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Note 12 - Reduction of Inventory to Fair Value (Details) - Write-offs and Lots Walked Away From - USD ($) $ in Millions | 12 Months Ended
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Oct. 31, 2015 | Oct. 31, 2014 | Oct. 31, 2013
Note 12 - Reduction of Inventory to Fair Value (Details) - Write-offs and Lots Walked Away From [Line Items] |  |  |
Amount of write-offs | $ 4.7 | $ 4.0 | $ 2.6
Homebuilding [Member] |  |  |
Note 12 - Reduction of Inventory to Fair Value (Details) - Write-offs and Lots Walked Away From [Line Items] |  |  |
Amount of write-offs | 4.7 | 4.0 | 2.6
Homebuilding [Member] | Northeast [Member] |  |  |
Note 12 - Reduction of Inventory to Fair Value (Details) - Write-offs and Lots Walked Away From [Line Items] |  |  |
Amount of write-offs | 0.9 | 0.9 | 0.7
Homebuilding [Member] | Mid-Atlantic [Member] |  |  |
Note 12 - Reduction of Inventory to Fair Value (Details) - Write-offs and Lots Walked Away From [Line Items] |  |  |
Amount of write-offs | 0.2 | 0.2 | 0.1
Homebuilding [Member] | Midwest [Member] |  |  |
Note 12 - Reduction of Inventory to Fair Value (Details) - Write-offs and Lots Walked Away From [Line Items] |  |  |
Amount of write-offs | 0.6 | 1.0 | 0.2
Homebuilding [Member] | Southeast [Member] |  |  |
Note 12 - Reduction of Inventory to Fair Value (Details) - Write-offs and Lots Walked Away From [Line Items] |  |  |
Amount of write-offs | 1.3 | 0.7 | 0.2
Homebuilding [Member] | Southwest [Member] |  |  |
Note 12 - Reduction of Inventory to Fair Value (Details) - Write-offs and Lots Walked Away From [Line Items] |  |  |
Amount of write-offs | 1.4 | $ 1.2 | $ 1.4
Homebuilding [Member] | West [Member] |  |  |
Note 12 - Reduction of Inventory to Fair Value (Details) - Write-offs and Lots Walked Away From [Line Items] |  |  |
Amount of write-offs | $ 0.3 |  |

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- Definition The charge against earnings in the period to write off costs associated with land options that were terminated. + References No definition available. + Details
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