Condensed Consolidated Balance Sheets (Unaudited) - USD ($) $ in Thousands	Jun. 30, 2021	Dec. 31, 2020
Rental properties:
Land and land improvements	$ 2,923,508	$ 2,929,009
Buildings and improvements	12,373,299	12,132,736
Total rental properties	15,296,807	15,061,745
Less: accumulated depreciation	(4,392,056)	(4,133,959)
Net real estate	10,904,751	10,927,786
Real estate under development	208,330	386,047
Co-investments	1,037,270	1,018,010
Real estate held for sale	0	57,938
Total real estate	12,150,351	12,389,781
Cash and cash equivalents-unrestricted	48,155	73,629
Cash and cash equivalents-restricted	10,021	10,412
Marketable securities, net of allowance for credit losses of zero as of both June 30, 2021 and December 31, 2020	175,782	147,768
Notes and other receivables, net of allowance for credit losses of $0.7 million and $0.8 million as of June 30, 2021 and December 31, 2020, respectively (includes related party receivables of $57.9 million and $4.7 million as of June 30, 2021 and December 31, 2020, respectively)	238,855	195,104
Operating lease right-of-use assets	70,551	72,143
Prepaid expenses and other assets	53,484	47,340
Total assets	12,747,199	12,936,177
LIABILITIES AND EQUITY/CAPITAL
Unsecured debt, net	5,403,874	5,607,985
Mortgage notes payable, net	641,274	643,550
Lines of credit	85,000	0
Accounts payable and accrued liabilities	160,121	152,855
Construction payable	31,960	31,417
Dividends payable	142,810	141,917
Operating lease liabilities	72,363	74,037
Liabilities associated with real estate held for sale	0	29,845
Other liabilities	38,068	39,140
Total liabilities	6,575,470	6,720,746
Commitments and contingencies
Redeemable noncontrolling interest	35,026	32,239
Equity/Capital:
Common stock; $0.0001 par value, 670,000,000 shares authorized; 65,003,996 and 64,999,015 shares issued and outstanding, respectively	7	6
Additional paid-in capital	6,862,879	6,876,326
Distributions in excess of accumulated earnings	(899,663)	(861,193)
Limited Partners:
Accumulated other comprehensive loss, net	(9,768)	(14,729)
Total stockholders' equity	5,953,455	6,000,410
Noncontrolling interest	183,248	182,782
Total equity	6,136,703	6,183,192
Total liabilities and equity/capital	12,747,199	12,936,177
Essex Portfolio, L.P.
Rental properties:
Land and land improvements	2,923,508	2,929,009
Buildings and improvements	12,373,299	12,132,736
Total rental properties	15,296,807	15,061,745
Less: accumulated depreciation	(4,392,056)	(4,133,959)
Net real estate	10,904,751	10,927,786
Real estate under development	208,330	386,047
Co-investments	1,037,270	1,018,010
Real estate held for sale	0	57,938
Total real estate	12,150,351	12,389,781
Cash and cash equivalents-unrestricted	48,155	73,629
Cash and cash equivalents-restricted	10,021	10,412
Marketable securities, net of allowance for credit losses of zero as of both June 30, 2021 and December 31, 2020	175,782	147,768
Notes and other receivables, net of allowance for credit losses of $0.7 million and $0.8 million as of June 30, 2021 and December 31, 2020, respectively (includes related party receivables of $57.9 million and $4.7 million as of June 30, 2021 and December 31, 2020, respectively)	238,855	195,104
Operating lease right-of-use assets	70,551	72,143
Prepaid expenses and other assets	53,484	47,340
Total assets	12,747,199	12,936,177
LIABILITIES AND EQUITY/CAPITAL
Unsecured debt, net	5,403,874	5,607,985
Mortgage notes payable, net	641,274	643,550
Lines of credit	85,000	0
Accounts payable and accrued liabilities	160,121	152,855
Construction payable	31,960	31,417
Dividends payable	142,810	141,917
Operating lease liabilities	72,363	74,037
Liabilities associated with real estate held for sale	0	29,845
Other liabilities	38,068	39,140
Total liabilities	6,575,470	6,720,746
Commitments and contingencies
Redeemable noncontrolling interest	35,026	32,239
General Partner:
Common equity (65,003,996 and 64,999,015 units issued and outstanding, respectively)	5,963,223	6,015,139
Limited Partners:
Common equity (2,293,760 and 2,294,760 units issued and outstanding, respectively)	56,950	58,184
Accumulated other comprehensive loss, net	(6,167)	(11,303)
Total partners' capital	6,014,006	6,062,020
Noncontrolling interest	122,697	121,172
Total capital	6,136,703	6,183,192
Total liabilities and equity/capital	$ 12,747,199	$ 12,936,177