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Fair Value Disclosures (Level 4 inventory fv) (Details 4) (USD $) In Thousands, unless otherwise specified | 3 Months Ended | 9 Months Ended | 12 Months Ended
--- | --- | --- | ---
Jul. 31, 2013 | Apr. 30, 2013 | Jan. 31, 2013 | Oct. 31, 2012 | Jul. 31, 2012 | Apr. 30, 2012 | Jan. 31, 2012 | Jul. 31, 2013 | Jul. 31, 2012 | Oct. 31, 2012
Statement of Inventory [Line Items] |  |  |  |  |  |  |  |  |  |
Number of Operating Communities Tested | 76 | 79 | 60 | 108 | 115 | 115 | 113 |  |  |
Number of Communities Impaired | 1 | 1 | 2 | 3 | 4 | 2 | 8 |  |  |
Fair Value of the Impaired Inventory | $ 191 | $ 749 | $ 5,377 | $ 9,319 | $ 6,609 | $ 22,962 | $ 49,758 |  |  |
Inventory Write-down | 239 |  |  |  | 3,120 |  |  | 1,977 | 13,249 |
Operating communities [Member] |  |  |  |  |  |  |  |  |  |
Statement of Inventory [Line Items] |  |  |  |  |  |  |  |  |  |
Inventory Write-down | $ 100 | $ 340 | $ 700 | $ 1,400 | $ 2,685 | $ 2,560 | $ 6,425 | $ 1,140 | $ 11,670 | $ 13,070

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- Definition Fair value of the impaired inventory. + References No definition available. + Details
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- Definition Number of communities for which the company recognized impairment charges. + References No definition available. + Details
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- Definition Number of operating communities tested for potential impairment. + References No definition available. + Details
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- Details
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- Definition Charge to cost of goods sold that represents the reduction of the carrying amount of inventory, generally attributable to obsolescence or market conditions. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 225 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03.2) -URI http://asc.fasb.org/extlink&oid=26872669&loc=d3e20235-122688 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 330 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=28360613&loc=d3e4542-108314 + Details
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