 30, 2024 USD ($) unit	Jul. 31, 2024 USD ($)	Apr. 30, 2024 USD ($)	Mar. 31, 2024 USD ($) community apartment	Sep. 30, 2024 apartment	Dec. 31, 2024 USD ($) apartment	Dec. 31, 2023 USD ($)	Dec. 31, 2022 USD ($)
Schedule of Equity Method Investments [Line Items]
Gain on remeasurement of co-investments							$ 210,555	$ 0	$ 17,423
Equity income from co-investments							48,206	10,561	$ 26,030
Preferred equity investment, commitment to fund							399,400
Co-investment							$ 935,014	$ 1,061,733
Membership Interest in BEXAEW
Schedule of Equity Method Investments [Line Items]
Apartment Homes | apartment					1,480
Limited partnership interest					49.90%
BEX II Portfolio
Schedule of Equity Method Investments [Line Items]
Contract Price at Pro Rata Share	$ 337,500
Number of communities owned | community	4
Debt instrument, repaid, principal	$ 95,000
Gain on remeasurement of co-investments	$ 40,600
Joint venture ownership percent	49.90%
BEXAEW Portfolio
Schedule of Equity Method Investments [Line Items]
Contract Price at Pro Rata Share					$ 505,000
Number of communities owned | community					4
Debt instrument, repaid, principal					$ 219,900
Equity income from co-investments					$ 1,500
BEXAEW Portfolio | Membership Interest in BEXAEW
Schedule of Equity Method Investments [Line Items]
Limited partnership interest					49.90%
Patina at Midtown
Schedule of Equity Method Investments [Line Items]
Apartment Homes | apartment						269
Contract Price at Pro Rata Share			$ 117,000
Debt instrument, repaid, principal			$ 95,000
Joint venture ownership percent		49.90%	49.90%			49.90%
Century Towers
Schedule of Equity Method Investments [Line Items]
Apartment Homes | apartment						376
Contract Price at Pro Rata Share		$ 173,500
Debt instrument, repaid, principal		110,500
Gain on remeasurement of co-investments		$ 29,400
Joint venture ownership percent		50.00%				50.00%
Number of OP units issued | unit		81,737
Number of OP units agreed price, per unit		$ 305
Apartment Homes Located In Sunnyvale, CA
Schedule of Equity Method Investments [Line Items]
Repayments of secured debt				$ 46,600
Co-investment				$ 14,700
Apartment Building
Schedule of Equity Method Investments [Line Items]
Apartment Homes | apartment							3,579
Contract Price at Pro Rata Share							$ 849,400
Apartment Building | Patina at Midtown
Schedule of Equity Method Investments [Line Items]
Gain on remeasurement of co-investments			$ 2,200
Apartment Building | BEXAEW Portfolio
Schedule of Equity Method Investments [Line Items]
Apartment Homes | apartment							1,480
Essex Ownership Percentage							100.00%
Contract Price at Pro Rata Share							$ 252,000
Apartment Building | Maxwell Sunnyvale
Schedule of Equity Method Investments [Line Items]
Apartment Homes | apartment							75
Essex Ownership Percentage							100.00%
Contract Price at Pro Rata Share							$ 46,600
Apartment Building | ARLO Mountain View
Schedule of Equity Method Investments [Line Items]
Apartment Homes | apartment							164
Essex Ownership Percentage							100.00%
Contract Price at Pro Rata Share							$ 101,100
Apartment Building | Patina at Midtown
Schedule of Equity Method Investments [Line Items]
Apartment Homes | apartment							269
Essex Ownership Percentage							100.00%
Contract Price at Pro Rata Share							$ 58,400
Apartment Building | Century Towers
Schedule of Equity Method Investments [Line Items]
Apartment Homes | apartment							376
Essex Ownership Percentage							100.00%
Contract Price at Pro Rata Share							$ 86,800
Apartment Building | BEX II Portfolio
Schedule of Equity Method Investments [Line Items]
Apartment Homes | apartment							871
Essex Ownership Percentage							100.00%
Contract Price at Pro Rata Share							$ 168,400
Apartment Building | Beaumont
Schedule of Equity Method Investments [Line Items]
Apartment Homes | apartment							344
Essex Ownership Percentage							100.00%
Contract Price at Pro Rata Share							$ 136,100
Apartment Building | Regency Palm Court and Windsor Court
Schedule of Equity Method Investments [Line Items]
Gain on remeasurement of co-investments					$ 138,300