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Joint Ventures - Additional Information (Detail) $ in Thousands | Sep. 30, 2025 USD ($) lot joint_venture | Dec. 31, 2024 USD ($)
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Joint Ventures [Line Items] |  |
Aggregate investment | $ 66,500 |
Number of joint ventures | joint_venture | 5 |
Expected production of finished lots | lot | 7,300 |
Total lots controlled by company under the joint venture | lot | 6,950 |
Total lots either under contract with unrelated parties or not under the current contract | lot | 350 |
Additional funding commitments in the aggregate | $ 11,700 |
Other Assets |  |
Joint Ventures [Line Items] |  |
Aggregate investment |  | $ 29,300
Home Building Segment |  |
Joint Ventures [Line Items] |  |
Restricted cash and cash equivalents | 44,034 | 42,172
Accrued expenses and other liabilities | $ 344,658 | $ 441,300

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