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Shareholders' Equity (Details 2) |  |  |  |  | 1 Months Ended | 12 Months Ended |
--- | --- | --- | --- | --- | --- | --- | ---
Dec. 12, 2014 single_family_property property $ / shares | Jun. 14, 2013 shares | Feb. 28, 2013 single_family_property | Feb. 28, 2013 | Feb. 28, 2013 $ / shares | Feb. 28, 2013 property | Dec. 31, 2012 shares | May. 31, 2014 USD ($) shares | Jan. 31, 2014 USD ($) shares | Dec. 31, 2013 USD ($) $ / shares shares | Oct. 31, 2013 | Dec. 31, 2015 USD ($) $ / shares shares | Dec. 31, 2015 USD ($) nonperforming_loan $ / shares shares | Dec. 31, 2015 USD ($) $ / shares shares | Dec. 31, 2015 USD ($) $ / shares shares | Dec. 31, 2015 USD ($) $ / shares shares | Dec. 31, 2015 USD ($) market $ / shares shares | Dec. 31, 2014 USD ($) $ / shares shares | Dec. 31, 2013 USD ($) $ / shares shares | Jun. 10, 2013 shares
Class of Stock |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Gross proceeds from issuance of Preferred shares before offering costs | $ |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 0 |  | $ 189,433,000 | $ 212,596,000 |
Noncontrolling interest | $ |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 14,353,000 |  | $ 14,965,000 | 13,245,000 |
Period of non-participation in distributions |  |  |  |  |  |  |  |  |  |  |  | 30 months |  |  |  |  |  |  |  |
Aggregate purchase price of shares | $ |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 0 |
2,770 Property Contribution |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Class of Stock |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Number of properties contributed to the Operating Partnership |  |  | 2,770 |  |  | 2,770 |  |  |  |  |  |  |  |  |  |  |  |  |  |
Scenario Two, Two Consecutive Quarters |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Class of Stock |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Units distribution percentage |  |  |  |  |  |  |  |  |  |  |  |  |  | 70.00% |  |  |  |  |  |
Series A Preferred Stock |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Class of Stock |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Cumulative annual cash dividend rate |  |  |  |  |  |  |  |  |  |  | 5.00% |  |  | 5.00% |  |  |  | 5.00% | 5.00% |
Preferred units issued (in shares) |  |  |  |  |  |  |  |  |  | 5,060,000 |  |  |  |  |  |  |  |  | 5,060,000 |
Gross proceeds from issuance of Preferred shares before offering costs | $ |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 126,500,000 |
Offering costs | $ |  |  |  |  |  |  |  |  |  | $ 7,300,000 |  |  |  |  |  |  |  | $ 7,300,000 | $ 7,300,000 |
Dividend payable per share (in dollars per share) | $ / shares |  |  |  |  |  |  |  |  |  | $ 0.229167 |  | $ 1.25 | $ 1.25 | $ 1.25 | $ 1.25 | $ 1.25 | $ 1.25 | $ 1.25 | $ 0.229167 |
Series B Preferred Stock |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Class of Stock |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Cumulative annual cash dividend rate |  |  |  |  |  |  |  |  | 5.00% | 5.00% |  |  |  | 5.00% |  |  |  | 5.00% | 5.00% |
Preferred units issued (in shares) |  |  |  |  |  |  |  |  | 4,400,000 | 4,400,000 |  |  |  |  |  |  |  |  | 4,400,000 |
Gross proceeds from issuance of Preferred shares before offering costs | $ |  |  |  |  |  |  |  |  | $ 110,000,000 | $ 110,000,000 |  |  |  |  |  |  |  |  |  |
Offering costs | $ |  |  |  |  |  |  |  |  | $ 6,600,000 | $ 6,600,000 |  |  |  |  |  |  |  | $ 6,600,000 | $ 6,600,000 |
Dividend payable per share (in dollars per share) | $ / shares |  |  |  |  |  |  |  |  |  |  |  | 1.25 | 1.25 | $ 1.25 | 1.25 | 1.25 | 1.25 | $ 1.2875 |  |
Series C Preferred Stock |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Class of Stock |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Cumulative annual cash dividend rate |  |  |  |  |  |  |  | 5.50% |  |  |  |  |  | 5.50% |  |  |  | 5.50% | 5.50% |
Preferred units issued (in shares) |  |  |  |  |  |  |  | 7,600,000 |  | 7,600,000 |  |  |  |  |  |  |  |  | 7,600,000 |
Gross proceeds from issuance of Preferred shares before offering costs | $ |  |  |  |  |  |  |  | $ 190,000,000 |  |  |  |  |  |  |  |  |  |  | $ 190,000,000 |
Offering costs | $ |  |  |  |  |  |  |  | $ 9,700,000 |  | $ 9,700,000 |  |  |  |  |  |  |  | $ 9,700,000 | $ 9,700,000 |
Dividend payable per share (in dollars per share) | $ / shares |  |  |  |  |  |  |  |  |  |  |  | 1.375 | 1.375 | $ 1.375 | 1.375 | 1.375 | 1.375 | $ 0.912847 |  |
3.5% Convertible Perpetual Preferred Units |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Class of Stock |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Preferred Units converted into Class A units (in shares) |  | 653,492 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Class A common shares |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Class of Stock |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Dividend payable per share (in dollars per share) | $ / shares |  |  |  |  |  |  |  |  |  | $ 0.05 |  | 0.20 | 0.20 | 0.20 | 0.20 | 0.20 | 0.20 | 0.20 | $ 0.05 |
Class A common shares | Subscription Agreement |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Class of Stock |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Issuance of common shares (in shares) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 434,783 |
Purchase price per share (in dollars per share) | $ / shares |  |  |  |  |  |  |  |  |  | 17.25 |  |  |  |  |  |  |  |  | $ 17.25 |
