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v3.22.2.2

Stockholders' Equity (Details) - USD ($) $ / shares in Units, $ in Millions | 1 Months Ended | 3 Months Ended | 12 Months Ended |  |
--- | --- | --- | --- | --- | ---
Oct. 31, 2022 | Sep. 30, 2022 | Jun. 30, 2022 | Mar. 31, 2022 | Dec. 31, 2021 | Sep. 30, 2021 | Jun. 30, 2021 | Mar. 31, 2021 | Dec. 31, 2020 | Sep. 30, 2022 | Sep. 30, 2021 | Sep. 30, 2020 | Apr. 30, 2022 | Oct. 31, 2021
Common Stock, Number of Shares, Par Value and Other Disclosures [Abstract] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Common stock, shares issued |  | 399,172,937 |  |  |  | 397,190,100 |  |  |  | 399,172,937 | 397,190,100 |  |  |
Common stock, shares outstanding |  | 343,953,023 |  |  |  | 356,015,843 |  |  |  | 343,953,023 | 356,015,843 |  |  |
Preferred stock, shares issued |  | 0 |  |  |  | 0 |  |  |  | 0 | 0 |  |  |
Amount of stock repurchase authorization |  |  |  |  |  |  |  |  |  |  |  |  | $ 1,000.0 |
Treasury Stock, Common, Shares |  |  |  |  |  |  |  |  |  | 14,000,000 |  |  |  |
Payments for Repurchase of Common Stock |  |  |  |  |  |  |  |  |  | $ 1,100.0 |  |  |  |
Amount remaining under stock repurchase authorization |  | $ 438.3 |  |  |  |  |  |  |  | $ 438.3 |  |  |  |
Dividends, Common Stock [Abstract] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Cash dividends declared per common share |  | $ 0.225 | $ 0.225 | $ 0.225 | $ 0.225 | $ 0.20 | $ 0.20 | $ 0.20 | $ 0.20 |  |  |  |  |
Cash dividends paid per common share |  | $ 0.225 | $ 0.225 | $ 0.225 | $ 0.225 | $ 0.20 | $ 0.20 | $ 0.20 | $ 0.20 | $ 0.90 | $ 0.80 | $ 0.70 |  |
Forestar Group [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Common Stock, Number of Shares, Par Value and Other Disclosures [Abstract] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Equity Securities Registered, Value |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 750.0
At-the-market Equity Offering Program, Common Stock Available for Issuance |  | $ 298.2 |  |  |  |  |  |  |  | $ 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 |  |  |  |  |  |  |  | 748.2 |  |  |  |
Dividends, Common Stock [Abstract] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Adjustments to Additional Paid in Capital, Stock Issued, Issuance Costs |  |  |  |  |  |  |  |  |  | $ 0.1 |  |  |  |
Subsequent Event [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Dividends, Common Stock [Abstract] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Cash dividends declared per common share | $ 0.25 |  |  |  |  |  |  |  |  |  |  |  |  |

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