EPLP - Consolidated Statements of Capital - USD ($) shares in Thousands, $ in Thousands	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Increase (Decrease) in Partners' Capital [Roll Forward]
Net income	$ 811,306	$ 430,708	$ 432,985
Change in fair value of derivatives and amortization of swap settlements	(9,217)	(13,364)	54,158
Change in fair value of marketable debt securities, net	0	0	233
Issuance of common stock under:
General partner’s stock based compensation, net	9,096	(3,825)	17,309
Sale of common stock by general partner, net	(296)	(347)	(314)
Retirement of common units, net		(95,657)	(189,726)
Changes in the redemption value of redeemable noncontrolling interest	835	(5,055)	7,038
Contributions from noncontrolling interest			125
Issuance of OP units to noncontrolling interest	24,930
Distributions to noncontrolling interest	(81,812)	(31,939)	(30,959)
Redemptions	6,453	609	11,452
Essex Portfolio, L.P.
Increase (Decrease) in Partners' Capital [Roll Forward]
Balance at period beginning	5,593,978	5,895,116	6,176,508
Net income	811,306	430,708	432,985
Reversal of unrealized gains upon the sale of marketable debt securities			(577)
Change in fair value of derivatives and amortization of swap settlements	(9,217)	(13,364)	54,158
Change in fair value of marketable debt securities, net	0	0	233
Issuance of common stock under:
General partner’s stock based compensation, net	9,096	(3,825)	17,309
Sale of common stock by general partner, net	(296)	(347)	(314)
Equity based compensation costs	7,671	12,135	11,446
Retirement of common units, net		(95,657)	(189,726)
Changes in the redemption value of redeemable noncontrolling interest	835	(5,055)	7,038
Contributions from noncontrolling interest			125
Issuance of OP units to noncontrolling interest	24,930
Distributions to noncontrolling interest	(59,317)	(11,060)	(10,935)
Redemptions	6,453	609	11,452
Distributions declared	(652,143)	(614,064)	(591,682)
Balance at period end	$ 5,720,390	$ 5,593,978	$ 5,895,116
Common Equity | General Partner | Essex Portfolio, L.P.
Increase (Decrease) in Partners' Capital [Roll Forward]
Balance at period beginning (in shares)	64,203	64,605	65,248
Balance at period beginning	$ 5,389,190	$ 5,669,906	$ 5,999,155
Net income	$ 741,522	$ 405,825	$ 408,315
Issuance of common stock under:
General partner’s stock based compensation, net (in shares)	70	21	89
General partner’s stock based compensation, net	$ 9,096	$ (3,825)	$ 17,309
Sale of common stock by general partner, net	(296)	(347)	(314)
Equity based compensation costs	7,408	$ 11,723	$ 11,059
Retirement of common units, net (in shares)		(437)	(740)
Retirement of common units, net		$ (95,657)	$ (189,726)
Changes in the redemption value of redeemable noncontrolling interest	$ 373	$ (5,150)	$ 6,230
Redemptions (in shares)	7	14	8
Redemptions	$ 5,254	$ 100	$ 10,464
Distributions declared	$ (629,648)	$ (593,185)	$ (571,658)
Balance at period end (in shares)	64,280	64,203	64,605
Balance at period end	$ 5,512,391	$ 5,389,190	$ 5,669,906
Common Equity | Limited Partner | Essex Portfolio, L.P.
Increase (Decrease) in Partners' Capital [Roll Forward]
Balance at period beginning (in shares)	2,259	2,272	2,282
Balance at period beginning	$ 44,991	$ 51,454	$ 56,502
Net income	26,414	14,284	14,297
Issuance of common stock under:
Equity based compensation costs	263	412	387
Changes in the redemption value of redeemable noncontrolling interest	$ 99	$ 75	$ 386
Issuance of OP units to noncontrolling interest (in shares)	82
Issuance of OP units to noncontrolling interest	$ 24,930
Redemptions (in shares)	(10)	(13)	(10)
Redemptions	$ 784	$ 355	$ 94
Distributions declared	$ (22,495)	$ (20,879)	$ (20,024)
Balance at period end (in shares)	2,331	2,259	2,272
Balance at period end	$ 73,418	$ 44,991	$ 51,454
Accumulated other comprehensive income (loss), net | Essex Portfolio, L.P.
Increase (Decrease) in Partners' Capital [Roll Forward]
Balance at period beginning	38,646	52,010	(1,804)
Reversal of unrealized gains upon the sale of marketable debt securities			(577)
Change in fair value of derivatives and amortization of swap settlements	(9,217)	(13,364)	54,158
Change in fair value of marketable debt securities, net			233
Issuance of common stock under:
Balance at period end	29,429	38,646	52,010
Noncontrolling interest | Essex Portfolio, L.P.
Increase (Decrease) in Partners' Capital [Roll Forward]
Balance at period beginning	121,151	121,746	122,655
Net income	43,370	10,599	10,373
Issuance of common stock under:
Changes in the redemption value of redeemable noncontrolling interest	363	20	422
Contributions from noncontrolling interest			125
Distributions to noncontrolling interest	(59,317)	(11,060)	(10,935)
Redemptions	415	154	894
Balance at period end	$ 105,152	$ 121,151	$ 121,746