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Earnings per Share / Unit (Details) $ / shares in Units, $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2021 USD ($) $ / shares shares | Dec. 31, 2020 USD ($) $ / shares shares | Dec. 31, 2019 USD ($) $ / shares shares
Numerator: |  |  |
Net income | $ 210,559 | $ 154,829 | $ 156,260
Less: |  |  |
Noncontrolling interest | 21,467 | 14,455 | 15,221
Dividends on preferred shares | 37,923 | 55,128 | 55,128
Redemption of perpetual preferred shares | 15,879 | 0 | 0
Allocation to participating securities | 418 | 217 | 166
Numerator for income per common share–basic and diluted | $ 134,872 | $ 85,029 | $ 85,745
Denominator: |  |  |
Weighted-average common shares outstanding - basic (in shares) | shares | 324,245,168 | 306,613,197 | 299,415,397
Effect of dilutive securities: Share-based compensation plan (in shares) | shares | 1,273,123 | 461,550 | 503,569
Weighted-average common shares outstanding - diluted (in shares) | shares | 325,518,291 | 307,074,747 | 299,918,966
Net income (loss) per common share/unit |  |  |
Basic (in dollars per share) | $ / shares | $ 0.42 | $ 0.28 | $ 0.29
Diluted (in dollars per share) | $ / shares | $ 0.41 | $ 0.28 | $ 0.29
Class A Units | Operating Partnership |  |  |
Net income (loss) per common share/unit |  |  |
Stock exchange ratio | 1 |  |
American Homes 4 Rent, L.P. |  |  |
Numerator: |  |  |
Net income | $ 210,559 | $ 154,829 | $ 156,260
Less: |  |  |
Dividends on preferred shares | 37,923 | 55,128 | 55,128
Redemption of perpetual preferred shares | 15,879 | 0 | 0
Allocation to participating securities | 418 | 217 | 166
Numerator for income per common share–basic and diluted | $ 156,339 | $ 99,484 | $ 100,966
Denominator: |  |  |
Weighted-average common units outstanding - basic (in shares) | shares | 375,693,107 | 358,603,291 | 352,460,401
Effect of dilutive securities: Share-based compensation plan (in shares) | shares | 1,273,123 | 461,550 | 503,569
Weighted-average common units outstanding - diluted (in shares) | shares | 376,966,230 | 359,064,841 | 352,963,970
Net income (loss) per common share/unit |  |  |
Basic (in dollars per share) | $ / shares | $ 0.42 | $ 0.28 | $ 0.29
Diluted (in dollars per share) | $ / shares | $ 0.41 | $ 0.28 | $ 0.29

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