CONSOLIDATED BALANCE SHEETS OF ERP OPERATING LIMITED PARTNERSHIP (Unaudited) - USD ($) $ in Thousands	Jun. 30, 2018	Dec. 31, 2017
Investment in real estate
Land	$ 5,986,329	$ 5,996,024
Depreciable property	19,946,606	19,768,362
Projects under development	145,564	163,547
Land held for development	86,098	98,963
Investment in real estate	26,164,597	26,026,896
Accumulated depreciation	(6,338,043)	(6,040,378)
Investment in real estate, net	19,826,554	19,986,518
Cash and cash equivalents	34,507	50,647
Investments in unconsolidated entities	58,124	58,254
Restricted deposits	54,370	50,115
Other assets	433,027	425,065
Total assets	20,406,582	20,570,599
Liabilities:
Mortgage notes payable, net	2,894,325	3,618,722
Notes, net	5,532,637	5,038,812
Line of credit and commercial paper	345,807	299,757
Accounts payable and accrued expenses	146,415	114,766
Accrued interest payable	63,341	58,035
Other liabilities	344,159	341,852
Security deposits	66,800	65,009
Distributions payable	206,829	192,828
Total liabilities	9,600,313	9,729,781
Commitments and contingencies
Partners’ Capital:
Accumulated other comprehensive income (loss)	(67,310)	(88,612)
Noncontrolling Interests – Partially Owned Properties	(1,646)	4,708
Total liabilities and equity/capital	20,406,582	20,570,599
ERPOP [Member]
Investment in real estate
Land	5,986,329	5,996,024
Depreciable property	19,946,606	19,768,362
Projects under development	145,564	163,547
Land held for development	86,098	98,963
Investment in real estate	26,164,597	26,026,896
Accumulated depreciation	(6,338,043)	(6,040,378)
Investment in real estate, net	19,826,554	19,986,518
Cash and cash equivalents	34,507	50,647
Investments in unconsolidated entities	58,124	58,254
Restricted deposits	54,370	50,115
Other assets	433,027	425,065
Total assets	20,406,582	20,570,599
Liabilities:
Mortgage notes payable, net	2,894,325	3,618,722
Notes, net	5,532,637	5,038,812
Line of credit and commercial paper	345,807	299,757
Accounts payable and accrued expenses	146,415	114,766
Accrued interest payable	63,341	58,035
Other liabilities	344,159	341,852
Security deposits	66,800	65,009
Distributions payable	206,829	192,828
Total liabilities	9,600,313	9,729,781
Commitments and contingencies
Redeemable Limited Partners	366,483	366,955
Partners’ Capital:
Preference Units	37,280	37,280
General Partner	10,238,467	10,293,796
Limited Partners	232,995	226,691
Accumulated other comprehensive income (loss)	(67,310)	(88,612)
Total partners’ capital	10,441,432	10,469,155
Noncontrolling Interests – Partially Owned Properties	(1,646)	4,708
Total capital	10,439,786	10,473,863
Total liabilities and equity/capital	$ 20,406,582	$ 20,570,599