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Inventory - Summary of Interests in Lot Option Agreements (Details) - USD ($) $ in Thousands | Jun. 30, 2015 | Sep. 30, 2014
--- | --- | ---
Real Estate Properties [Line Items] |  |
Deposits and non-refundable preacquisition costs incurred | $ 51,971 | $ 43,529
Remaining obligations | 448,809 | 420,534
Land not owned under option agreements | 0 | 3,857
Consolidated VIEs |  |
Real Estate Properties [Line Items] |  |
Deposits and non-refundable preacquisition costs incurred |  | 941
Remaining obligations |  | 2,916
Land not owned under option agreements |  | 3,857
Unconsolidated lot option agreements |  |
Real Estate Properties [Line Items] |  |
Deposits and non-refundable preacquisition costs incurred | 51,971 | 42,588
Remaining obligations | $ 448,809 | $ 417,618

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- Definition Land Under Purchase Options, Consolidated and Unconsolidated VIEs, Total Remaining Obligations Under Option Agreements + References No definition available. + Details
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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 The carrying amount as of the balance sheet date of land not owned but under a contract in which the entity has an option to purchase the land. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.6(a)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + 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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