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Net Income Per Common Share and Net Income Per Common Unit (Tables) | 9 Months Ended
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Sep. 30, 2022
Net Income Per Share and Net Income Per Unit [Line Items] |
Schedule of Net Income Per Common Share | Essex Property Trust, Inc.
| Three Months Ended September 30, 2022 |  | Three Months Ended September 30, 2021
| 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 | $ | 92,842 |  |  | 65,059,678 |  |  | $ | 1.43 |  |  | $ | 118,390 |  |  | 65,048,486 |  |  | $ | 1.82 |
Effect of Dilutive Securities: |  |  |  |  |  |  |  |  |  |  |
Stock options | — |  |  | 8,112 |  |  |  |  | — |  |  | 99,295 |  |  |
Diluted: |  |  |  |  |  |  |  |  |  |  |
Net income available to common stockholders | $ | 92,842 |  |  | 65,067,790 |  |  | $ | 1.43 |  |  | $ | 118,390 |  |  | 65,147,781 |  |  | $ | 1.82 |
| Nine Months Ended September 30, 2022 |  | Nine Months Ended September 30, 2021
| 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 | $ | 223,150 |  |  | 65,198,532 |  |  | $ | 3.42 |  |  | $ | 351,680 |  |  | 65,013,477 |  |  | $ | 5.41 |
Effect of Dilutive Securities: |  |  |  |  |  |  |  |  |  |  |
Stock options | — |  |  | 27,235 |  |  |  |  | — |  |  | 61,697 |  |  |
Diluted: |  |  |  |  |  |  |  |  |  |  |
Net income available to common stockholders | $ | 223,150 |  |  | 65,225,767 |  |  | $ | 3.42 |  |  | $ | 351,680 |  |  | 65,075,174 |  |  | $ | 5.40 |
Essex Portfolio, L.P. |
Net Income Per Share and Net Income Per Unit [Line Items] |
Schedule of Net Income Per Common Share | Essex Portfolio, L.P.
| Three Months Ended September 30, 2022 |  | Three Months Ended September 30, 2021
| 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 | $ | 96,089 |  |  | 67,333,077 |  |  | $ | 1.43 |  |  | $ | 122,558 |  |  | 67,336,164 |  |  | $ | 1.82 |
Effect of Dilutive Securities: |  |  |  |  |  |  |  |  |  |  |
Stock options | — |  |  | 8,112 |  |  |  |  | — |  |  | 99,295 |  |  |
Diluted: |  |  |  |  |  |  |  |  |  |  |
Net income available to common unitholders | $ | 96,089 |  |  | 67,341,189 |  |  | $ | 1.43 |  |  | $ | 122,558 |  |  | 67,435,459 |  |  | $ | 1.82 |
| Nine Months Ended September 30, 2022 |  | Nine Months Ended September 30, 2021
| 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 | $ | 230,950 |  |  | 67,476,168 |  |  | $ | 3.42 |  |  | $ | 364,083 |  |  | 67,307,259 |  |  | $ | 5.41 |
Effect of Dilutive Securities: |  |  |  |  |  |  |  |  |  |  |
Stock options | — |  |  | 27,235 |  |  |  |  | — |  |  | 61,697 |  |  |
Diluted: |  |  |  |  |  |  |  |  |  |  |
Net income available to common unitholders | $ | 230,950 |  |  | 67,503,403 |  |  | $ | 3.42 |  |  | $ | 364,083 |  |  | 67,368,956 |  |  | $ | 5.40 |

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