EPLP - Condensed Consolidated Statements of Capital for the three and three months ended March 31, 2023 and 2022 (Unaudited) - USD ($) shares in Thousands, $ in Thousands	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Increase (Decrease) in Partners' Capital [Roll Forward]
Net income	$ 161,594	$ 78,375
Change in fair value of derivatives and amortization of swap settlements	(10,294)	20,083
Change in fair value of marketable debt securities, net		398
Issuance of common units under:
Sale of common stock by general partner, net	(72)	(141)
Retirement of common units, net	(95,657)
Changes in the redemption value of redeemable noncontrolling interest	(3,058)	(5,072)
Contributions from noncontrolling interest		125
Distributions to noncontrolling interest	(7,977)	(7,619)
Redemptions	(173)	(26)
Essex Portfolio, L.P.
Increase (Decrease) in Partners' Capital [Roll Forward]
Balance at period beginning	5,895,116	6,176,508
Net income	161,594	78,375
Change in fair value of derivatives and amortization of swap settlements	(10,294)	20,083
Change in fair value of marketable debt securities, net		398
Issuance of common units under:
General partner's stock based compensation, net		16,867
Sale of common stock by general partner, net	(72)	(141)
Equity based compensation costs	5,664	2,463
Retirement of common units, net	(95,657)
Changes in the redemption value of redeemable noncontrolling interest	(3,058)	(5,072)
Contributions from noncontrolling interest		125
Distributions to noncontrolling interest	(2,755)	(2,597)
Redemptions	(173)	(26)
Distributions declared	(153,508)	(148,776)
Balance at period end	$ 5,796,857	$ 6,138,207
Essex Portfolio, L.P. | Common Equity | General Partner
Increase (Decrease) in Partners' Capital [Roll Forward]
Balance at period beginning (in shares)	64,605	65,248
Balance at period beginning	$ 5,669,906	$ 5,999,155
Net income	$ 153,532	$ 73,254
Issuance of common units under:
General partner's stock based compensation, net (in shares)	2	84
General partner's stock based compensation, net		$ 16,867
Sale of common stock by general partner, net	$ (72)	(141)
Equity based compensation costs	$ 5,472	2,380
Retirement of common units, net (in shares)	(437)
Retirement of common units, net	$ (95,657)
Changes in the redemption value of redeemable noncontrolling interest	$ (2,927)	(5,014)
Redemptions (in shares)	12
Redemptions	$ 291	(1)
Distributions declared	$ (148,286)	$ (143,754)
Balance at period end (in shares)	64,182	65,332
Balance at period end	$ 5,582,259	$ 5,942,746
Essex Portfolio, L.P. | Common Equity | Limited Partners
Increase (Decrease) in Partners' Capital [Roll Forward]
Balance at period beginning (in shares)	2,272	2,282
Balance at period beginning	$ 51,454	$ 56,502
Net income	5,404	2,563
Issuance of common units under:
Equity based compensation costs	192	83
Changes in the redemption value of redeemable noncontrolling interest	$ (106)	(14)
Redemptions (in shares)	(11)
Redemptions	$ (337)
Distributions declared	$ (5,222)	$ (5,022)
Balance at period end (in shares)	2,261	2,282
Balance at period end	$ 51,385	$ 54,112
Essex Portfolio, L.P. | Accumulated other comprehensive income, net
Increase (Decrease) in Partners' Capital [Roll Forward]
Balance at period beginning	52,010	(1,804)
Change in fair value of derivatives and amortization of swap settlements	(10,294)	20,083
Change in fair value of marketable debt securities, net		398
Issuance of common units under:
Balance at period end	41,716	18,677
Essex Portfolio, L.P. | Noncontrolling interest
Increase (Decrease) in Partners' Capital [Roll Forward]
Balance at period beginning	121,746	122,655
Net income	2,658	2,558
Issuance of common units under:
Changes in the redemption value of redeemable noncontrolling interest	(25)	(44)
Contributions from noncontrolling interest		125
Distributions to noncontrolling interest	(2,755)	(2,597)
Redemptions	(127)	(25)
Balance at period end	$ 121,497	$ 122,672