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CONSOLIDATED STATEMENTS OF CHANGES IN CAPITAL OF ERP OPERATING LIMITED PARTNERSHIP - USD ($) $ in Thousands | Total | ERPOP [Member] | PREFERRED SHARES ERPOP [Member] | General Partner [Member] ERPOP [Member] | Limited Partner ERPOP [Member] | ACCUMULATED OTHER COMPREHENSIVE INCOME (LOSS) ERPOP [Member] | DISTRIBUTIONS [Member] ERPOP [Member] | PARTIALLY OWNED PROPERTIES [Member] ERPOP [Member]
--- | --- | --- | --- | --- | --- | --- | --- | ---
Balance, beginning of year at Dec. 31, 2019 |  |  | $ 37,280 | $ 10,355,789 | $ 227,837 | $ (77,563) |  |
Balance, beginning of year at Dec. 31, 2019 |  |  |  |  |  |  |  | $ 1,183
Conversion of OP Units held by Limited Partners into OP Units held by General Partner |  |  |  | 4,696 | (4,696) |  |  |
Exercise of EQR share options |  |  |  | 12,275 |  |  |  |
EQR's Employee Share Purchase Plan (ESPP) |  |  |  | 4,508 |  |  |  |
EQR restricted shares |  |  |  | 11,225 | 13 |  |  |
EQR share options |  |  |  | 2,349 |  |  |  |
EQR ESPP discount |  |  |  | 944 |  |  |  |
Net income available to Units - General Partner |  | $ 910,546 |  | 910,546 |  |  |  |
OP Units - General Partner distributions |  |  |  | (897,326) |  |  |  |
Supplemental Executive Retirement Plan (SERP) |  |  |  | (395) |  |  |  |
Change in market value of Redeemable Limited Partners |  |  |  | 125,224 |  |  |  |
Adjustment for Limited Partners ownership in Operating Partnership |  |  |  | 2,202 | (2,202) |  |  |
Equity compensation associated with Units - Limited Partners |  |  |  |  | 11,926 |  |  |
Net income available to Units - Limited Partners |  | 34,010 |  |  | 34,010 |  |  |
Units - Limited Partners distributions |  |  |  |  | (32,951) |  |  |
Change in carrying value of Redeemable Limited Partners |  |  |  |  | (775) |  |  |
Unrealized holding gains (losses) arising during the year | $ (1,190) | (1,190) |  |  |  | (1,190) |  |
Losses reclassified into earnings from other comprehensive income | 35,087 | 35,087 |  |  |  | 35,087 |  |
Distributions declared per Unit outstanding |  |  |  |  |  |  | $ 2.41 |
Net income attributable to Noncontrolling Interests | 962,501 | 962,501 |  |  |  |  |  | 14,855
Contributions by Noncontrolling Interests |  |  |  |  |  |  |  | 417
Distributions to Noncontrolling Interests |  |  |  |  |  |  |  | (11,782)
Balance, end of year at Dec. 31, 2020 |  |  | 37,280 | 10,532,037 | 233,162 | (43,666) |  |
Balance, end of year at Dec. 31, 2020 |  |  |  |  |  |  |  | 4,673
Conversion of OP Units held by Limited Partners into OP Units held by General Partner |  |  |  | 74,063 | (74,063) |  |  |
Exercise of EQR share options |  |  |  | 85,445 |  |  |  |
EQR's Employee Share Purchase Plan (ESPP) |  |  |  | 4,265 |  |  |  |
EQR restricted shares |  |  |  | 8,389 |  |  |  |
EQR share options |  |  |  | 3,101 |  |  |  |
EQR ESPP discount |  |  |  | 991 |  |  |  |
Net income available to Units - General Partner |  | 1,329,760 |  | 1,329,760 |  |  |  |
OP Units - General Partner distributions |  |  |  | (902,412) |  |  |  |
Offering costs |  |  |  | (428) |  |  |  |
Supplemental Executive Retirement Plan (SERP) |  |  |  | (1,335) |  |  |  |
Change in market value of Redeemable Limited Partners |  |  |  | (158,598) |  |  |  |
