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Equity, Capital and Other Interests (Tables) | 9 Months Ended
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Sep. 30, 2024
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 nine months ended September 30, 2024 and 2023:
|  | 2024 |  |  | 2023 |
Common Shares |  |  |  |  |  |
Common Shares outstanding at January 1, |  |  | 379,291,417 |  |  |  | 378,429,708 |
Common Shares Issued: |  |  |  |  |  |
Conversion of OP Units |  |  | 191,019 |  |  |  | 862,596 |
Exercise of share options |  |  | 284,021 |  |  |  | 234,395 |
Employee Share Purchase Plan (ESPP) |  |  | 54,061 |  |  |  | 48,835 |
Restricted share grants, net |  |  | 186,672 |  |  |  | 148,304 |
Common Shares Other: |  |  |  |  |  |
Repurchased and retired |  |  | (652,452 | ) |  |  | — |
Common Shares outstanding at September 30, |  |  | 379,354,738 |  |  |  | 379,723,838 |
Units |  |  |  |  |  |
Units outstanding at January 1, |  |  | 11,581,306 |  |  |  | 12,429,737 |
Restricted unit grants, net |  |  | 172,667 |  |  |  | 166,344 |
Conversion of OP Units to Common Shares |  |  | (191,019 | ) |  |  | (862,596 | )
Units outstanding at September 30, |  |  | 11,562,954 |  |  |  | 11,733,485 |
Total Common Shares and Units outstanding at September 30, |  |  | 390,917,692 |  |  |  | 391,457,323 |
Units Ownership Interest in Operating Partnership |  |  | 3.0 | % |  |  | 3.0 | %
Changes in Redemption Value of Redeemable Noncontrolling Interests - Operating Partnership/Redeemable Limited Partners | The following table presents the changes in the redemption value of the Redeemable Noncontrolling Interests – Operating Partnership/Redeemable Limited Partners for the nine months ended September 30, 2024 and 2023, respectively (amounts in thousands):
|  | 2024 |  |  | 2023 |
Balance at January 1, |  | $ | 289,248 |  |  | $ | 318,273 |
Change in market value |  |  | 64,541 |  |  |  | (18,613 | )
Change in carrying value |  |  | (1,986 | ) |  |  | (21,878 | )
Balance at September 30, |  | $ | 351,803 |  |  | $ | 277,782 |
Issued and Outstanding Preferred Shares and Preference Units | The following table presents the Company’s issued and outstanding Preferred Shares/Preference Units as of September 30, 2024 and December 31, 2023:
|  |  |  |  |  |  | Amounts in thousands |
|  |  |  | Annual |  |  |  |  |  |  |
|  | Call |  | Dividend Per |  |  | September 30, |  |  | December 31, |
|  | Date (1) |  | Share/Unit (2) |  |  | 2024 |  |  | 2023 |
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; 343,100 shares/units issued and outstanding as of September 30, 2024 and 745,600 shares/units issued and outstanding as of December 31, 2023 (3) |  | 12/10/2026 |  | $ | 4.145 |  |  | $ | 17,155 |  |  | $ | 37,280 |
|  |  |  |  |  |  | $ | 17,155 |  |  | $ | 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. (3) During the nine months ended September 30, 2024, the Company repurchased and retired 402,500 Series K Preferred Shares/Preference Units with a liquidation value of approximately $20.1 million for total cash consideration of approximately $21.8 million, inclusive of premiums and accrued dividends through the redemption date. As a result of this partial redemption, the Company incurred a cash charge of approximately $1.4 million which was recorded as a premium on the redemption of Preferred Shares/Preference Units.
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 nine months ended September 30, 2024 and 2023:
|  | 2024 |  |  | 2023 |
General and Limited Partner Units |  |  |  |  |  |
General and Limited Partner Units outstanding at January 1, |  |  | 390,872,723 |  |  |  | 390,859,445 |
Issued to General Partner: |  |  |  |  |  |
Exercise of EQR share options |  |  | 284,021 |  |  |  | 234,395 |
EQR’s Employee Share Purchase Plan (ESPP) |  |  | 54,061 |  |  |  | 48,835 |
EQR’s restricted share grants, net |  |  | 186,672 |  |  |  | 148,304 |
Issued to Limited Partners: |  |  |  |  |  |
Restricted unit grants, net |  |  | 172,667 |  |  |  | 166,344 |
General Partner Other: |  |  |  |  |  |
OP Units repurchased and retired |  |  | (652,452 | ) |  |  | — |
General and Limited Partner Units outstanding at September 30, |  |  | 390,917,692 |  |  |  | 391,457,323 |
Limited Partner Units |  |  |  |  |  |
Limited Partner Units outstanding at January 1, |  |  | 11,581,306 |  |  |  | 12,429,737 |
Limited Partner restricted unit grants, net |  |  | 172,667 |  |  |  | 166,344 |
Conversion of Limited Partner OP Units to EQR Common Shares |  |  | (191,019 | ) |  |  | (862,596 | )
Limited Partner Units outstanding at September 30, |  |  | 11,562,954 |  |  |  | 11,733,485 |
Limited Partner Units Ownership Interest in Operating Partnership |  |  | 3.0 | % |  |  | 3.0 | %

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