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At-the-market Equity Offering Program, Common Stock Issued

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Common Stock Available for Issuance, Value Remaining

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The dollar amount of equity securities registered under the entity's registration statement.

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Amount of decrease in additional paid in capital (APIC) resulting from direct costs associated with issuing stock. Includes, but is not limited to, legal and accounting fees and direct costs associated with stock issues under a shelf registration.

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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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Aggregate dividends paid during the period for each share of common stock outstanding.

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Aggregate dividends declared during the period for each share of common stock outstanding.

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The cash outflow to reacquire common stock during the period.

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Equity impact of the value of new stock issued during the period. Includes shares issued in an initial public offering or a secondary public offering.

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Amount of stock repurchase plan authorized.

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Amount remaining of a stock repurchase plan authorized.

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Number of shares that have been repurchased during the period and are being held in treasury.

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Stockholders' Equity (Details) - USD ($) $ / shares in Units, $ in Millions	3 Months Ended
	Mar. 31, 2022	Dec. 31, 2021	Sep. 30, 2021	Jun. 30, 2021	Mar. 31, 2021	Dec. 31, 2020	Oct. 31, 2021	Apr. 30, 2021
Class of Stock [Line Items]
Stock Repurchase Program, Authorized Amount								$ 1,000.0
Treasury Stock, Shares, Acquired		2,700,000
Payments for Repurchase of Common Stock		$ 278.2
Stock Repurchase Program, Remaining Authorized Repurchase Amount		$ 268.0
Divedends declared (in dollars per sh		$ 0.225	$ 0.20	$ 0.20	$ 0.20	$ 0.20
Cash dividends paid per common share (in dollars per share)		$ 0.225	$ 0.20	$ 0.20	$ 0.20	$ 0.20
Subsequent Event [Member]
Class of Stock [Line Items]
Divedends declared (in dollars per sh	$ 0.225
Forestar Group [Member]
Class of Stock [Line Items]
Equity Securities Registered, Value							$ 750.0
At-the-market Equity Offering Program, Common Stock Available for Issuance		$ 298.2					$ 300.0
At-the-market Equity Offering Program, Common Stock Issued		84,547
Stock Issued During Period, Value, New Issues		$ 1.7
Common Stock Available for Issuance, Value Remaining		748.2
Adjustments to Additional Paid in Capital, Stock Issued, Issuance Costs		$ 0.1