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Net Income Per Common Share and Net Income Per Common Unit (Tables) | 3 Months Ended
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Mar. 31, 2021
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 March 31, 2021 |  | Three Months Ended March 31, 2020
| 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 | $ | 168,444 |  |  | 64,989,620 |  |  | $ | 2.59 |  |  | $ | 315,006 |  |  | 66,043,831 |  |  | $ | 4.77 |
Effect of Dilutive Securities: |  |  |  |  |  |  |  |  |  |  |
Stock options | — |  |  | 31,066 |  |  |  |  | — |  |  | 57,337 |  |  |
DownREIT units | 197 |  |  | 94,247 |  |  |  |  | 196 |  |  | 94,247 |  |  |
Diluted: |  |  |  |  |  |  |  |  |  |  |
Net income available to common stockholders | $ | 168,641 |  |  | 65,114,933 |  |  | $ | 2.59 |  |  | $ | 315,202 |  |  | 66,195,415 |  |  | $ | 4.76 |
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 March 31, 2021 |  | Three Months Ended March 31, 2020
| 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 | $ | 174,391 |  |  | 67,283,424 |  |  | $ | 2.59 |  |  | $ | 325,992 |  |  | 68,344,012 |  |  | $ | 4.77 |
Effect of Dilutive Securities: |  |  |  |  |  |  |  |  |  |  |
Stock options | — |  |  | 31,066 |  |  |  |  | — |  |  | 57,337 |  |  |
DownREIT units | 197 |  |  | 94,247 |  |  |  |  | 196 |  |  | 94,247 |  |  |
Diluted: |  |  |  |  |  |  |  |  |  |  |
Net income available to common unitholders | $ | 174,588 |  |  | 67,408,737 |  |  | $ | 2.59 |  |  | $ | 326,188 |  |  | 68,495,596 |  |  | $ | 4.76 |

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- Definition The amount of net income or loss for the period per each share. + References No definition available. + Details
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
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