CONSOLIDATED BALANCE SHEETS OF ERP OPERATING LIMITED PARTNERSHIP (Unaudited) - USD ($) $ in Thousands	Mar. 31, 2022	Dec. 31, 2021
ASSETS
Land	$ 5,836,951	$ 5,814,790
Depreciable property	22,496,307	22,370,811
Projects under development	36,718	24,307
Land held for development	66,980	62,998
Investment in real estate	28,436,956	28,272,906
Accumulated depreciation	(8,578,131)	(8,354,282)
Investment in real estate, net	19,858,825	19,918,624
Investments in unconsolidated entities	150,092	127,448
Cash and cash equivalents	41,140	123,832
Restricted deposits	70,560	236,404
Right-of-use assets	471,667	474,713
Other assets	237,953	288,220
Total assets	20,830,237	21,169,241
Liabilities:
Mortgage notes payable, net	2,193,199	2,191,201
Notes, net	5,836,957	5,835,222
Line of credit and commercial paper	129,995	315,030
Accounts payable and accrued expenses	157,681	107,013
Accrued interest payable	56,876	69,510
Lease liabilities	311,293	312,335
Other liabilities	303,654	353,102
Security deposits	67,515	66,141
Distributions payable	242,574	233,502
Total liabilities	9,299,744	9,483,056
Commitments and contingencies
Redeemable Limited Partners	495,760	498,977
Partners’ Capital:
Accumulated other comprehensive income (loss)	(31,847)	(34,272)
Noncontrolling Interests – Partially Owned Properties	3,415	18,166
Total liabilities and equity/capital	20,830,237	21,169,241
ERPOP [Member]
ASSETS
Land	5,836,951	5,814,790
Depreciable property	22,496,307	22,370,811
Projects under development	36,718	24,307
Land held for development	66,980	62,998
Investment in real estate	28,436,956	28,272,906
Accumulated depreciation	(8,578,131)	(8,354,282)
Investment in real estate, net	19,858,825	19,918,624
Investments in unconsolidated entities	150,092	127,448
Cash and cash equivalents	41,140	123,832
Restricted deposits	70,560	236,404
Right-of-use assets	471,667	474,713
Other assets	237,953	288,220
Total assets	20,830,237	21,169,241
Liabilities:
Mortgage notes payable, net	2,193,199	2,191,201
Notes, net	5,836,957	5,835,222
Line of credit and commercial paper	129,995	315,030
Accounts payable and accrued expenses	157,681	107,013
Accrued interest payable	56,876	69,510
Lease liabilities	311,293	312,335
Other liabilities	303,654	353,102
Security deposits	67,515	66,141
Distributions payable	242,574	233,502
Total liabilities	9,299,744	9,483,056
Commitments and contingencies
Redeemable Limited Partners	495,760	498,977
Partners’ Capital:
Preference Units	37,280	37,280
General Partner	10,808,434	10,951,940
Limited Partners	217,451	214,094
Accumulated other comprehensive income (loss)	(31,847)	(34,272)
Total partners’ capital	11,031,318	11,169,042
Noncontrolling Interests – Partially Owned Properties	3,415	18,166
Total capital	11,034,733	11,187,208
Total liabilities and equity/capital	$ 20,830,237	$ 21,169,241