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

Carrying amount as of the balance sheet date of project in progress

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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

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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

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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

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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.

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