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Inventory - Total Owned Inventory by Segment (Details) - USD ($) $ in Thousands | Dec. 31, 2015 | Sep. 30, 2015
--- | --- | ---
Segment Reporting Information [Line Items] |  |
Projects in Progress (a) | $ 1,404,070 | $ 1,382,045
Land held for future development | 271,321 | 270,990
Land held for sale | 54,546 | 44,555
Total owned inventory | 1,729,937 | 1,697,590
West Segment |  |
Segment Reporting Information [Line Items] |  |
Projects in Progress (a) | 598,776 | 583,210
Land held for future development | 231,119 | 230,778
Land held for sale | 6,571 | 6,941
Total owned inventory | 836,466 | 820,929
East Segment |  |
Segment Reporting Information [Line Items] |  |
Projects in Progress (a) | 349,678 | 353,054
Land held for future development | 29,280 | 29,280
Land held for sale | 30,279 | 30,927
Total owned inventory | 409,237 | 413,261
Southeast Segment |  |
Segment Reporting Information [Line Items] |  |
Projects in Progress (a) | 274,772 | 277,351
Land held for future development | 10,922 | 10,932
Land held for sale | 16,597 | 5,587
Total owned inventory | 302,291 | 293,870
Corporate and unallocated |  |
Segment Reporting Information [Line Items] |  |
Projects in Progress (a) | 180,844 | 168,430
Land held for future development | 0 | 0
Land held for sale | 1,099 | 1,100
Total owned inventory | $ 181,943 | $ 169,530

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- Definition Carrying amount as of the balance sheet date of parcels of land held for sale, and on which the entity has no intention or no further intention to perform construction activities. + 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 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 6 -Subparagraph a -Article 5 + Details
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- Definition The net carrying amount as of the balance sheet date of the sum of the various components of an operative builder's inventory, including finished homes. Operative builders primarily consist of entities that develop land, construct residential homes and commercial and industrial buildings thereon, and sell them to home buyers and operators of the commercial and industrial properties. + 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 Carrying amount of land available for development. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03.(a),1(d)) -URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 03 -Paragraph 1 -Subparagraph d -Article 7 + Details
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