CONSOLIDATED STATEMENTS OF OPERATIONS OF ERP OPERATING LIMITED PARTNERSHIP (Unaudited) (USD $) Share data in Thousands, except Per Share data, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2013
REVENUES
Rental income	$ 649,766,000	$ 614,544,000	$ 1,280,491,000	$ 1,117,106,000
Fee and asset management	2,802,000	2,673,000	5,519,000	4,833,000
Total revenues	652,568,000	617,217,000	1,286,010,000	1,121,939,000
EXPENSES
Property and maintenance	115,388,000	113,501,000	240,961,000	212,030,000
Real estate taxes and insurance	83,055,000	76,742,000	165,149,000	141,837,000
Property management	20,555,000	22,031,000	42,673,000	44,520,000
Fee and asset management	1,378,000	1,577,000	3,040,000	3,223,000
Depreciation	190,136,000	323,304,000	375,303,000	519,526,000
General and administrative	13,752,000	16,085,000	31,328,000	32,580,000
Total expenses	424,264,000	553,240,000	858,454,000	953,716,000
Operating Income	228,304,000	63,977,000	427,556,000	168,223,000
Interest and other income	2,032,000	432,000	2,637,000	752,000
Other expenses	(1,533,000)	(1,631,000)	(2,190,000)	(23,350,000)
Interest:
Expense incurred, net	(115,924,000)	(122,950,000)	(228,973,000)	(317,417,000)
Amortization of deferred financing costs	(3,134,000)	(4,353,000)	(5,926,000)	(11,301,000)
Income (loss) before income and other taxes, (loss) from investments in unconsolidated entities, net gain on sales of land parcels, discontinued operations and net gain on sales of real estate properties	109,745,000	(64,525,000)	193,104,000	(183,093,000)
Income and other tax (expense) benefit	(646,000)	(428,000)	(886,000)	(833,000)
(Loss) from investments in unconsolidated entities	(7,616,000)	(8,174,000)	(9,025,000)	(54,540,000)
Net gain on sales of land parcels	824,000	14,616,000	794,000	14,616,000
Income (loss) from continuing operations	102,307,000	(58,511,000)	183,987,000	(223,850,000)
Discontinued operations, net	510,000	395,243,000	1,562,000	1,621,616,000
Income before net gain on sales of real estate properties	102,817,000	336,732,000	185,549,000	1,397,766,000
Net gain on sales of real estate properties	14,903,000	0	14,903,000	0
Net income	117,720,000	336,732,000	200,452,000	1,397,766,000
Net (income) loss attributable to Noncontrolling Interests – Partially Owned Properties	(588,000)	815,000	(1,092,000)	790,000
Net income attributable to controlling interests	112,690,000	324,759,000	191,825,000	1,342,445,000
Earnings per Unit - basic:
Income (loss) from continuing operations available to Units	$ 0.308	$ (0.157)	$ 0.522	$ (0.620)
Net income available to Units	$ 0.309	$ 0.900	$ 0.526	$ 3.844
Earnings per Unit - diluted:
Income (loss) from continuing operations available to Units	$ 0.307	$ (0.157)	$ 0.520	$ (0.620)
Net income available to Units	$ 0.308	$ 0.900	$ 0.524	$ 3.844
OPERATING PARTNERSHIP
REVENUES
Rental income	649,766,000	614,544,000	1,280,491,000	1,117,106,000
Fee and asset management	2,802,000	2,673,000	5,519,000	4,833,000
Total revenues	652,568,000	617,217,000	1,286,010,000	1,121,939,000
EXPENSES
Property and maintenance	115,388,000	113,501,000	240,961,000	212,030,000
Real estate taxes and insurance	83,055,000	76,742,000	165,149,000	141,837,000
Property management	20,555,000	22,031,000	42,673,000	44,520,000
Fee and asset management	1,378,000	1,577,000	3,040,000	3,223,000
Depreciation	190,136,000	323,304,000	375,303,000	519,526,000
General and administrative	13,752,000	16,085,000	31,328,000	32,580,000
Total expenses	424,264,000	553,240,000	858,454,000	953,716,000
Operating Income	228,304,000	63,977,000	427,556,000	168,223,000
Interest and other income	2,032,000	432,000	2,637,000	752,000
Other expenses	(1,533,000)	(1,631,000)	(2,190,000)	(23,350,000)
Interest:
Expense incurred, net	(115,924,000)	(122,950,000)	(228,973,000)	(317,417,000)
Amortization of deferred financing costs	(3,134,000)	(4,353,000)	(5,926,000)	(11,301,000)
Income (loss) before income and other taxes, (loss) from investments in unconsolidated entities, net gain on sales of land parcels, discontinued operations and net gain on sales of real estate properties	109,745,000	(64,525,000)	193,104,000	(183,093,000)
Income and other tax (expense) benefit	(646,000)	(428,000)	(886,000)	(833,000)
(Loss) from investments in unconsolidated entities	(7,616,000)	(8,174,000)	(9,025,000)	(54,540,000)
Net gain on sales of land parcels	824,000	14,616,000	794,000	14,616,000
Income (loss) from continuing operations	102,307,000	(58,511,000)	183,987,000	(223,850,000)
Discontinued operations, net	510,000	395,243,000	1,562,000	1,621,616,000
Income before net gain on sales of real estate properties	102,817,000	336,732,000	185,549,000	1,397,766,000
Net gain on sales of real estate properties	14,903,000	0	14,903,000	0
Net income	117,720,000	336,732,000	200,452,000	1,397,766,000
Net (income) loss attributable to Noncontrolling Interests – Partially Owned Properties	(588,000)	815,000	(1,092,000)	790,000
Net income attributable to controlling interests	117,132,000	337,547,000	199,360,000	1,398,556,000
ALLOCATION OF NET INCOME:
Preference Units	1,036,000	1,036,000	2,072,000	2,072,000
General Partner	111,654,000	323,723,000	189,753,000	1,340,373,000
Limited Partners	4,442,000	12,788,000	7,535,000	56,111,000
Net income available to Units	$ 116,096,000	$ 336,511,000	$ 197,288,000	$ 1,396,484,000
Earnings per Unit - basic:
Income (loss) from continuing operations available to Units	$ 0.308	$ (0.157)	$ 0.522	$ (0.620)
Net income available to Units	$ 0.309	$ 0.900	$ 0.526	$ 3.844
Weighted average Units outstanding	374,551	373,403	374,377	362,390
Earnings per Unit - diluted:
Income (loss) from continuing operations available to Units	$ 0.307	$ (0.157)	$ 0.520	$ (0.620)
Net income available to Units	$ 0.308	$ 0.900	$ 0.524	$ 3.844
Weighted average Units outstanding	377,118	373,403	376,780	362,390
Distributions declared per Unit outstanding	$ 0.50	$ 0.40	$ 1.00	$ 0.80