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Equity, Capital and Other Interests (Tables) | 12 Months Ended
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Dec. 31, 2023
Class Of Stock [Line Items] |
Changes in Issued and Outstanding Common Shares and Units | The following table presents the changes in the Company’s issued and outstanding Common Shares and Units for the years ended December 31, 2023, 2022 and 2021:
|  | 2023 |  |  | 2022 |  |  | 2021 |
Common Shares |  |  |  |  |  |  |  |  |
Common Shares outstanding at January 1, |  |  | 378,429,708 |  |  |  | 375,527,195 |  |  |  | 372,302,000 |
Common Shares Issued: |  |  |  |  |  |  |  |  |
Conversion of OP Units |  |  | 1,013,795 |  |  |  | 452,532 |  |  |  | 1,354,208 |
Issuance of Common Shares |  |  | — |  |  |  | 1,740,550 |  |  |  | — |
Exercise of share options |  |  | 495,690 |  |  |  | 468,021 |  |  |  | 1,710,692 |
Employee Share Purchase Plan (ESPP) |  |  | 68,136 |  |  |  | 66,835 |  |  |  | 70,702 |
Restricted share grants, net |  |  | 148,474 |  |  |  | 174,575 |  |  |  | 89,593 |
Common Shares Other: |  |  |  |  |  |  |  |  |
Repurchased and retired |  |  | (864,386 | ) |  |  | — |  |  |  | — |
Common Shares outstanding at December 31, |  |  | 379,291,417 |  |  |  | 378,429,708 |  |  |  | 375,527,195 |
Units |  |  |  |  |  |  |  |  |
Units outstanding at January 1, |  |  | 12,429,737 |  |  |  | 12,659,027 |  |  |  | 13,858,073 |
Restricted unit grants, net |  |  | 165,364 |  |  |  | 223,242 |  |  |  | 155,162 |
Conversion of OP Units to Common Shares |  |  | (1,013,795 | ) |  |  | (452,532 | ) |  |  | (1,354,208 | )
Units outstanding at December 31, |  |  | 11,581,306 |  |  |  | 12,429,737 |  |  |  | 12,659,027 |
Total Common Shares and Units outstanding at December 31, |  |  | 390,872,723 |  |  |  | 390,859,445 |  |  |  | 388,186,222 |
Units Ownership Interest in Operating Partnership |  |  | 3.0 | % |  |  | 3.2 | % |  |  | 3.3 | %
Changes in Redemption Value of Redeemable Noncontrolling Interests - Operating Partnership/Redeemable Limited Partners | he following table presents the changes in the redemption value of the Redeemable Noncontrolling Interests – Operating Partnership/Redeemable Limited Partners for the years ended December 31, 2023, 2022 and 2021, respectively (amounts in thousands):
|  | 2023 |  |  | 2022 |  |  | 2021 |
Balance at January 1, |  | $ | 318,273 |  |  | $ | 498,977 |  |  | $ | 338,951 |
Change in market value |  |  | (7,667 | ) |  |  | (176,490 | ) |  |  | 158,598 |
Change in carrying value |  |  | (21,358 | ) |  |  | (4,214 | ) |  |  | 1,428 |
Balance at December 31, |  | $ | 289,248 |  |  | $ | 318,273 |  |  | $ | 498,977 |
Issued and Outstanding Preferred Shares and Preference Units | The following table presents the Company’s issued and outstanding Preferred Shares/Preference Units as of December 31, 2023 and 2022:
|  |  |  |  |  |  | Amounts in thousands |
|  |  |  | Annual |  |  |  |  |  |  |
|  | Call |  | Dividend Per |  |  | December 31, |  |  | December 31, |
|  | Date (1) |  | Share/Unit (2) |  |  | 2023 |  |  | 2022 |
Preferred Shares/Preference Units of beneficial interest, $0.01 par value; 100,000,000 shares authorized: |  |  |  |  |  |  |  |  |  |  |
8.29% Series K Cumulative Redeemable Preferred Shares/Preference Units; liquidation value $50 per share/unit; 745,600 shares/units issued and outstanding as of December 31, 2023 and 2022 |  | 12/10/2026 |  | $ | 4.145 |  |  | $ | 37,280 |  |  | $ | 37,280 |
|  |  |  |  |  |  | $ | 37,280 |  |  | $ | 37,280 |
(1) On or after the call date, redeemable Preferred Shares/Preference Units may be redeemed for cash at the option of the Company or the Operating Partnership, respectively, in whole or in part, at a redemption price equal to the liquidation price per share/unit, plus accrued and unpaid distributions, if any. (2) Dividends on Preferred Shares/Preference Units are payable quarterly.
ERPOP [Member] |
Class Of Stock [Line Items] |
Changes in Issued and Outstanding Common Shares and Units | The following table presents the changes in the Operating Partnership’s issued and outstanding General Partner Units and Limited Partner Units for the years ended December 31, 2023, 2022 and 2021:
|  | 2023 |  |  | 2022 |  |  | 2021 |
General and Limited Partner Units |  |  |  |  |  |  |  |  |
General and Limited Partner Units outstanding at January 1, |  |  | 390,859,445 |  |  |  | 388,186,222 |  |  |  | 386,160,073 |
Issued to General Partner: |  |  |  |  |  |  |  |  |
Issuance of OP Units |  |  | — |  |  |  | 1,740,550 |  |  |  | — |
Exercise of EQR share options |  |  | 495,690 |  |  |  | 468,021 |  |  |  | 1,710,692 |
EQR’s Employee Share Purchase Plan (ESPP) |  |  | 68,136 |  |  |  | 66,835 |  |  |  | 70,702 |
EQR’s restricted share grants, net |  |  | 148,474 |  |  |  | 174,575 |  |  |  | 89,593 |
Issued to Limited Partners: |  |  |  |  |  |  |  |  |
Restricted unit grants, net |  |  | 165,364 |  |  |  | 223,242 |  |  |  | 155,162 |
General Partner Other: |  |  |  |  |  |  |  |  |
OP Units repurchased and retired |  |  | (864,386 | ) |  |  | — |  |  |  | — |
General and Limited Partner Units outstanding at December 31, |  |  | 390,872,723 |  |  |  | 390,859,445 |  |  |  | 388,186,222 |
Limited Partner Units |  |  |  |  |  |  |  |  |
Limited Partner Units outstanding at January 1, |  |  | 12,429,737 |  |  |  | 12,659,027 |  |  |  | 13,858,073 |
Limited Partner restricted unit grants, net |  |  | 165,364 |  |  |  | 223,242 |  |  |  | 155,162 |
Conversion of Limited Partner OP Units to EQR Common Shares |  |  | (1,013,795 | ) |  |  | (452,532 | ) |  |  | (1,354,208 | )
Limited Partner Units outstanding at December 31, |  |  | 11,581,306 |  |  |  | 12,429,737 |  |  |  | 12,659,027 |
Limited Partner Units Ownership Interest in Operating Partnership |  |  | 3.0 | % |  |  | 3.2 | % |  |  | 3.3 | %

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