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Net Income Per Common Share and Net Income Per Common Unit (Details) - USD ($) $ / shares in Units, $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2021 | Dec. 31, 2020 | Dec. 31, 2019
Basic: |  |  |
Net income available to common stockholders | $ 488,554 | $ 568,870 | $ 439,286
Income from continuing operations available to common stockholders (in shares) | 65,051,465 | 65,454,057 | 65,840,422
Net income available to common stockholders/unitholders (in dollars per share) | $ 7.51 | $ 8.69 | $ 6.67
Diluted: |  |  |
Net income available to common stockholders | $ 488,554 | $ 569,653 | $ 439,286
Income from continuing operations available to common stockholders (in shares) | 65,088,874 | 65,564,982 | 65,939,455
Net income available to common stockholders/unitholders (in dollars per share) | $ 7.51 | $ 8.69 | $ 6.66
Stock Options |  |  |
Basic: |  |  |
Income effect of dilutive securities | $ 0 | $ 0 | $ 0
Effect of dilutive securities (in shares) | 37,409 | 16,678 | 99,033
Diluted: |  |  |
Anti-dilutive securities (in shares) | 116,380 | 403,458 | 115,066
DownREIT units |  |  |
Basic: |  |  |
Income effect of dilutive securities | $ 0 | $ 783 | $ 0
Effect of dilutive securities (in shares) | 0 | 94,247 | 0
Convertible Limited Partnership Units |  |  |
Diluted: |  |  |
Anti-dilutive securities (in shares) | 2,289,391 | 2,296,608 | 2,300,478
Income allocated to convertible OP Units | $ 17,200 | $ 20,000 | $ 15,300
Essex Portfolio, L.P. |  |  |
Basic: |  |  |
Net income available to common stockholders | $ 505,745 | $ 588,782 | $ 454,629
Income from continuing operations available to common stockholders (in shares) | 67,340,856 | 67,750,665 | 68,140,900
Net income available to common stockholders/unitholders (in dollars per share) | $ 7.51 | $ 8.69 | $ 6.67
Diluted: |  |  |
Net income available to common stockholders | $ 505,745 | $ 589,565 | $ 454,629
Income from continuing operations available to common stockholders (in shares) | 67,378,265 | 67,861,590 | 68,239,933
Net income available to common stockholders/unitholders (in dollars per share) | $ 7.51 | $ 8.69 | $ 6.66
Essex Portfolio, L.P. | Stock Options |  |  |
Basic: |  |  |
Income effect of dilutive securities | $ 0 | $ 0 | $ 0
Effect of dilutive securities (in shares) | 37,409 | 16,678 | 99,033
Diluted: |  |  |
Anti-dilutive securities (in shares) | 116,380 | 403,458 | 115,066
Essex Portfolio, L.P. | DownREIT units |  |  |
Basic: |  |  |
Income effect of dilutive securities | $ 0 | $ 783 | $ 0
Effect of dilutive securities (in shares) | 0 | 94,247 | 0

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