EPLP - Consolidated Statements of Capital - USD ($) shares in Thousands, $ in Thousands	12 Months Ended
	Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023
Increase (Decrease) in Partners' Capital [Roll Forward]
Net income	$ 702,773	$ 811,306	$ 430,708
Reversal of unrealized gains upon the sale of marketable debt securities	(27)	0	0
Change in fair value of derivatives and amortization of swap settlements	(19,508)	(9,217)	(13,364)
Change in fair value of marketable debt securities, net	244	0	0
Issuance of common stock under:
General partner’s stock based compensation, net	816	9,096	(3,825)
Sale of common stock by general partner, net	(391)	(296)	(347)
Retirement of common units, net			(95,657)
Changes in the redemption value of redeemable noncontrolling interest	2,586	835	(5,055)
Issuance of OP units to noncontrolling interest		24,930
Distributions to noncontrolling interest	(32,801)	(81,812)	(31,939)
Redemptions of noncontrolling interest	(13,475)	(6,453)	(609)
Accumulated other comprehensive income (loss), net
Increase (Decrease) in Partners' Capital [Roll Forward]
Reversal of unrealized gains upon the sale of marketable debt securities	(26)
Change in fair value of derivatives and amortization of swap settlements	(18,818)	(8,901)	(12,910)
Change in fair value of marketable debt securities, net	236
Essex Portfolio, L.P.
Increase (Decrease) in Partners' Capital [Roll Forward]
Beginning balance	5,720,390	5,593,978	5,895,116
Net income	702,773	811,306	430,708
Reversal of unrealized gains upon the sale of marketable debt securities	(27)	0	0
Change in fair value of derivatives and amortization of swap settlements	(19,508)	(9,217)	(13,364)
Change in fair value of marketable debt securities, net	244	0	0
Issuance of common stock under:
General partner’s stock based compensation, net	816	9,096	(3,825)
Sale of common stock by general partner, net	(391)	(296)	(347)
Equity based compensation costs	10,224	7,671	12,135
Retirement of common units, net			(95,657)
Changes in the redemption value of redeemable noncontrolling interest	2,586	835	(5,055)
Issuance of OP units to noncontrolling interest		24,930
Distributions to noncontrolling interest	(9,551)	(59,317)	(11,060)
Redemptions of noncontrolling interest	(13,475)	(6,453)	(609)
Distributions declared	(685,449)	(652,143)	(614,064)
Ending balance	5,708,632	$ 5,720,390	$ 5,593,978
Essex Portfolio, L.P. | Accumulated other comprehensive income (loss), net
Increase (Decrease) in Partners' Capital [Roll Forward]
Reversal of unrealized gains upon the sale of marketable debt securities	$ (27)
Essex Portfolio, L.P. | Common Equity | General Partner
Increase (Decrease) in Partners' Capital [Roll Forward]
Beginning balance (in shares)	64,280	64,203	64,605
Beginning balance	$ 5,512,391	$ 5,389,190	$ 5,669,906
Net income	$ 669,666	$ 741,522	$ 405,825
Issuance of common stock under:
General partner’s stock based compensation, net (in shares)	81	70	21
General partner’s stock based compensation, net	$ 816	$ 9,096	$ (3,825)
Sale of common stock by general partner, net	(391)	(296)	(347)
Equity based compensation costs	$ 9,879	7,408	$ 11,723
Retirement of common units, net (in shares)			(437)
Retirement of common units, net			$ (95,657)
Changes in the redemption value and redemptions of redeemable noncontrolling interest (in shares)	6
Changes in the redemption value of redeemable noncontrolling interest	$ 2,805	$ 373	$ (5,150)
Redemptions (in shares)	75	7	14
Redemptions of noncontrolling interest	$ 2,358	$ (5,254)	$ (100)
Distributions declared	$ (662,199)	$ (629,648)	$ (593,185)
Ending balance (in shares)	64,442	64,280	64,203
Ending balance	$ 5,535,325	$ 5,512,391	$ 5,389,190
Essex Portfolio, L.P. | Common Equity | Limited Partners
Increase (Decrease) in Partners' Capital [Roll Forward]
Beginning balance (in shares)	2,331	2,259	2,272
Beginning balance	$ 73,418	$ 44,991	$ 51,454
Net income	23,649	26,414	14,284
Issuance of common stock under:
Equity based compensation costs	$ 345	263	412
Changes in the redemption value and redemptions of redeemable noncontrolling interest (in shares)	(6)
Changes in the redemption value of redeemable noncontrolling interest	$ (441)	$ 99	$ 75
Issuance of OP units to noncontrolling interest (in shares)		82
Issuance of OP units to noncontrolling interest		$ 24,930
Redemptions (in shares)	(75)	(10)	(13)
Redemptions of noncontrolling interest	$ (11,845)	$ (784)	$ (355)
Distributions declared	$ (23,250)	$ (22,495)	$ (20,879)
Ending balance (in shares)	2,250	2,331	2,259
Ending balance	$ 61,876	$ 73,418	$ 44,991
Essex Portfolio, L.P. | Accumulated other comprehensive income (loss), net
Increase (Decrease) in Partners' Capital [Roll Forward]
Beginning balance	29,429	38,646	52,010
Change in fair value of derivatives and amortization of swap settlements	(19,508)	(9,217)	(13,364)
Change in fair value of marketable debt securities, net	244
Issuance of common stock under:
Ending balance	10,138	29,429	38,646
Essex Portfolio, L.P. | Noncontrolling interest
Increase (Decrease) in Partners' Capital [Roll Forward]
Beginning balance	105,152	121,151	121,746
Net income	9,458	43,370	10,599
Issuance of common stock under:
Changes in the redemption value of redeemable noncontrolling interest	222	363	20
Distributions to noncontrolling interest	(9,551)	(59,317)	(11,060)
Redemptions of noncontrolling interest	(3,988)	(415)	(154)
Ending balance	$ 101,293	$ 105,152	$ 121,151