Discounted Cash Flow Analyses, Number of Impaired Communities

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Inventory Impairment Analysis, Discount Rate

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- Definition

Number of Real Estate Properties, Completed Unsold Homes

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Threshold Number of Homes Below a Minimum Threshold of Profitability

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Value of Real Estate Properties, Completed Unsold Homes

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Amount recognized as an operating expense or loss during the period to reduce the carrying amount of a project that has been impaired but not abandoned.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 360

-SubTopic 10

-Section 45

-Paragraph 4

-URI http://asc.fasb.org/extlink&oid=8077374&loc=d3e2420-110228

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 230

-SubTopic 10

-Section 45

-Paragraph 28

-Subparagraph (b)

-URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3602-108585

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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.

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Inventory - Narrative (Details) $ in Millions	12 Months Ended
Inventory - Narrative (Details) $ in Millions	Sep. 30, 2015 USD ($) home	Sep. 30, 2014 USD ($) home Community	Sep. 30, 2013 USD ($)
Real Estate Properties [Line Items]
Number of substantially completed homes not subject to a sales contract \| home	128	205
Total value of substantially completed homes	$ 40.1	$ 48.0
Impairment of Ongoing Project	$ 0.0	$ 5.4	$ 0.1
Threshold Number of Homes Below a Minimum Threshold of Profitability \| home	10
Number of communities impaired \| Community		2
Minimum
Real Estate Properties [Line Items]
Discount rate		13.00%
Maximum
Real Estate Properties [Line Items]
Discount rate		15.00%
East \| Discontinued Operations
Real Estate Properties [Line Items]
Impairment of Ongoing Project		$ 0.1
Threshold Number of Homes Below a Minimum Threshold of Profitability \| home	10