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Basis of Presentation and Summary of Significant Accounting Policies - Schedule of Interests in Lot Option Agreements (Details) - Unconsolidated lot option agreements - USD ($) $ in Thousands | Sep. 30, 2025 | Sep. 30, 2024
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Real Estate Properties [Line Items] |  |
Deposits and non-refundable pre-acquisition costs incurred | $ 333,435 | $ 227,770
Remaining purchase price if lot option agreements are exercised | $ 1,610,171 | $ 1,458,679

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- Definition Land Under Purchase Options, Deposits and Non-refundable Preacquisition Costs + References No definition available. + Details
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- Definition Land Under Purchase Options, Total Remaining Obligations Under Option Agreements + References No definition available. + Details
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- Definition 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. + References No definition available. + Details
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- Details
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