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Inventory - Impairments and Lot Option Abandonment Charges, by Reportable Segment (Details) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended
--- | --- | ---
Jun. 30, 2016 | Jun. 30, 2015 | Jun. 30, 2016 | Jun. 30, 2015
Real Estate, Write-down or Reserve [Line Items] |  |  |  |
Impairment of inventory, projects in progress | $ 11,899 | $ 0 | $ 13,724 | $ 0
Impairment of inventory, land held for sale | 18 | 249 | 586 | 249
Total impairment and abandonment charges | 11,917 | 249 | 15,098 | 249
Corporate and unallocated |  |  |  |
Real Estate, Write-down or Reserve [Line Items] |  |  |  |
Impairment of inventory, projects in progress | 789 | 0 | 1,101 | 0
West Segment |  |  |  |
Real Estate, Write-down or Reserve [Line Items] |  |  |  |
Impairment of inventory, projects in progress | 5,216 | 0 | 6,729 | 0
East Segment |  |  |  |
Real Estate, Write-down or Reserve [Line Items] |  |  |  |
Impairment of inventory, projects in progress | 5,894 | 0 | 5,894 | 0
Impairment of inventory, land held for sale | 18 | 249 | 215 | 249
Southeast Segment |  |  |  |
Real Estate, Write-down or Reserve [Line Items] |  |  |  |
Impairment of inventory, land held for sale | 0 | 0 | 371 | 0
Abandonments | $ 0 | $ 0 | $ 788 | $ 0

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- Definition The aggregate amount of write-downs for impairments recognized during the period for long-lived assets held for abandonment, exchange or sale. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 360 -SubTopic 10 -Section 45 -Paragraph 15 -URI http://asc.fasb.org/extlink&oid=68055307&loc=d3e2611-110228 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=66902209&loc=d3e3602-108585 + Details
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