EPLP - Condensed Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended		12 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021	Dec. 31, 2021
Cash flows from operating activities:
Net income	$ 98,700	$ 125,002	$ 238,765	$ 371,566
Adjustments to reconcile net income to net cash provided by operating activities:
Straight-lined rents			5,529	8,734
Depreciation and amortization			403,561	387,887
Amortization of discount and debt financing costs, net			4,916	7,987
Gain on sale of marketable securities			(12,430)	(2,499)
Income from early redemption of notes receivable			0	(4,747)
Provision for credit losses			64	(110)
Unrealized losses (gains) on equity securities recognized through income			63,556	(23,772)
Earnings from co-investments			(23,756)	(60,692)
Operating distributions from co-investments			86,854	78,360
Accrued interest from notes and other receivables			(10,748)	(12,253)
Gain on the sale of real estate and land			0	(142,993)
Equity-based compensation			6,589	5,399
Loss on early retirement of debt, net	2	0	2	18,982
Gain on remeasurement of co-investment	(17,423)	0	(17,423)	(2,260)
Changes in operating assets and liabilities:
Prepaid expenses, receivables, operating lease right-of-use assets, and other assets			15,406	2,470
Accounts payable, accrued liabilities, and operating lease liabilities			38,948	62,699
Other liabilities			8,902	5,119
Net cash provided by operating activities			808,735	699,877
Additions to real estate:
Acquisitions of real estate and acquisition related capital expenditures, net of cash acquired			(21,759)	(105,469)
Redevelopment			(67,974)	(39,092)
Development acquisitions of and additions to real estate under development			(22,754)	(45,381)
Capital expenditures on rental properties			(107,105)	(81,063)
Investments in notes receivable			(160,013)	(102,012)
Collections of notes and other receivables			303,088	88,744
Proceeds from insurance for property losses			4,325	591
Proceeds from dispositions of real estate			0	297,454
Contributions to co-investments			(159,461)	(223,175)
Changes in refundable deposits			(16,318)	(8,356)
Purchases of marketable securities			(12,760)	(23,740)
Sales and maturities of marketable securities			30,025	14,995
Non-operating distributions from co-investments			161,324	131,297
Net cash used in investing activities			(69,382)	(95,207)
Cash flows from financing activities:
Proceeds from unsecured debt and mortgage notes			0	745,505
Payments on unsecured debt and mortgage notes			(24,103)	(952,608)
Proceeds from lines of credit			1,053,663	601,435
Repayments of lines of credit			(1,175,440)	(558,773)
Retirement of common stock			(157,951)	(9,172)
Additions to deferred charges			(140)	(8,237)
Payments related to debt prepayment penalties			0	(18,342)
Net proceeds from issuance of common stock			(314)	(202)
Net proceeds from stock options exercised			19,410	17,847
Payments related to tax withholding for share-based compensation			(2,216)	(5,445)
Contributions from noncontrolling interest			125	1,900
Distributions to noncontrolling interest			(22,606)	(21,979)
Redemption of noncontrolling interest			(10,929)	(8,407)
Redemption of redeemable noncontrolling interests			478	4,463
Common stock dividends paid			(423,443)	(406,818)
Net cash used in financing activities			(744,422)	(627,759)
Net decrease in unrestricted and restricted cash and cash equivalents			(5,069)	(23,089)
Unrestricted and restricted cash and cash equivalents at beginning of period			58,638	84,041	$ 84,041
Unrestricted and restricted cash and cash equivalents at end of period	53,569	60,952	53,569	60,952	58,638
Supplemental disclosure of cash flow information:
Cash paid for interest (net of $1.9 million and $5.0 million capitalized in 2022 and 2021, respectively)			149,970	147,371
Operating cash flows from operating leases			5,225	5,225
Supplemental disclosure of noncash investing and financing activities:
Transfers between real estate under development and rental properties, net			98,024	222,055
Transfer from real estate under development to co-investments			2,090	1,853
Reclassifications (from) to redeemable noncontrolling interest from general and limited partner capital and noncontrolling interest			(4,950)	4,922
Debt assumed in connection with acquisition			21,303	0
Essex Portfolio, L.P.
