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Shareholders' Equity / Partners' Capital - Participating Preferred Shares (Details)
$ / shares in Units, $ in Thousands
 3 Months Ended 6 Months Ended 12 Months Ended
Oct. 03, 2017
Jun. 30, 2014
USD ($)
shares
Dec. 31, 2013
USD ($)
shares
Mar. 31, 2014
USD ($)
shares
Dec. 31, 2017
USD ($)
market
$ / shares
Dec. 31, 2016
USD ($)
Dec. 31, 2015
USD ($)
Class of Stock [Line Items]              
Liquidation preference per share (in dollars per share) | $ / shares         $ 25    
Series C Participating Preferred Stock              
Class of Stock [Line Items]              
Cumulative annual cash dividend rate   5.50%     5.50% 5.50% 5.50%
Liquidation preference per share (in dollars per share) | $ / shares         $ 25    
Preferred units issued (in shares) | shares   7,600,000          
Gross proceeds from issuance of Preferred shares before offering costs   $ 190,000          
Offering costs   $ 9,700          
Series A Participating Preferred Stock              
Class of Stock [Line Items]              
Cumulative annual cash dividend rate 5.00%   5.00%   5.00% 5.00% 5.00%
Liquidation preference per share (in dollars per share) | $ / shares         $ 25    
Preferred units issued (in shares) | shares     5,060,000        
Gross proceeds from issuance of Preferred shares before offering costs     $ 126,500        
Offering costs     $ 7,300        
Preferred shares              
Class of Stock [Line Items]              
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 | market         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%    
Gross proceeds from issuance of Preferred shares before offering costs         $ 270,000 $ 498,750 $ 0
Liquidation preference (as a percent)         50.00%    
Initial liquidation preference         $ 218,200    
Series B Participating Preferred Stock              
Class of Stock [Line Items]              
Cumulative annual cash dividend rate 5.00%     5.00% 5.00% 5.00% 5.00%
Liquidation preference per share (in dollars per share) | $ / shares         $ 25    
Preferred units issued (in shares) | shares       4,400,000      
Gross proceeds from issuance of Preferred shares before offering costs       $ 110,000      
Offering costs       $ 6,600