Operating Partnership, Stock Exchange Ratio

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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Face amount or stated value per share of common stock.

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Percentage investment held by the managing member or general partner of the limited liability company (LLC) or limited partnership (LP).

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The number of each class of partnership units outstanding at the balance sheet date. Units represent shares of ownership of the general, limited, and preferred partners.

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The cash outflow for cost incurred directly with the issuance of an equity security.

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The cash inflow from the additional capital contribution to the entity.

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Cash received on stock transaction after deduction of issuance costs.

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The number of shares issued or sold by the subsidiary or equity method investee per stock transaction.

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Number of new stock issued during the period.

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Shareholders' Equity / Partners' Capital - Class A Common Shares (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		6 Months Ended	12 Months Ended
	Jun. 30, 2021	Sep. 30, 2020	Dec. 31, 2021	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Class A Common Shares/Units
Class of Stock [Line Items]
Offering costs				$ 200	$ 600	$ 0
Proceeds from issuance of class A common shares				$ 728,810	$ 414,100	$ 0
Class A Common Shares/Units \| Public Stock Offering
Class of Stock [Line Items]
Sale of stock, number of shares issued in transaction (in shares)	18,745,000
Stated value per share (in dollars per share)	$ 0.01	$ 0.01	$ 0.01	$ 0.01	$ 0.01
Issuance of class A common shares, net of offering costs (in shares)		14,950,000
Class A Common Shares/Units \| Public Stock Offering - Issued Directly By The Company
Class of Stock [Line Items]
Sale of stock, number of shares issued in transaction (in shares)	5,500,000
Sale of stock, consideration received on transaction	$ 194,000
Offering costs	$ 200	$ 200
Proceeds from issuance of class A common shares		$ 411,700
Class A Common Shares/Units \| Public Stock Offering - Forward Sales Agreement
Class of Stock [Line Items]
Sale of stock, number of shares issued in transaction (in shares)	13,245,000		13,245,000
Sale of stock, consideration received on transaction			$ 463,500
American Homes 4 Rent
Class of Stock [Line Items]
General partner ownership interest				86.80%	85.90%
Class A Units \| Operating Partnership
Class of Stock [Line Items]
Stock exchange ratio				1
Units outstanding (in shares)			389,374,771	389,374,771	368,383,440