Condensed Consolidated Statements of Income and Comprehensive Income (Unaudited) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Revenues:
Rental and other property	$ 360,620	$ 368,464	$ 1,062,253	$ 1,126,363
Management and other fees from affiliates	2,237	2,347	6,707	7,312
Revenues	362,857	370,811	1,068,960	1,133,675
Expenses:
Property operating, excluding real estate taxes	69,529	68,037	197,895	197,310
Real estate taxes	45,802	44,358	135,408	132,364
Corporate-level property management expenses	9,068	8,619	27,120	26,024
Depreciation and amortization	130,564	130,202	387,887	395,370
General and administrative	12,712	13,310	34,746	42,244
Expensed acquisition and investment related costs	108	2	164	104
Total expenses	267,783	264,528	783,220	793,416
Gain on sale of real estate and land	42,897	22,654	142,993	39,251
Earnings from operations	137,971	128,937	428,733	379,510
Interest expense	(50,019)	(55,430)	(152,639)	(165,024)
Total return swap income	2,660	2,977	8,137	7,749
Interest and other income	11,998	6,512	48,756	12,696
Equity income from co-investments	25,433	14,960	60,692	53,514
Deferred tax expense on unrealized gain on unconsolidated co-investment	(3,041)	0	(5,391)	(1,636)
Loss on early retirement of debt, net	0	(19,114)	(18,982)	(23,820)
Gain on remeasurement of co-investment	0	0	2,260	234,694
Net income (loss)	125,002	78,842	371,566	497,683
Net income attributable to noncontrolling interest	(6,612)	(5,181)	(19,886)	(24,558)
Net income available to common stockholders	118,390	73,661	351,680	473,125
Comprehensive income	125,829	80,818	377,529	494,668
Comprehensive income attributable to noncontrolling interest	(6,639)	(5,247)	(20,088)	(24,455)
Comprehensive income attributable to controlling interest	$ 119,190	$ 75,571	$ 357,441	$ 470,213
Basic:
Net income available to common stockholders/unitholders (in dollars per share)	$ 1.82	$ 1.13	$ 5.41	$ 7.22
Weighted average number of shares/common units outstanding during the period (in shares)	65,048,486	65,232,837	65,013,477	65,561,820
Diluted:
Net income available to common stockholders/unitholders (in dollars per share)	$ 1.82	$ 1.13	$ 5.40	$ 7.21
Weighted average number of shares/common units outstanding during the period (in shares)	65,147,781	65,241,428	65,075,174	65,676,093
Essex Portfolio, L.P.
Revenues:
Rental and other property	$ 360,620	$ 368,464	$ 1,062,253	$ 1,126,363
Management and other fees from affiliates	2,237	2,347	6,707	7,312
Revenues	362,857	370,811	1,068,960	1,133,675
Expenses:
Property operating, excluding real estate taxes	69,529	68,037	197,895	197,310
Real estate taxes	45,802	44,358	135,408	132,364
Corporate-level property management expenses	9,068	8,619	27,120	26,024
Depreciation and amortization	130,564	130,202	387,887	395,370
General and administrative	12,712	13,310	34,746	42,244
Expensed acquisition and investment related costs	108	2	164	104
Total expenses	267,783	264,528	783,220	793,416
Gain on sale of real estate and land	42,897	22,654	142,993	39,251
Earnings from operations	137,971	128,937	428,733	379,510
Interest expense	(50,019)	(55,430)	(152,639)	(165,024)
Total return swap income	2,660	2,977	8,137	7,749
Interest and other income	11,998	6,512	48,756	12,696
Equity income from co-investments	25,433	14,960	60,692	53,514
Deferred tax expense on unrealized gain on unconsolidated co-investment	(3,041)	0	(5,391)	(1,636)
Loss on early retirement of debt, net	0	(19,114)	(18,982)	(23,820)
Gain on remeasurement of co-investment	0	0	2,260	234,694
Net income (loss)	125,002	78,842	371,566	497,683
Net income attributable to noncontrolling interest	(2,444)	(2,588)	(7,483)	(8,015)
Net income available to common stockholders	122,558	76,254	364,083	489,668
Comprehensive income	125,829	80,818	377,529	494,668
Comprehensive income attributable to noncontrolling interest	(2,444)	(2,588)	(7,483)	(8,015)
Comprehensive income attributable to controlling interest	$ 123,385	$ 78,230	$ 370,046	$ 486,653
Basic:
Net income available to common stockholders/unitholders (in dollars per share)	$ 1.82	$ 1.13	$ 5.41	$ 7.22
Weighted average number of shares/common units outstanding during the period (in shares)	67,336,164	67,528,346	67,307,259	67,858,961
Diluted:
Net income available to common stockholders/unitholders (in dollars per share)	$ 1.82	$ 1.13	$ 5.40	$ 7.21
Weighted average number of shares/common units outstanding during the period (in shares)	67,435,459	67,536,937	67,368,956	67,973,234