Class A common shares | Option to purchase | Subscription Agreement |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Class of Stock |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Issuance of common shares (in shares) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 3,333,334 |
Aggregate purchase price of shares | $ |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 50,000,000 |
Purchase price per share (in dollars per share) | $ / shares |  |  |  |  |  |  |  |  |  | 15 |  |  |  |  |  |  |  |  | $ 15 |
Class B common shares |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Class of Stock |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Preferred units issued (in shares) |  | 653,492 |  |  |  |  | 653,492 |  |  |  |  |  |  |  |  |  |  |  |  |
Dividend payable per share (in dollars per share) | $ / shares |  |  |  |  |  |  |  |  |  | $ 0.05 |  | 0.2 | 0.2 | $ 0.2 | 0.2 | 0.2 | 0.2 | $ 0.20 | $ 0.05 |
Preferred shares |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Class of Stock |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Cumulative annual cash dividend rate |  |  |  |  |  |  |  |  |  |  |  |  |  | 5.00% |  |  |  |  |  |
Liquidation preference per share (in dollars per share) | $ / shares |  |  |  |  |  |  |  |  |  |  |  | $ 25 | $ 25 | $ 25 | $ 25 | $ 25 | $ 25 |  |  |
Preferred stock, cumulative change in value of index based on purchase prices of single-family properties (as a percent) |  |  |  |  |  |  |  |  |  |  |  |  |  | 50.00% |  |  |  |  |  |
Number of single-family properties located in top markets |  |  |  |  |  |  |  |  |  |  |  |  | 20 |  |  |  | 20 |  |  |
Preferred stock, maximum internal rate of return considering initial liquidation liquidation preference (as a percent) |  |  |  |  |  |  |  |  |  |  |  |  |  | 9.00% |  |  |  |  |  |
Increase in cumulative annual cash dividend rate |  |  |  |  |  |  |  |  |  |  |  |  |  | 10.00% |  |  |  |  |  |
Liquidation preference (as a percent) |  |  |  |  |  |  |  |  |  |  |  |  |  | 50.00% |  |  |  |  |  |
Initial liquidation preference | $ |  |  |  |  |  |  |  |  |  |  |  | $ 457,600,000 | $ 457,600,000 | $ 457,600,000 | $ 457,600,000 | $ 457,600,000 | $ 457,600,000 |  |  |
AH LLC |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Class of Stock |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Percentage of units outstanding |  |  |  |  |  |  |  |  |  |  |  | 22.10% | 22.10% | 22.10% | 22.10% | 22.10% | 22.10% | 21.80% |  |
Number of properties contributed to the Operating Partnership | property | 45 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
AH LLC | 3.5% Convertible Perpetual Preferred Units |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Class of Stock |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Cumulative annual cash dividend rate |  |  |  |  |  |  | 3.50% |  |  |  |  |  |  |  |  |  |  |  |  |
Preferred units issued (in shares) |  |  |  |  |  |  |  |  |  | 653,492 |  |  |  |  |  |  |  |  | 653,492 |
Preferred Units converted into Class A units (in shares) |  | 653,492 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
AH LLC | Class A common shares |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Class of Stock |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Percentage of units outstanding |  |  |  |  |  |  |  |  |  |  |  | 3.30% | 3.30% | 3.30% | 3.30% | 3.30% | 3.30% | 3.30% |  |
Class A Units | AH LLC |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Class of Stock |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Number of properties contributed to the Operating Partnership | single_family_property | 45 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Units owned (in shares) |  |  |  |  |  |  |  |  |  |  |  | 14,440,670 | 14,440,670 | 14,440,670 | 14,440,670 | 14,440,670 | 14,440,670 | 14,440,670 |  |
Closing price per share (in dollars per share) | $ / shares | $ 17.11 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Series C Convertible Units |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Class of Stock |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Dividend payable per share (in dollars per share) | $ / shares |  |  |  |  |  |  |  |  |  | $ 0.15 |  | $ 0.60 | $ 0.60 | $ 0.60 | $ 0.60 | $ 0.60 | $ 0.60 | $ 0.60 | $ 0.15 |
Series C Convertible Units | AH LLC |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Class of Stock |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Units owned (in shares) |  |  |  |  |  |  |  |  |  |  |  | 31,085,974 | 31,085,974 | 31,085,974 | 31,085,974 | 31,085,974 | 31,085,974 | 31,085,974 |  |
Series D Convertible Units | AH LLC |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Class of Stock |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Units owned (in shares) |  |  |  |  |  |  |  |  |  |  |  | 4,375,000 | 4,375,000 | 4,375,000 | 4,375,000 | 4,375,000 | 4,375,000 | 4,375,000 |  |
Series E Convertible Units | AH LLC |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Class of Stock |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Units owned (in shares) |  |  |  |  |  |  |  |  |  |  |  | 4,375,000 | 4,375,000 | 4,375,000 | 4,375,000 | 4,375,000 | 4,375,000 | 4,375,000 |  |
Operating Partnership | AH LLC | 3.5% Convertible Perpetual Preferred Units |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Class of Stock |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Annual distribution (in dollars per share) | $ / shares |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 0.53 |
