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Inventory - Summary of Interests in Lot Option Agreements (Details) - Unconsolidated lot option agreements - USD ($) $ in Thousands | Mar. 31, 2018 | Sep. 30, 2017
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Real Estate Properties [Line Items] |  |
Deposits & Non-refundable Pre-acquisition Costs Incurred | $ 78,971 | $ 91,854
Remaining Obligation | $ 341,737 | $ 408,300

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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 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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