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Owned Inventory - Total Owned Inventory by Segment (Details) - USD ($) $ in Thousands | Mar. 31, 2022 | Sep. 30, 2021
--- | --- | ---
Segment Reporting Information [Line Items] |  |
Projects in progress | $ 1,642,926 | $ 1,472,544
Land held for future development | 19,879 | 19,879
Land held for sale | 14,167 | 9,179
Total owned inventory | 1,676,972 | 1,501,602
Corporate and unallocated |  |
Segment Reporting Information [Line Items] |  |
Projects in progress | 170,886 | 156,779
Land held for future development | 0 | 0
Land held for sale | 0 | 0
Total owned inventory | 170,886 | 156,779
West | Operating Segments |  |
Segment Reporting Information [Line Items] |  |
Projects in progress | 876,616 | 781,036
Land held for future development | 3,483 | 3,483
Land held for sale | 11,726 | 4,478
Total owned inventory | 891,825 | 788,997
East | Operating Segments |  |
Segment Reporting Information [Line Items] |  |
Projects in progress | 294,345 | 264,991
Land held for future development | 10,888 | 10,888
Land held for sale | 0 | 584
Total owned inventory | 305,233 | 276,463
Southeast | Operating Segments |  |
Segment Reporting Information [Line Items] |  |
Projects in progress | 301,079 | 269,738
Land held for future development | 5,508 | 5,508
Land held for sale | 2,441 | 4,117
Total owned inventory | $ 309,028 | $ 279,363

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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://fasb.org/us-gaap/role/ref/legacyRef -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=120391452&loc=d3e13212-122682 + 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://fasb.org/us-gaap/role/ref/legacyRef -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=120391452&loc=d3e13212-122682 + Details
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- Definition Carrying amount of land available for development. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -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=120400017&loc=d3e572229-122910 + Details
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