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Owned Inventory - Total Owned Inventory by Segment (Details) - USD ($) $ in Thousands | Sep. 30, 2023 | Sep. 30, 2022
--- | --- | ---
Segment Reporting Information [Line Items] |  |
Projects in Progress | $ 1,717,745 | $ 1,702,312
Land Held for Future Development | 19,879 | 19,879
Land Held for Sale | 18,579 | 15,674
Total owned inventory | 1,756,203 | 1,737,865
Corporate and unallocated |  |
Segment Reporting Information [Line Items] |  |
Projects in Progress | 180,300 | 169,966
Land Held for Future Development | 0 | 0
Land Held for Sale | 0 | 0
Total owned inventory | 180,300 | 169,966
West | Operating Segments |  |
Segment Reporting Information [Line Items] |  |
Projects in Progress | 914,908 | 934,309
Land Held for Future Development | 3,483 | 3,483
Land Held for Sale | 14,702 | 14,998
Total owned inventory | 933,093 | 952,790
East | Operating Segments |  |
Segment Reporting Information [Line Items] |  |
Projects in Progress | 325,395 | 313,613
Land Held for Future Development | 10,888 | 10,888
Land Held for Sale | 3,201 | 0
Total owned inventory | 339,484 | 324,501
Southeast | Operating Segments |  |
Segment Reporting Information [Line Items] |  |
Projects in Progress | 297,142 | 284,424
Land Held for Future Development | 5,508 | 5,508
Land Held for Sale | 676 | 676
Total owned inventory | $ 303,326 | $ 290,608

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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 -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.6(a)) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480566/210-10-S99-1 + 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/2009/role/commonPracticeRef -Topic 210 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(6)(a)) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480566/210-10-S99-1 + Details
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- Definition Carrying amount of land available for development. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 944 -SubTopic 210 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03(a)(1)(d)) -Publisher FASB -URI https://asc.fasb.org//1943274/2147479440/944-210-S99-1 + Details
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