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Net Income Per Common Share and Net Income Per Common Unit (Tables) | 6 Months Ended
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Jun. 30, 2025
Net Income Per Share and Net Income Per Unit [Line Items] |
Schedule of Net Income Per Common Share | Basic and diluted income per share was calculated as follows for the periods presented ($ in thousands, except per share amounts):
| Three Months Ended June 30,
| 2025 |  | 2024
| Income |  | Weighted- average Common Shares |  | Per Common Share Amount |  | Income |  | Weighted- average Common Shares |  | Per Common Share Amount
Basic: |  |  |  |  |  |  |  |  |  |  |
Net income available to common stockholders | $ | 221,362 |  |  | 64,385,988 |  |  | $ | 3.44 |  |  | $ | 92,914 |  |  | 64,209,878 |  |  | $ | 1.45 |
Effect of Dilutive Securities: |  |  |  |  |  |  |  |  |  |  |
Stock options | — |  |  | 21,625 |  |  |  |  | — |  |  | 17,773 |  |  |
Diluted: |  |  |  |  |  |  |  |  |  |  |
Net income available to common stockholders | $ | 221,362 |  |  | 64,407,613 |  |  | $ | 3.44 |  |  | $ | 92,914 |  |  | 64,227,651 |  |  | $ | 1.45 |
| Six Months Ended June 30,
| 2025 |  | 2024
| Income |  | Weighted- average Common Shares |  | Per Common Share Amount |  | Income |  | Weighted- average Common Shares |  | Per Common Share Amount
Basic: |  |  |  |  |  |  |  |  |  |  |
Net income available to common stockholders | $ | 424,472 |  |  | 64,350,640 |  |  | $ | 6.60 |  |  | $ | 365,645 |  |  | 64,207,482 |  |  | $ | 5.69 |
Effect of Dilutive Securities: |  |  |  |  |  |  |  |  |  |  |
Stock options | — |  |  | 28,313 |  |  |  |  | — |  |  | 11,429 |  |  |
Diluted: |  |  |  |  |  |  |  |  |  |  |
Net income available to common stockholders | $ | 424,472 |  |  | 64,378,953 |  |  | $ | 6.59 |  |  | $ | 365,645 |  |  | 64,218,911 |  |  | $ | 5.69 |
Essex Portfolio, L.P. |
Net Income Per Share and Net Income Per Unit [Line Items] |
Schedule of Net Income Per Common Share | Basic and diluted income per unit was calculated as follows for the periods presented ($ in thousands, except per unit amounts):
| Three Months Ended June 30,
| 2025 |  | 2024
| Income |  | Weighted- average Common Units |  | Per Common Unit Amount |  | Income |  | Weighted- average Common Units |  | Per Common Unit Amount
Basic: |  |  |  |  |  |  |  |  |  |  |
Net income available to common unitholders | $ | 229,143 |  |  | 66,649,159 |  |  | $ | 3.44 |  |  | $ | 96,184 |  |  | 66,468,691 |  |  | $ | 1.45 |
Effect of Dilutive Securities: |  |  |  |  |  |  |  |  |  |  |
Stock options | — |  |  | 21,625 |  |  |  |  | — |  |  | 17,773 |  |  |
Diluted: |  |  |  |  |  |  |  |  |  |  |
Net income available to common unitholders | $ | 229,143 |  |  | 66,670,784 |  |  | $ | 3.44 |  |  | $ | 96,184 |  |  | 66,486,464 |  |  | $ | 1.45 |
| Six Months Ended June 30,
| 2025 |  | 2024
| Income |  | Weighted- average Common Units |  | Per Common Unit Amount |  | Income |  | Weighted- average Common Units |  | Per Common Unit Amount
Basic: |  |  |  |  |  |  |  |  |  |  |
Net income available to common unitholders | $ | 439,532 |  |  | 66,635,581 |  |  | $ | 6.60 |  |  | $ | 378,514 |  |  | 66,466,295 |  |  | $ | 5.69 |
Effect of Dilutive Securities: |  |  |  |  |  |  |  |  |  |  |
Stock options | — |  |  | 28,313 |  |  |  |  | — |  |  | 11,429 |  |  |
Diluted: |  |  |  |  |  |  |  |  |  |  |
Net income available to common unitholders | $ | 439,532 |  |  | 66,663,894 |  |  | $ | 6.59 |  |  | $ | 378,514 |  |  | 66,477,724 |  |  | $ | 5.69 |

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- Definition Tabular disclosure of an entity's basic and diluted earnings per share calculations, including a reconciliation of numerators and denominators of the basic and diluted per-share computations for income from continuing operations. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 260 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482662/260-10-50-1 + Details
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