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Shareholders' Equity / Partners' Capital - Class A Common Shares / Units (Details)
$ / shares in Units, $ in Thousands
 3 Months Ended 6 Months Ended 12 Months Ended
Mar. 31, 2023
USD ($)
shares
Sep. 30, 2022
USD ($)
shares
Mar. 31, 2022
USD ($)
$ / shares
shares
Jun. 30, 2021
USD ($)
$ / shares
shares
Dec. 31, 2021
USD ($)
shares
Dec. 31, 2023
USD ($)
$ / shares
shares
Dec. 31, 2022
USD ($)
$ / shares
shares
Dec. 31, 2021
USD ($)
Class of Stock [Line Items]                
Stock exchange ratio           1    
Class A common shares                
Class of Stock [Line Items]                
Par value per share (in dollars per share) | $ / shares           $ 0.01 $ 0.01  
Offering costs | $           $ 400 $ 200 $ 200
Class A common shares | Public Stock Offering                
Class of Stock [Line Items]                
Sale of stock, number of shares issued in transaction (in shares) | shares     23,000,000 18,745,000        
Par value per share (in dollars per share) | $ / shares     $ 0.01 $ 0.01        
Class A common shares | Public Stock Offering - Issued Directly By The Company                
Class of Stock [Line Items]                
Sale of stock, number of shares issued in transaction (in shares) | shares     10,000,000 5,500,000        
Sale of stock, consideration received on transaction | $     $ 375,800 $ 194,000        
Offering costs | $     $ 200 $ 200        
Class A common shares | Public Stock Offering - Forward Sales Agreement                
Class of Stock [Line Items]                
Sale of stock, number of shares issued in transaction (in shares) | shares 8,000,000 5,000,000 13,000,000 13,245,000 13,245,000      
Sale of stock, consideration received on transaction | $ $ 298,400 $ 185,600     $ 463,500      
American Homes 4 Rent                
Class of Stock [Line Items]                
General partner ownership interest           87.70% 87.30%  
Class A common units | Operating Partnership                
Class of Stock [Line Items]                
Operating partnership units (in shares) | shares           416,308,486 404,893,881