CONSOLIDATED BALANCE SHEETS OF ERP OPERATING LIMITED PARTNERSHIP - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
ASSETS
Land	$ 5,814,790	$ 5,785,367
Depreciable property	22,370,811	20,920,654
Projects under development	24,307	411,134
Land held for development	62,998	86,170
Investment in real estate	28,272,906	27,203,325
Accumulated depreciation	(8,354,282)	(7,859,657)
Investment in real estate, net	19,918,624	19,343,668
Investments in unconsolidated entities	127,448	52,782
Cash and cash equivalents	123,832	42,591
Restricted deposits	236,404	57,137
Right-of-use assets	474,713	499,287
Other assets	288,220	291,426
Total assets	21,169,241	20,286,891
Liabilities:
Mortgage notes payable, net	2,191,201	2,293,890
Notes, net	5,835,222	5,335,536
Line of credit and commercial paper	315,030	414,830
Accounts payable and accrued expenses	107,013	107,366
Accrued interest payable	69,510	65,896
Lease liabilities	312,335	329,130
Other liabilities	353,102	345,064
Security deposits	66,141	60,480
Distributions payable	233,502	232,262
Total liabilities	9,483,056	9,184,454
Commitments and contingencies
Redeemable Limited Partners	498,977	338,951
Partners’ Capital:
Accumulated other comprehensive income (loss)	(34,272)	(43,666)
Noncontrolling Interests – Partially Owned Properties	18,166	4,673
Total liabilities and equity/capital	21,169,241	20,286,891
ERPOP [Member]
ASSETS
Land	5,814,790	5,785,367
Depreciable property	22,370,811	20,920,654
Projects under development	24,307	411,134
Land held for development	62,998	86,170
Investment in real estate	28,272,906	27,203,325
Accumulated depreciation	(8,354,282)	(7,859,657)
Investment in real estate, net	19,918,624	19,343,668
Investments in unconsolidated entities	127,448	52,782
Cash and cash equivalents	123,832	42,591
Restricted deposits	236,404	57,137
Right-of-use assets	474,713	499,287
Other assets	288,220	291,426
Total assets	21,169,241	20,286,891
Liabilities:
Mortgage notes payable, net	2,191,201	2,293,890
Notes, net	5,835,222	5,335,536
Line of credit and commercial paper	315,030	414,830
Accounts payable and accrued expenses	107,013	107,366
Accrued interest payable	69,510	65,896
Lease liabilities	312,335	329,130
Other liabilities	353,102	345,064
Security deposits	66,141	60,480
Distributions payable	233,502	232,262
Total liabilities	9,483,056	9,184,454
Commitments and contingencies
Redeemable Limited Partners	498,977	338,951
Partners’ Capital:
Preference Units	37,280	37,280
General Partner	10,951,940	10,532,037
Limited Partners	214,094	233,162
Accumulated other comprehensive income (loss)	(34,272)	(43,666)
Total partners’ capital	11,169,042	10,758,813
Noncontrolling Interests – Partially Owned Properties	18,166	4,673
Total capital	11,187,208	10,763,486
Total liabilities and equity/capital	$ 21,169,241	$ 20,286,891