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Earnings per Share / Unit - Operating Partnership's Computation of Net Income per Common Unit (Details) - USD ($) $ / shares in Units, $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2023 | Dec. 31, 2022 | Dec. 31, 2021
Numerator: |  |  |
Net income | $ 432,142 | $ 310,025 | $ 210,559
Less: |  |  |
Preferred distributions | 13,944 | 17,081 | 37,923
Redemption of perpetual preferred units | 0 | 5,276 | 15,879
Allocation to participating securities | 1,083 | 767 | 418
Numerator for income per common share/unit–basic | 365,141 | 250,014 | 134,872
Numerator for income per common share/unit–diluted | $ 365,141 | $ 250,014 | $ 134,872
Effect of dilutive securities: |  |  |
Share-based compensation plan and forward sale equity contracts | 452,248 | 496,244 | 1,273,123
American Homes 4 Rent, L.P. |  |  |
Numerator: |  |  |
Net income | $ 432,142 | $ 310,025 | $ 210,559
Less: |  |  |
Preferred distributions | 13,944 | 17,081 | 37,923
Redemption of perpetual preferred units | 0 | 5,276 | 15,879
Allocation to participating securities | 1,083 | 767 | 418
Numerator for income per common share/unit–basic | 417,115 | 286,901 | 156,339
Numerator for income per common share/unit–diluted | $ 417,115 | $ 286,901 | $ 156,339
Weighted-average common units outstanding: |  |  |
Weighted-average common units outstanding - basic (in shares) | 413,401,948 | 400,667,828 | 375,693,107
Effect of dilutive securities: |  |  |
Share-based compensation plan and forward sale equity contracts | 452,248 | 496,244 | 1,273,123
Weighted-average common units outstanding-diluted (in shares) | 413,854,196 | 401,164,072 | 376,966,230
Net income per common unit: |  |  |
Basic (in dollars per share) | $ 1.01 | $ 0.72 | $ 0.42
Diluted (in dollars per share) | $ 1.01 | $ 0.71 | $ 0.41

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