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Investments in Unconsolidated Joint Ventures (Details Textual) (USD $) | 3 Months Ended | 12 Months Ended
--- | --- | ---
May 31, 2011 | Feb. 28, 2011 | Nov. 30, 2011 ac | Nov. 30, 2010 | Nov. 30, 2009
Additional Investments in Unconsolidated Joint Ventures (Textual) |  |  |  |  |
Investment in newly created unconsolidated joint venture |  |  | $ 75,500,000 |  |
Investments In Unconsolidated Joint Ventures (Textual) [Abstract] |  |  |  |  |
Loss on Loan Guarantee | 14,600,000 | 22,800,000 | 30,765,000 |  |
Equity in loss of unconsolidated joint ventures including pretax, noncash impairment charges |  | 53,700,000 | 53,700,000 | 0 | 38,500,000
Initial Capital Contribution to Joint Venture |  |  | 300,000 |  |
Impairment charges |  |  | 0 |  |
Anticipated land to be acquired owned by unconsolidated joint venture in acre |  |  | 600 |  |
Annual appreciation on average selling price for homes |  |  | 5.00% |  |
Fair Value Estimation Assumption Expected Life of Project |  |  | 15 years |  |
Appreciation on cost for development work |  |  | 10.00% |  |
Appreciation on home construction cost |  |  | 1.00% |  |
South Edge [Member] |  |  |  |  |
Additional Investments in Unconsolidated Joint Ventures (Textual) |  |  |  |  |
Outstanding debt of unconsolidated joint ventures |  |  | 0 | 327,856,000 |
Estimated fair value of share of South Edge Land |  |  | 75,200,000 |  |
Net Payment Obligation |  |  | 251,900,000 |  |
Investment in newly created unconsolidated joint venture |  |  | 75,200,000 |  |
Investments In Unconsolidated Joint Ventures (Textual) [Abstract] |  |  |  |  |
Aggregate outstanding secured debt |  |  | $ 0 | $ 327,856,000 |

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- Definition This item represents an other than temporary decline in value that has been recognized against an investment accounted for under the equity method of accounting. The excess of the carrying amount over the fair value of the investment represents the amount of the write down which is or was reflected in earnings. The written down value is a new cost basis with the adjusted value of the investment becoming its new carrying value subject to the equity accounting method. Evidence of a loss in value might include, but would not necessarily be limited to, absence of an ability to recover the carrying amount of the investment or inability of the investee to sustain an earnings capacity which would justify the carrying amount of the investment. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Accounting Principles Board Opinion (APB) -Number 18 -Paragraph 19 -Subparagraph h -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 323 -SubTopic 10 -Section 35 -Paragraph 32 -URI http://asc.fasb.org/extlink&oid=6903645&loc=d3e32787-111569 + Details
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- Definition This element represents the portion of the balance sheet assertion valued at fair value by the entity whether such amount is presented as a separate caption or as a parenthetical disclosure. Additionally, this element may be used in connection with the fair value disclosures required in the footnote disclosures to the financial statements. The element may be used in both the balance sheet and disclosure in the same submission. This item represents investments accounted for under the equity method of accounting as of the balance sheet date. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Accounting Principles Board Opinion (APB) -Number 18 -Paragraph 6 -Subparagraph b -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 323 -SubTopic 10 -Section 25 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6903542&loc=d3e32014-111567 + Details
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