EPLP - Consolidated Statements of Cash Flows - USD ($)	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Cash flows from operating activities:
Net income	$ 432,985,000	$ 515,691,000	$ 599,332,000
Adjustments to reconcile net income to net cash provided by operating activities:
Straight-lined rents	3,330,000	9,672,000	(19,426,000)
Depreciation and amortization	539,319,000	520,066,000	525,497,000
Amortization of discount on marketable securities	0	0	(19,075,000)
Amortization of discount and debt financing costs, net	6,712,000	9,538,000	6,674,000
Gain on sale of marketable securities	(12,436,000)	(3,400,000)	(2,131,000)
Income from early redemption of notes receivable	(811,000)	(4,939,000)	0
Provision for credit losses	381,000	141,000	687,000
Unrealized losses (gains) on equity securities recognized through income	57,983,000	(33,104,000)	(12,515,000)
Company's share of gain on the sales of co-investments	0	0	(2,225,000)
Earnings from co-investments	(26,030,000)	(111,721,000)	(64,287,000)
Operating distributions from co-investments	95,256,000	104,833,000	74,419,000
Accrued interest from notes and other receivables	(13,953,000)	(15,902,000)	(3,683,000)
Impairment loss	0	0	1,825,000
Gain on the sale of real estate and land	(94,416,000)	(142,993,000)	(64,967,000)
Equity-based compensation	7,206,000	7,308,000	8,157,000
Loss on early retirement of debt, net	2,000	19,010,000	22,883,000
Gain on remeasurement of co-investment	(17,423,000)	(2,260,000)	(234,694,000)
Changes in operating assets and liabilities:
Prepaid expenses, receivables, operating lease right-of-use assets, and other assets	5,183,000	4,878,000	(3,730,000)
Accounts payable, accrued liabilities, and operating lease liabilities	(17,266,000)	22,298,000	(10,382,000)
Other liabilities	9,627,000	6,143,000	749,000
Net cash provided by operating activities	975,649,000	905,259,000	803,108,000
Additions to real estate:
Acquisitions of real estate and acquisition related capital expenditures, net of cash acquired	(21,870,000)	(153,481,000)	(460,421,000)
Redevelopment	(96,718,000)	(61,671,000)	(48,980,000)
Development acquisitions of and additions to real estate under development	(27,713,000)	(49,784,000)	(108,781,000)
Capital expenditures on rental properties	(163,193,000)	(121,195,000)	(90,085,000)
Investments in notes receivable	(168,095,000)	(245,144,000)	(135,343,000)
Collections of notes and other receivables	412,006,000	104,405,000	98,711,000
Proceeds from insurance for property losses	4,325,000	879,000	723,000
Proceeds from dispositions of real estate	157,985,000	297,454,000	339,165,000
Contributions to co-investments	(163,188,000)	(306,266,000)	(114,017,000)
Changes in refundable deposits	(16,318,000)	(9,486,000)	96,000
Purchases of marketable securities	(18,109,000)	(23,805,000)	(83,379,000)
Sales and maturities of marketable securities	71,222,000	16,577,000	113,465,000
Non-operating distributions from co-investments	175,624,000	154,120,000	71,946,000
Net cash provided by (used in) investing activities	145,958,000	(397,397,000)	(416,900,000)
Cash flows from financing activities:
Proceeds from unsecured debt and mortgage notes	0	745,505,000	1,452,808,000
Payments on unsecured debt and mortgage notes	(64,542,000)	(1,053,501,000)	(916,209,000)
Proceeds from lines of credit	1,376,452,000	1,050,589,000	1,038,426,000
Repayments of lines of credit	(1,665,636,000)	(709,332,000)	(1,093,426,000)
Retirement of common stock	(189,726,000)	(9,172,000)	(269,315,000)
Additions to deferred charges	(2,638,000)	(8,350,000)	(13,772,000)
Payments related to debt prepayment penalties	0	(18,342,000)	(19,605,000)
Net proceeds from issuance of common stock	(314,000)	(455,000)	(296,000)
Net proceeds from stock options exercised	19,525,000	58,497,000	14,865,000
Payments related to tax withholding for share-based compensation	(2,216,000)	(5,445,000)	(5,664,000)
Contributions from noncontrolling interest	125,000	1,900,000	0
Distributions to noncontrolling interest	(30,740,000)	(29,379,000)	(30,990,000)
Redemption of noncontrolling interest	(11,452,000)	(8,457,000)	(3,113,000)
Redemption of redeemable noncontrolling interest	(478,000)	(4,463,000)	(872,000)
Common units distributions paid	(565,924,000)	(542,860,000)	(536,098,000)
Net cash used in financing activities	(1,137,564,000)	(533,265,000)	(383,261,000)
Net (decrease) increase in unrestricted and restricted cash and cash equivalents	(15,957,000)	(25,403,000)	2,947,000
Unrestricted and restricted cash and cash equivalents at beginning of period	58,638,000	84,041,000	81,094,000
Unrestricted and restricted cash and cash equivalents at end of period	42,681,000	58,638,000	84,041,000
Supplemental disclosure of cash flow information:
Cash paid for interest, net of capitalized interest	198,323,000	194,203,000	211,732,000
Interest capitalized	2,272,000	6,153,000	14,615,000
Operating cash flows from operating leases	6,987,000	6,963,000	6,892,000
Supplemental disclosure of noncash investing and financing activities:
Transfers between real estate under development and rental properties, net	100,737,000	328,393,000	253,039,000
Transfer from real estate under development to co-investments	2,276,000	3,068,000	1,739,000
Reclassifications (from) to redeemable noncontrolling interest from additional paid in capital and noncontrolling interest	(7,038,000)	6,890,000	(4,299,000)
Debt assumed in connection with acquisition	21,303,000	0	0
Essex Portfolio, L.P.
