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Debt - Narrative (Details)
$ in Thousands
 3 Months Ended 9 Months Ended
Sep. 30, 2024
USD ($)
extensionOption
home
Jun. 30, 2024
USD ($)
Mar. 31, 2024
USD ($)
home
Sep. 30, 2023
USD ($)
Sep. 30, 2024
USD ($)
extensionOption
Sep. 30, 2023
USD ($)
Dec. 31, 2023
USD ($)
Debt Instrument [Line Items]              
Loss on early extinguishment of debt $ 5,306     $ 0 $ 6,323 $ 0  
Proceeds from unsecured senior notes, net of discount         1,096,633 $ 0  
Deferred financing costs, net $ 26,066       $ 26,066   $ 22,530
Extension period 6 months            
Line of Credit | Revolving Credit Facility              
Debt Instrument [Line Items]              
Loss on early extinguishment of debt $ 4,800            
Interest rate 5.91%       5.91%    
Maximum borrowing capacity $ 1,250,000       $ 1,250,000    
Number of extension options | extensionOption 2       2    
Extension period         6 months    
Line of Credit | Revolving Credit Facility | Variable Rate Component One              
Debt Instrument [Line Items]              
Basis spread on variable rate         0.10%    
Line of Credit | Revolving Credit Facility | Variable Rate Component One | SOFR              
Debt Instrument [Line Items]              
Basis spread on variable rate 0.10%            
Line of Credit | Revolving Credit Facility | Variable Rate Component One | SOFR | Minimum              
Debt Instrument [Line Items]              
Basis spread on variable rate 0.725%            
Line of Credit | Revolving Credit Facility | Variable Rate Component One | SOFR | Maximum              
Debt Instrument [Line Items]              
Basis spread on variable rate 1.40%            
Line of Credit | Revolving Credit Facility | Variable Rate Component Two              
Debt Instrument [Line Items]              
Basis spread on variable rate         0.85%    
Line of Credit | Revolving Credit Facility | Variable Rate Component Two | SOFR              
Debt Instrument [Line Items]              
Basis spread on variable rate 1.10%            
Line of Credit | Revolving Credit Facility | Variable Rate Component Two | Federal Funds Rate              
Debt Instrument [Line Items]              
Basis spread on variable rate 0.50%            
Line of Credit | Revolving Credit Facility | Variable Rate Component Two | Base Rate | Minimum              
Debt Instrument [Line Items]              
Basis spread on variable rate 0.00%            
Line of Credit | Revolving Credit Facility | Variable Rate Component Two | Base Rate | Maximum              
Debt Instrument [Line Items]              
Basis spread on variable rate 0.40%            
AMH 2014-SFR2 securitization, net | Secured Debt              
Debt Instrument [Line Items]              
Outstanding principal paid     $ 460,600        
Loss on early extinguishment of debt     $ 1,000        
Interest rate 4.42%       4.42%    
AMH 2014-SFR2 securitization, net | Secured Debt | Single Family Homes              
Debt Instrument [Line Items]              
Number of collateralized homes released | home     4,516        
Restricted cash released     $ 10,300        
Proceeds from asset-backed securitization certificates in investment payoff     $ 25,700        
AMH 2014-SFR3 securitization, net | Secured Debt              
Debt Instrument [Line Items]              
Outstanding principal paid $ 471,800            
Loss on early extinguishment of debt $ 500            
Interest rate 4.40%       4.40%    
AMH 2014-SFR3 securitization, net | Secured Debt | Single Family Homes              
Debt Instrument [Line Items]              
Number of collateralized homes released | home 4,541            
Restricted cash released $ 10,900            
2034 unsecured senior notes I              
Debt Instrument [Line Items]              
Redemption price (in percent)     100.00%        
2034 unsecured senior notes I | Senior Notes              
Debt Instrument [Line Items]              
Debt instrument face amount     $ 600,000        
Interest rate 5.50%   5.50%   5.50%    
Proceeds from unsecured senior notes, net of discount     $ 595,500        
Underwriting fees     3,900        
Unamortized discount     600        
Deferred financing costs, net     $ 1,300        
2034 unsecured senior notes II              
Debt Instrument [Line Items]              
Redemption price (in percent)   100.00%          
2034 unsecured senior notes II | Senior Notes              
Debt Instrument [Line Items]              
Debt instrument face amount   $ 500,000          
Interest rate 5.50% 5.50%     5.50%    
Proceeds from unsecured senior notes, net of discount   $ 494,000          
Underwriting fees   3,300          
Unamortized discount   2,700          
Deferred financing costs, net   $ 1,100