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Inventory (Details) (USD $) In Thousands, unless otherwise specified | 3 Months Ended | 12 Months Ended
--- | --- | ---
Oct. 31, 2012 | Jul. 31, 2012 | Apr. 30, 2012 | Jan. 31, 2012 | Oct. 31, 2011 | Jul. 31, 2011 | Apr. 30, 2011 | Jan. 31, 2011 | Oct. 31, 2010 | Jul. 31, 2010 | Apr. 30, 2010 | Jan. 31, 2010 | Oct. 31, 2012 | Oct. 31, 2011 | Oct. 31, 2010
Total Inventory |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Inventory | $ 3,761,187 |  |  |  | $ 3,416,723 |  |  |  |  |  |  |  | $ 3,761,187 | $ 3,416,723 |
Inventory impairment charges and expensing of costs that not to be recoverable |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Inventory impairments and write-offs |  |  |  |  |  |  |  |  |  |  |  |  | 14,739 | 51,837 | 115,258
Land controlled for future communities [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Total Inventory |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Inventory | 56,300 |  |  |  | 46,581 |  |  |  |  |  |  |  | 56,300 | 46,581 |
Inventory impairment charges and expensing of costs that not to be recoverable |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Inventory impairments and write-offs |  |  |  |  |  |  |  |  |  |  |  |  | 451 | 17,752 | 6,069
Land owned for future communities [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Total Inventory |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Inventory | 1,040,373 |  |  |  | 979,145 |  |  |  |  |  |  |  | 1,040,373 | 979,145 |
Inventory impairment charges and expensing of costs that not to be recoverable |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Inventory impairments and write-offs |  |  |  |  |  |  |  |  |  |  |  |  | 1,218 | 17,000 | 55,700
Operating communities [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Total Inventory |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Inventory | 2,664,514 |  |  |  | 2,390,997 |  |  |  |  |  |  |  | 2,664,514 | 2,390,997 |
Inventory impairment charges and expensing of costs that not to be recoverable |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Inventory impairments and write-offs | $ 1,400 | $ 2,685 | $ 2,560 | $ 6,425 | $ 710 | $ 175 | $ 10,725 | $ 5,475 | $ 9,119 | $ 6,600 | $ 15,020 | $ 22,750 | $ 13,070 | $ 17,085 | $ 53,489

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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 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 + 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 Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 28 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 2: 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=6880815&loc=d3e20235-122688 Reference 3: 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=6386783&loc=d3e4542-108314 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Concepts (CON) -Number 6 -Paragraph 86 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Accounting Research Bulletin (ARB) -Number 43 -Section 7 -Paragraph 14 -Chapter 4 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. + Details
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