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Consolidated Balance Sheets (Parenthetical) - $ / shares	Dec. 31, 2020	Dec. 31, 2019
Preferred shares, par value (in dollars per share)	$ 0.01	$ 0.01
Preferred shares, shares authorized (in shares)	100,000,000	100,000,000
Preferred shares, shares issued (in shares)	35,350,000	35,350,000
Preferred shares, shares outstanding (in shares)	35,350,000	35,350,000
American Homes 4 Rent, L.P. | General Partner
Common stock, shares outstanding (in shares)	316,656,460
Common units, shares/units issued (in shares)	316,656,460	300,742,674
Common units, shares/units outstanding (in shares)		300,742,674
Preferred units, shares/units issued (in shares)	35,350,000	35,350,000
Preferred units, shares/units outstanding (in shares)	35,350,000	35,350,000
American Homes 4 Rent, L.P. | Limited Partners
Common units, shares/units issued (in shares)	51,726,980	52,026,980
Common units, shares/units outstanding (in shares)	51,726,980	52,026,980
Class A Common Shares/units
Common shares, par value (in dollars per share)	$ 0.01	$ 0.01
Common shares, shares authorized (in shares)	450,000,000	450,000,000
Common stock, shares issued (in shares)	316,021,385	300,107,599
Common stock, shares outstanding (in shares)	316,021,385	300,107,599
Class B common shares
Common shares, par value (in dollars per share)	$ 0.01	$ 0.01
Common shares, shares authorized (in shares)	50,000,000	50,000,000
Common stock, shares issued (in shares)	635,075	635,075
Common stock, shares outstanding (in shares)	635,075	635,075

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