Inventory - Total Owned Inventory by Segment (Details) - USD ($) $ in Thousands	Jun. 30, 2016	Sep. 30, 2015
Segment Reporting Information [Line Items]
Projects in Progress	$ 1,471,911	$ 1,382,045
Land held for future development	221,148	270,990
Land held for sale	38,791	44,555
Total owned inventory	1,731,850	1,697,590
Corporate and unallocated
Segment Reporting Information [Line Items]
Projects in Progress	194,246	168,430
Land held for future development	0	0
Land held for sale	1,100	1,100
Total owned inventory	195,346	169,530
West Segment
Segment Reporting Information [Line Items]
Projects in Progress	651,000	583,210
Land held for future development	180,233	230,778
Land held for sale	5,413	6,941
Total owned inventory	836,646	820,929
East Segment
Segment Reporting Information [Line Items]
Projects in Progress	316,779	353,054
Land held for future development	29,918	29,280
Land held for sale	26,339	30,927
Total owned inventory	373,036	413,261
Southeast Segment
Segment Reporting Information [Line Items]
Projects in Progress	309,886	277,351
Land held for future development	10,997	10,932
Land held for sale	5,939	5,587
Total owned inventory	$ 326,822	$ 293,870

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

No definition available.

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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

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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

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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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