Cash flows from operating activities:
Net income	98,700	125,002	238,765	371,566
Adjustments to reconcile net income to net cash provided by operating activities:
Straight-lined rents			5,529	8,734
Depreciation and amortization			403,561	387,887
Amortization of discount and debt financing costs, net			4,916	7,987
Gain on sale of marketable securities			(12,430)	(2,499)
Income from early redemption of notes receivable			0	(4,747)
Provision for credit losses			64	(110)
Unrealized losses (gains) on equity securities recognized through income			63,556	(23,772)
Earnings from co-investments			(23,756)	(60,692)
Operating distributions from co-investments			86,854	78,360
Accrued interest from notes and other receivables			(10,748)	(12,253)
Gain on the sale of real estate and land			0	(142,993)
Equity-based compensation			6,589	5,399
Loss on early retirement of debt, net	2	0	2	18,982
Gain on remeasurement of co-investment	(17,423)	0	(17,423)	(2,260)
Changes in operating assets and liabilities:
Prepaid expenses, receivables, operating lease right-of-use assets, and other assets			15,406	2,470
Accounts payable, accrued liabilities, and operating lease liabilities			38,948	62,699
Other liabilities			8,902	5,119
Net cash provided by operating activities			808,735	699,877
Additions to real estate:
Acquisitions of real estate and acquisition related capital expenditures, net of cash acquired			(21,759)	(105,469)
Redevelopment			(67,974)	(39,092)
Development acquisitions of and additions to real estate under development			(22,754)	(45,381)
Capital expenditures on rental properties			(107,105)	(81,063)
Investments in notes receivable			(160,013)	(102,012)
Collections of notes and other receivables			303,088	88,744
Proceeds from insurance for property losses			4,325	591
Proceeds from dispositions of real estate			0	297,454
Contributions to co-investments			(159,461)	(223,175)
Changes in refundable deposits			(16,318)	(8,356)
Purchases of marketable securities			(12,760)	(23,740)
Sales and maturities of marketable securities			30,025	14,995
Non-operating distributions from co-investments			161,324	131,297
Net cash used in investing activities			(69,382)	(95,207)
Cash flows from financing activities:
Proceeds from unsecured debt and mortgage notes			0	745,505
Payments on unsecured debt and mortgage notes			(24,103)	(952,608)
Proceeds from lines of credit			1,053,663	601,435
Repayments of lines of credit			(1,175,440)	(558,773)
Retirement of common stock			(157,951)	(9,172)
Additions to deferred charges			(140)	(8,237)
Payments related to debt prepayment penalties			0	(18,342)
Net proceeds from issuance of common stock			(314)	(202)
Net proceeds from stock options exercised			19,410	17,847
Payments related to tax withholding for share-based compensation			(2,216)	(5,445)
Contributions from noncontrolling interest			125	1,900
Distributions to noncontrolling interest			(6,380)	(6,323)
Redemption of noncontrolling interest			(10,929)	(8,407)
Redemption of redeemable noncontrolling interests			478	4,463
Common stock dividends paid			(439,669)	(422,474)
Net cash used in financing activities			(744,422)	(627,759)
Net decrease in unrestricted and restricted cash and cash equivalents			(5,069)	(23,089)
Unrestricted and restricted cash and cash equivalents at beginning of period			58,638	84,041	84,041
Unrestricted and restricted cash and cash equivalents at end of period	$ 53,569	$ 60,952	53,569	60,952	$ 58,638
Supplemental disclosure of cash flow information:
Cash paid for interest (net of $1.9 million and $5.0 million capitalized in 2022 and 2021, respectively)			149,970	147,371
Operating cash flows from operating leases			5,225	5,225
Supplemental disclosure of noncash investing and financing activities:
Transfers between real estate under development and rental properties, net			98,024	222,055
Transfer from real estate under development to co-investments			2,090	1,853
Reclassifications (from) to redeemable noncontrolling interest from general and limited partner capital and noncontrolling interest			(4,950)	4,922
Debt assumed in connection with acquisition			$ 21,303	$ 0