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Shareholders' Equity - Noncontrolling Interest (Details) - shares | Sep. 30, 2016 | Feb. 29, 2016 | Feb. 28, 2016 | Dec. 31, 2015
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Operating Partnership | Class A Units |  |  |  |
Class of Stock [Line Items] |  |  |  |
Operating partnership units (in shares) |  | 1,343,843 |  |
Operating Partnership | Series D Convertible Units |  |  |  |
Class of Stock [Line Items] |  |  |  |
Ownership units owned (in shares) | 8,750,000 |  |  |
AH LLC |  |  |  |
Class of Stock [Line Items] |  |  |  |
Percentage of units outstanding | 18.60% |  |  | 22.10%
AH LLC | Class A Units |  |  |  |
Class of Stock [Line Items] |  |  |  |
Ownership units owned (in shares) | 54,276,644 |  |  | 14,440,670
AH LLC | Series C Convertible Units |  |  |  |
Class of Stock [Line Items] |  |  |  |
Ownership units owned (in shares) | 0 |  |  | 31,085,974
AH LLC | Series D Convertible Units |  |  |  |
Class of Stock [Line Items] |  |  |  |
Ownership units owned (in shares) | 0 |  |  | 4,375,000
AH LLC | Operating Partnership | Class A Units |  |  |  |
Class of Stock [Line Items] |  |  |  |
Ownership units owned (in shares) | 54,276,644 |  |  | 14,440,670
Percentage of units outstanding | 18.50% |  |  | 6.50%
Operating partnership units (in shares) | 293,987,819 |  |  | 222,311,255
AH LLC | Operating Partnership | Series C Convertible Units |  |  |  |
Class of Stock [Line Items] |  |  |  |
Ownership units owned (in shares) | 0 |  | 31,085,974 | 31,085,974
AH LLC | Operating Partnership | Series D Convertible Units |  |  |  |
Class of Stock [Line Items] |  |  |  |
Ownership units owned (in shares) | 0 |  |  | 4,375,000
American Residential Properties Inc. | Operating Partnership | Class A Units |  |  |  |
Class of Stock [Line Items] |  |  |  |
Percentage of units outstanding | 0.40% |  |  |
Operating partnership units (in shares) | 1,279,316 |  |  |

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