Inventory - Total Owned Inventory by Segment (Details) - USD ($) $ in Thousands	Jun. 30, 2015	Sep. 30, 2014
Segment Reporting Information [Line Items]
Projects in Progress (a)	$ 1,495,268	$ 1,204,776
Land held for future development	270,619	301,048
Land held for sale	56,203	51,672
Total owned inventory	1,822,090	1,557,496
West Segment
Segment Reporting Information [Line Items]
Projects in Progress (a)	626,772	462,508
Land held for future development	230,481	260,898
Land held for sale	8,268	10,026
Total owned inventory	865,521	733,432
East Segment
Segment Reporting Information [Line Items]
Projects in Progress (a)	392,716	353,859
Land held for future development	29,215	29,239
Land held for sale	32,057	34,530
Total owned inventory	453,988	417,628
Southeast Segment
Segment Reporting Information [Line Items]
Projects in Progress (a)	303,225	264,843
Land held for future development	10,923	10,911
Land held for sale	14,778	4,821
Total owned inventory	328,926	280,575
Corporate and unallocated
Segment Reporting Information [Line Items]
Projects in Progress (a)	172,555	123,566
Land held for future development	0	0
Land held for sale	1,100	2,295
Total owned inventory	$ 173,655	$ 125,861

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

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-Name Regulation S-X (SX)

-Number 210

-Section 03

-Paragraph 1

-Subparagraph d

-Article 7

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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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