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Investments in Unconsolidated Joint Ventures (Details Textual) (USD $) | 3 Months Ended |  |
--- | --- | --- | ---
Feb. 29, 2012 | Feb. 28, 2011 | Feb. 29, 2012 South Edge [Member] | Nov. 30, 2011 South Edge [Member]
Investments in Unconsolidated Joint Ventures (Additional Textual) [Abstract] |  |  |  |
Outstanding debt of unconsolidated joint ventures |  |  | $ 0 | $ 0
Investments In Unconsolidated Joint Ventures (Textual) [Abstract] |  |  |  |
Equity in loss of unconsolidated joint ventures including pretax, noncash impairment charges | 0 | 53,700,000 |  |
Loss on loan guaranty |  | $ 22,758,000 |  |

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- Definition Noncash impairment charges included in equity in loss of unconsolidated joint ventures. + References No definition available. + Details
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