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Inventory - Results of Discounted Cash Flow Analysis (Details) (USD $) In Thousands, unless otherwise specified | 3 Months Ended
--- | ---
Dec. 31, 2012 | Dec. 31, 2011
Continuing Operations |  |
Real Estate, Write-down or Reserve [Line Items] |  |
Impairment Charges | $ 59 | $ 2,284
Continuing Operations | West Segment |  |
Real Estate, Write-down or Reserve [Line Items] |  |
Impairment Charges | 46 | 1,996
Continuing Operations | East Segment |  |
Real Estate, Write-down or Reserve [Line Items] |  |
Impairment Charges | 13 | 122
Continuing Operations | Southeast Segment |  |
Real Estate, Write-down or Reserve [Line Items] |  |
Impairment Charges | 0 | 118
Continuing Operations | Unallocated |  |
Real Estate, Write-down or Reserve [Line Items] |  |
Impairment Charges | 0 | 48
Discontinued Operations |  |
Real Estate, Write-down or Reserve [Line Items] |  |
Impairment Charges | 0 | 16
Discounted Cash Flow Analysis [Member] |  |
Real Estate, Write-down or Reserve [Line Items] |  |
Number of communities impaired |  | 1
Number of lots impaired |  | 51
Impairment Charges |  | 1,996
Estimated fair value of impaired inventory |  | 6,377
Discounted Cash Flow Analysis [Member] | Continuing Operations |  |
Real Estate, Write-down or Reserve [Line Items] |  |
Number of communities impaired |  | 1
Number of lots impaired |  | 51
Impairment Charges |  | 1,996
Estimated fair value of impaired inventory |  | 6,377
Discounted Cash Flow Analysis [Member] | Continuing Operations | West Segment |  |
Real Estate, Write-down or Reserve [Line Items] |  |
Number of communities impaired |  | 1
Number of lots impaired |  | 51
Impairment Charges |  | 1,996
Estimated fair value of impaired inventory |  | 6,377
Discounted Cash Flow Analysis [Member] | Continuing Operations | East Segment |  |
Real Estate, Write-down or Reserve [Line Items] |  |
Number of communities impaired |  | 0
Number of lots impaired |  | 0
Impairment Charges |  | 0
Estimated fair value of impaired inventory |  | 0
Discounted Cash Flow Analysis [Member] | Continuing Operations | Southeast Segment |  |
Real Estate, Write-down or Reserve [Line Items] |  |
Number of communities impaired |  | 0
Number of lots impaired |  | 0
Impairment Charges |  | 0
Estimated fair value of impaired inventory |  | 0
Discounted Cash Flow Analysis [Member] | Continuing Operations | Unallocated |  |
Real Estate, Write-down or Reserve [Line Items] |  |
Number of communities impaired |  | 0
Number of lots impaired |  | 0
Impairment Charges |  | 0
Estimated fair value of impaired inventory |  | 0
Discounted Cash Flow Analysis [Member] | Discontinued Operations |  |
Real Estate, Write-down or Reserve [Line Items] |  |
Number of communities impaired |  | 0
Number of lots impaired |  | 0
Impairment Charges |  | 0
Estimated fair value of impaired inventory |  | $ 0

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