Operating Partnership | Class A Units |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Class of Stock |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Stock exchange ratio |  |  |  |  |  |  |  |  |  |  |  |  |  | 1 |  |  |  |  |  |
Percentage of units outstanding |  |  |  |  |  |  |  |  |  |  |  | 93.50% | 93.50% | 93.50% | 93.50% | 93.50% | 93.50% | 93.60% |  |
Units outstanding (in shares) |  |  |  |  |  |  |  |  |  |  |  | 222,311,255 | 222,311,255 | 222,311,255 | 222,311,255 | 222,311,255 | 222,311,255 | 225,914,576 |  |
Operating Partnership | Class A Units | AH LLC |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Class of Stock |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Percentage of units outstanding |  |  |  |  |  |  |  |  |  |  |  | 6.50% | 6.50% | 6.50% | 6.50% | 6.50% | 6.50% | 6.40% |  |
Units owned (in shares) |  |  |  |  |  |  |  |  |  |  |  | 14,440,670 | 14,440,670 | 14,440,670 | 14,440,670 | 14,440,670 | 14,440,670 |  |  |
Operating Partnership | Series C Convertible Units |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Class of Stock |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Maximum percentage of property contribution per unit |  |  |  | 3.90% |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Percentage of scheduled rents |  |  |  | 98.00% |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Common stock per unit (in dollars per share) | $ / shares |  |  |  |  | $ 15.50 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Net income (loss) attributable to noncontrolling interest | $ |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 18,800,000 |  | $ 18,600,000 | $ 14,900,000 |
Operating Partnership | Series C Convertible Units | AH LLC |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Class of Stock |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Units owned (in shares) |  |  |  |  |  |  |  |  |  |  |  | 31,085,974 | 31,085,974 | 31,085,974 | 31,085,974 | 31,085,974 | 31,085,974 | 31,085,974 |  |
Operating Partnership | Series D Convertible Units |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Class of Stock |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Stock exchange ratio |  |  |  |  |  |  |  |  |  |  |  |  |  | 1 |  |  |  |  |  |
Closing price per share (in dollars per share) | $ / shares |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 18.00 |  |  |  |  |
Operating Partnership | Series D Convertible Units | Scenario One, Over Four Consecutive Quarters |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Class of Stock |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Adjusted funds from operations per common share (in dollars per share) | $ / shares |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 0.80 |  |  |  |  |
Operating Partnership | Series D Convertible Units | AH LLC |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Class of Stock |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Units owned (in shares) |  |  |  |  |  |  |  |  |  |  |  | 4,375,000 | 4,375,000 | 4,375,000 | 4,375,000 | 4,375,000 | 4,375,000 | 4,375,000 |  |
Operating Partnership | Series E Convertible Units |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Class of Stock |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Units owned (in shares) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 4,375,000 |  |
Stock split conversion ratio |  |  |  |  |  |  |  |  |  |  |  |  |  | 1 |  |  |  |  |  |
Annualized EBITDA Contribution | $ |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 14,000,000 |  |  |  |
Operating Partnership | Series E Convertible Units | Scenario Three, Measurement Period |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Class of Stock |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
EBITDA contribution | $ |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 28,000,000 |  |  |  |
Operating Partnership | Series E Convertible Units | AH LLC |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Class of Stock |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Units owned (in shares) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 4,375,000 |  | 4,375,000
Certain consolidated subsidiaries with noncontrolling interest |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Class of Stock |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Net income (loss) attributable to noncontrolling interest | $ |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | (100,000) |  | $ (300,000) | (100,000) |
Certain consolidated subsidiaries with noncontrolling interest | Preferred Units |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Class of Stock |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Net income (loss) attributable to noncontrolling interest | $ |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 0 |  | 0 | 200,000 |
Certain consolidated subsidiaries with noncontrolling interest | Class A Units |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Class of Stock |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Net income (loss) attributable to noncontrolling interest | $ |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ (4,300,000) |  | $ (3,400,000) | $ (1,800,000) |

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