CONSOLIDATED BALANCE SHEETS OF ERP OPERATING LIMITED PARTNERSHIP (Unaudited) - USD ($) $ in Thousands	Sep. 30, 2021	Dec. 31, 2020
ASSETS
Land	$ 5,779,686	$ 5,785,367
Depreciable property	21,840,344	20,920,654
Projects under development	163,659	411,134
Land held for development	82,026	86,170
Investment in real estate	27,865,715	27,203,325
Accumulated depreciation	(8,260,846)	(7,859,657)
Investment in real estate, net	19,604,869	19,343,668
Investments in unconsolidated entities	79,429	52,782
Cash and cash equivalents	39,707	42,591
Restricted deposits	187,042	57,137
Right-of-use assets	477,693	499,287
Other assets	274,275	291,426
Total assets	20,663,015	20,286,891
Liabilities:
Mortgage notes payable, net	2,281,165	2,293,890
Notes, net	5,833,483	5,335,536
Line of credit and commercial paper	30,000	414,830
Accounts payable and accrued expenses	166,522	107,366
Accrued interest payable	56,777	65,896
Lease liabilities	313,361	329,130
Other liabilities	350,201	345,064
Security deposits	64,617	60,480
Distributions payable	233,306	232,262
Total liabilities	9,329,432	9,184,454
Commitments and contingencies
Redeemable Limited Partners	459,933	338,951
Partners’ Capital:
Accumulated other comprehensive income (loss)	(36,666)	(43,666)
Noncontrolling Interests – Partially Owned Properties	2,138	4,673
Total liabilities and equity/capital	20,663,015	20,286,891
ERPOP [Member]
ASSETS
Land	5,779,686	5,785,367
Depreciable property	21,840,344	20,920,654
Projects under development	163,659	411,134
Land held for development	82,026	86,170
Investment in real estate	27,865,715	27,203,325
Accumulated depreciation	(8,260,846)	(7,859,657)
Investment in real estate, net	19,604,869	19,343,668
Investments in unconsolidated entities	79,429	52,782
Cash and cash equivalents	39,707	42,591
Restricted deposits	187,042	57,137
Right-of-use assets	477,693	499,287
Other assets	274,275	291,426
Total assets	20,663,015	20,286,891
Liabilities:
Mortgage notes payable, net	2,281,165	2,293,890
Notes, net	5,833,483	5,335,536
Line of credit and commercial paper	30,000	414,830
Accounts payable and accrued expenses	166,522	107,366
Accrued interest payable	56,777	65,896
Lease liabilities	313,361	329,130
Other liabilities	350,201	345,064
Security deposits	64,617	60,480
Distributions payable	233,306	232,262
Total liabilities	9,329,432	9,184,454
Commitments and contingencies
Redeemable Limited Partners	459,933	338,951
Partners’ Capital:
Preference Units	37,280	37,280
General Partner	10,661,943	10,532,037
Limited Partners	208,955	233,162
Accumulated other comprehensive income (loss)	(36,666)	(43,666)
Total partners’ capital	10,871,512	10,758,813
Noncontrolling Interests – Partially Owned Properties	2,138	4,673
Total capital	10,873,650	10,763,486
Total liabilities and equity/capital	$ 20,663,015	$ 20,286,891