Adjustment for Limited Partners ownership in Operating Partnership |  |  |  | (23,338) | 23,338 |  |  |
Equity compensation associated with Units - Limited Partners |  |  |  |  | 17,797 |  |  |
Net income available to Units - Limited Partners |  | 45,900 |  |  | 45,900 |  |  |
Units - Limited Partners distributions |  |  |  |  | (30,612) |  |  |
Change in carrying value of Redeemable Limited Partners |  |  |  |  | (1,428) |  |  |
Losses reclassified into earnings from other comprehensive income | 9,394 | 9,394 |  |  |  | 9,394 |  |
Distributions declared per Unit outstanding |  |  |  |  |  |  | 2.41 |
Net income attributable to Noncontrolling Interests | 1,396,714 | 1,396,714 |  |  |  |  |  | 17,964
Contributions by Noncontrolling Interests |  |  |  |  |  |  |  | 1,394
Distributions to Noncontrolling Interests |  |  |  |  |  |  |  | (5,865)
Balance, end of year at Dec. 31, 2021 |  |  | 37,280 | 10,951,940 | 214,094 | (34,272) |  |
Balance, end of year at Dec. 31, 2021 |  |  |  |  |  |  |  | 18,166
Conversion of OP Units held by Limited Partners into OP Units held by General Partner |  |  |  | 11,923 | (11,923) |  |  |
Issuance of OP Units |  |  |  | 139,623 |  |  |  |
Exercise of EQR share options |  |  |  | 25,069 |  |  |  |
EQR's Employee Share Purchase Plan (ESPP) |  |  |  | 4,178 |  |  |  |
EQR restricted shares |  |  |  | 11,595 | 1 |  |  |
EQR share options |  |  |  | 2,321 |  |  |  |
EQR ESPP discount |  |  |  | 796 |  |  |  |
Net income available to Units - General Partner |  | 773,821 |  | 773,821 |  |  |  |
OP Units - General Partner distributions |  |  |  | (942,047) |  |  |  |
Offering costs |  |  |  | (783) |  |  |  |
Supplemental Executive Retirement Plan (SERP) |  |  |  | (269) |  |  |  |
Acquisition of Noncontrolling Interest - Partially Owned Properties |  |  |  | (27,383) |  |  |  |
Change in market value of Redeemable Limited Partners |  |  |  | 176,490 |  |  |  |
Adjustment for Limited Partners ownership in Operating Partnership |  |  |  | 11,432 | (11,432) |  |  |
Equity compensation associated with Units - Limited Partners |  |  |  |  | 19,104 |  |  |
Net income available to Units - Limited Partners |  | 26,310 |  |  | 26,310 |  |  |
Units - Limited Partners distributions |  |  |  |  | (30,407) |  |  |
Change in carrying value of Redeemable Limited Partners |  |  |  |  | 4,214 |  |  |
Unrealized holding gains (losses) arising during the year | 20,654 | 20,654 |  |  |  | 20,654 |  |
Losses reclassified into earnings from other comprehensive income | 11,071 | 11,071 |  |  |  | 11,071 |  |
Distributions declared per Unit outstanding |  |  |  |  |  |  | $ 2.50 |
Net income attributable to Noncontrolling Interests | $ 806,995 | $ 806,995 |  |  |  |  |  | 3,774
Contributions by Noncontrolling Interests |  |  |  |  |  |  |  | 603
Distributions to Noncontrolling Interests |  |  |  |  |  |  |  | (18,469)
Acquisitions of Noncontrolling Interests - Partially Owned Properties |  |  |  |  |  |  |  | (4,795)
Balance, end of year at Dec. 31, 2022 |  |  | $ 37,280 | $ 11,138,706 | $ 209,961 | $ (2,547) |  |
Balance, end of year at Dec. 31, 2022 |  |  |  |  |  |  |  | $ (721)

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