CONSOLIDATED STATEMENTS OF OPERATIONS OF ERP OPERATING LIMITED PARTNERSHIP (Unaudited) - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
REVENUES
Rental income	$ 623,206	$ 622,433	$ 1,818,867	$ 1,958,270
EXPENSES
Property and maintenance	116,461	113,065	341,261	333,333
Real estate taxes and insurance	96,909	95,273	297,780	288,043
Property management	23,772	20,196	74,357	71,513
General and administrative	13,041	10,859	43,102	37,212
Depreciation	215,397	200,605	616,032	619,003
Total expenses	465,580	439,998	1,372,532	1,349,104
Net gain (loss) on sales of real estate properties	363,928	(25)	587,623	352,218
Operating income	521,554	182,410	1,033,958	961,384
Interest and other income	973	535	25,293	4,006
Other expenses	(3,456)	(4,097)	(10,908)	(8,324)
Interest:
Expense incurred, net	(68,251)	(80,874)	(202,733)	(248,349)
Amortization of deferred financing costs	(2,048)	(2,101)	(6,172)	(6,253)
Income before income and other taxes, income (loss) from investments in unconsolidated entities and net gain (loss) on sales of land parcels	448,772	95,873	839,438	702,464
Income and other tax (expense) benefit	(284)	(262)	(679)	(502)
Income (loss) from investments in unconsolidated entities	(1,156)	(246)	(3,028)	(2,445)
Net gain (loss) on sales of land parcels			5
Net income	447,332	95,365	835,736	699,517
Partially Owned Properties	(534)	(703)	(1,957)	(14,113)
Net income attributable to controlling interests	$ 431,951	$ 91,286	$ 805,876	$ 660,780
Earnings per Unit – basic:
Net income available to Units	$ 1.15	$ 0.24	$ 2.15	$ 1.77
Earnings per Unit – diluted:
Net income available to Units	$ 1.15	$ 0.24	$ 2.14	$ 1.77
Weighted average Units outstanding	388,374	385,652	387,642	385,973
ERPOP [Member]
REVENUES
Rental income	$ 623,206	$ 622,433	$ 1,818,867	$ 1,958,270
EXPENSES
Property and maintenance	116,461	113,065	341,261	333,333
Real estate taxes and insurance	96,909	95,273	297,780	288,043
Property management	23,772	20,196	74,357	71,513
General and administrative	13,041	10,859	43,102	37,212
Depreciation	215,397	200,605	616,032	619,003
Total expenses	465,580	439,998	1,372,532	1,349,104
Net gain (loss) on sales of real estate properties	363,928	(25)	587,623	352,218
Operating income	521,554	182,410	1,033,958	961,384
Interest and other income	973	535	25,293	4,006
Other expenses	(3,456)	(4,097)	(10,908)	(8,324)
Interest:
Expense incurred, net	(68,251)	(80,874)	(202,733)	(248,349)
Amortization of deferred financing costs	(2,048)	(2,101)	(6,172)	(6,253)
Income before income and other taxes, income (loss) from investments in unconsolidated entities and net gain (loss) on sales of land parcels	448,772	95,873	839,438	702,464
Income and other tax (expense) benefit	(284)	(262)	(679)	(502)
Income (loss) from investments in unconsolidated entities	(1,156)	(246)	(3,028)	(2,445)
Net gain (loss) on sales of land parcels			5
Net income	447,332	95,365	835,736	699,517
Partially Owned Properties	(534)	(703)	(1,957)	(14,113)
Net income attributable to controlling interests	446,798	94,662	833,779	685,404
ALLOCATION OF NET INCOME:
Preference Units	773	773	2,318	2,318
General Partner	431,178	90,513	803,558	658,462
Limited Partners	14,847	3,376	27,903	24,624
Net income available to Units	$ 446,025	$ 93,889	$ 831,461	$ 683,086
Earnings per Unit – basic:
Net income available to Units	$ 1.15	$ 0.24	$ 2.15	$ 1.77
Weighted average Units outstanding	386,327	384,871	385,841	384,759
Earnings per Unit – diluted:
Net income available to Units	$ 1.15	$ 0.24	$ 2.14	$ 1.77
Weighted average Units outstanding	388,374	385,652	387,642	385,973