Cash flows from operating activities:
Net income	432,985,000	515,691,000	599,332,000
Adjustments to reconcile net income to net cash provided by operating activities:
Straight-lined rents	3,330,000	9,672,000	(19,426,000)
Depreciation and amortization	539,319,000	520,066,000	525,497,000
Amortization of discount on marketable securities	0	0	(19,075,000)
Amortization of discount and debt financing costs, net	6,712,000	9,538,000	6,674,000
Gain on sale of marketable securities	(12,436,000)	(3,400,000)	(2,131,000)
Income from early redemption of notes receivable	(811,000)	(4,939,000)	0
Provision for credit losses	381,000	141,000	687,000
Unrealized losses (gains) on equity securities recognized through income	57,983,000	(33,104,000)	(12,515,000)
Company's share of gain on the sales of co-investments	0	0	(2,225,000)
Earnings from co-investments	(26,030,000)	(111,721,000)	(64,287,000)
Operating distributions from co-investments	95,256,000	104,833,000	74,419,000
Accrued interest from notes and other receivables	(13,953,000)	(15,902,000)	(3,683,000)
Impairment loss	0	0	1,825,000
Gain on the sale of real estate and land	(94,416,000)	(142,993,000)	(64,967,000)
Equity-based compensation	7,206,000	7,308,000	8,157,000
Loss on early retirement of debt, net	2,000	19,010,000	22,883,000
Gain on remeasurement of co-investment	(17,423,000)	(2,260,000)	(234,694,000)
Changes in operating assets and liabilities:
Prepaid expenses, receivables, operating lease right-of-use assets, and other assets	5,183,000	4,878,000	(3,730,000)
Accounts payable, accrued liabilities, and operating lease liabilities	(17,266,000)	22,298,000	(10,382,000)
Other liabilities	9,627,000	6,143,000	749,000
Net cash provided by operating activities	975,649,000	905,259,000	803,108,000
Additions to real estate:
Acquisitions of real estate and acquisition related capital expenditures, net of cash acquired	(21,870,000)	(153,481,000)	(460,421,000)
Redevelopment	(96,718,000)	(61,671,000)	(48,980,000)
Development acquisitions of and additions to real estate under development	(27,713,000)	(49,784,000)	(108,781,000)
Capital expenditures on rental properties	(163,193,000)	(121,195,000)	(90,085,000)
Investments in notes receivable	(168,095,000)	(245,144,000)	(135,343,000)
Collections of notes and other receivables	412,006,000	104,405,000	98,711,000
Proceeds from insurance for property losses	4,325,000	879,000	723,000
Proceeds from dispositions of real estate	157,985,000	297,454,000	339,165,000
Contributions to co-investments	(163,188,000)	(306,266,000)	(114,017,000)
Changes in refundable deposits	(16,318,000)	(9,486,000)	96,000
Purchases of marketable securities	(18,109,000)	(23,805,000)	(83,379,000)
Sales and maturities of marketable securities	71,222,000	16,577,000	113,465,000
Non-operating distributions from co-investments	175,624,000	154,120,000	71,946,000
Net cash provided by (used in) investing activities	145,958,000	(397,397,000)	(416,900,000)
Cash flows from financing activities:
Proceeds from unsecured debt and mortgage notes	0	745,505,000	1,452,808,000
Payments on unsecured debt and mortgage notes	(64,542,000)	(1,053,501,000)	(916,209,000)
Proceeds from lines of credit	1,376,452,000	1,050,589,000	1,038,426,000
Repayments of lines of credit	(1,665,636,000)	(709,332,000)	(1,093,426,000)
Retirement of common stock	(189,726,000)	(9,172,000)	(269,315,000)
Additions to deferred charges	(2,638,000)	(8,350,000)	(13,772,000)
Payments related to debt prepayment penalties	0	(18,342,000)	(19,605,000)
Net proceeds from issuance of common stock	(314,000)	(455,000)	(296,000)
Net proceeds from stock options exercised	19,525,000	58,497,000	14,865,000
Payments related to tax withholding for share-based compensation	(2,216,000)	(5,445,000)	(5,664,000)
Contributions from noncontrolling interest	125,000	1,900,000	0
Distributions to noncontrolling interest	(8,450,000)	(8,369,000)	(8,409,000)
Redemption of noncontrolling interest	(11,452,000)	(8,457,000)	(3,113,000)
Redemption of redeemable noncontrolling interest	(478,000)	(4,463,000)	(872,000)
Common units distributions paid	(588,214,000)	(563,870,000)	(558,679,000)
Net cash used in financing activities	(1,137,564,000)	(533,265,000)	(383,261,000)
Net (decrease) increase in unrestricted and restricted cash and cash equivalents	(15,957,000)	(25,403,000)	2,947,000
Unrestricted and restricted cash and cash equivalents at beginning of period	58,638,000	84,041,000	81,094,000
Unrestricted and restricted cash and cash equivalents at end of period	42,681,000	58,638,000	84,041,000
Supplemental disclosure of cash flow information:
Cash paid for interest, net of capitalized interest	198,323,000	194,203,000	211,732,000
Interest capitalized	2,272,000	6,153,000	14,615,000
Operating cash flows from operating leases	6,987,000	6,963,000	6,892,000
Supplemental disclosure of noncash investing and financing activities:
Transfers between real estate under development and rental properties, net	100,737,000	328,393,000	253,039,000
Transfer from real estate under development to co-investments	2,276,000	3,068,000	1,739,000
Reclassifications (from) to redeemable noncontrolling interest from additional paid in capital and noncontrolling interest	(7,038,000)	6,890,000	(4,299,000)
Debt assumed in connection with acquisition	$ 21,303,000	$ 0	$ 0