CONSOLIDATED STATEMENTS OF OPERATIONS OF ERP OPERATING LIMITED PARTNERSHIP (Unaudited) - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016
REVENUES
Rental income	$ 612,299	$ 594,939	$ 1,216,219	$ 1,211,104
Fee and asset management	181	215	361	3,133
Total revenues	612,480	595,154	1,216,580	1,214,237
EXPENSES
Property and maintenance	99,316	96,307	201,924	205,472
Real estate taxes and insurance	87,503	77,415	169,231	157,611
Property management	21,589	20,991	43,841	44,486
General and administrative	13,626	18,296	27,799	35,013
Depreciation	179,896	176,127	358,864	349,012
Total expenses	401,930	389,136	801,659	791,594
Operating income	210,550	206,018	414,921	422,643
Interest and other income	1,162	56,525	1,763	59,583
Other expenses	(1,042)	(1,504)	(2,132)	(4,060)
Interest:
Expense incurred, net	(91,224)	(86,472)	(197,434)	(299,964)
Amortization of deferred financing costs	(2,087)	(2,345)	(4,383)	(7,739)
Income before income and other taxes, (loss) from investments in unconsolidated entities, net gain (loss) on sales of real estate properties and land parcels and discontinued operations	117,359	172,222	212,735	170,463
Income and other tax (expense) benefit	(220)	(413)	(482)	(763)
(Loss) from investments in unconsolidated entities	(682)	(800)	(1,755)	(1,904)
Net gain on sales of real estate properties	87,726	57,356	124,433	3,780,835
Net gain (loss) on sales of land parcels	(23)		19,170	11,722
Income from continuing operations	204,160	228,365	354,101	3,960,353
Discontinued operations, net	0	35	0	(122)
Net income	204,160	228,400	354,101	3,960,231
Net (income) attributable to Noncontrolling Interests – Partially Owned Properties	(765)	(781)	(1,553)	(1,545)
Net income attributable to controlling interests	$ 196,041	$ 218,839	$ 339,783	$ 3,806,597
Earnings per Unit – basic:
Income from continuing operations available to Units	$ 0.53	$ 0.60	$ 0.92	$ 10.43
Net income available to Units	0.53	0.60	0.92	10.43
Earnings per Unit – diluted:
Income from continuing operations available to Units	0.53	0.59	0.92	10.36
Net income available to Units	$ 0.53	$ 0.59	$ 0.92	$ 10.36
Weighted average Units outstanding	382,692	382,065	382,505	382,012
ERPOP [Member]
REVENUES
Rental income	$ 612,299	$ 594,939	$ 1,216,219	$ 1,211,104
Fee and asset management	181	215	361	3,133
Total revenues	612,480	595,154	1,216,580	1,214,237
EXPENSES
Property and maintenance	99,316	96,307	201,924	205,472
Real estate taxes and insurance	87,503	77,415	169,231	157,611
Property management	21,589	20,991	43,841	44,486
General and administrative	13,626	18,296	27,799	35,013
Depreciation	179,896	176,127	358,864	349,012
Total expenses	401,930	389,136	801,659	791,594
Operating income	210,550	206,018	414,921	422,643
Interest and other income	1,162	56,525	1,763	59,583
Other expenses	(1,042)	(1,504)	(2,132)	(4,060)
Interest:
Expense incurred, net	(91,224)	(86,472)	(197,434)	(299,964)
Amortization of deferred financing costs	(2,087)	(2,345)	(4,383)	(7,739)
Income before income and other taxes, (loss) from investments in unconsolidated entities, net gain (loss) on sales of real estate properties and land parcels and discontinued operations	117,359	172,222	212,735	170,463
Income and other tax (expense) benefit	(220)	(413)	(482)	(763)
(Loss) from investments in unconsolidated entities	(682)	(800)	(1,755)	(1,904)
Net gain on sales of real estate properties	87,726	57,356	124,433	3,780,835
Net gain (loss) on sales of land parcels	(23)		19,170	11,722
Income from continuing operations	204,160	228,365	354,101	3,960,353
Discontinued operations, net	0	35	0	(122)
Net income	204,160	228,400	354,101	3,960,231
Net (income) attributable to Noncontrolling Interests – Partially Owned Properties	(765)	(781)	(1,553)	(1,545)
Net income attributable to controlling interests	203,395	227,619	352,548	3,958,686
ALLOCATION OF NET INCOME:
Preference Units	773	772	1,546	1,545
General Partner	195,268	218,067	338,237	3,805,052
Limited Partners	7,354	8,780	12,765	152,089
Net income available to Units	$ 202,622	$ 226,847	$ 351,002	$ 3,957,141
Earnings per Unit – basic:
Income from continuing operations available to Units	$ 0.53	$ 0.60	$ 0.92	$ 10.43
Net income available to Units	$ 0.53	$ 0.60	$ 0.92	$ 10.43
Weighted average Units outstanding	379,733	378,934	379,619	378,612
Earnings per Unit – diluted:
Income from continuing operations available to Units	$ 0.53	$ 0.59	$ 0.92	$ 10.36
Net income available to Units	$ 0.53	$ 0.59	$ 0.92	$ 10.36
Weighted average Units outstanding	382,692	382,065	382,505	382,012
Distributions declared per Unit outstanding	$ 0.50375	$ 0.50375	$ 1.0075	$ 9.0075