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Basis of Presentation and Significant Accounting Policies (Tables) | 9 Months Ended
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Aug. 31, 2012
Organization, Consolidation and Presentation of Financial Statements [Abstract] |
Schedule of Basic and Diluted Loss Per Share | Basic and diluted earnings (loss) per share were calculated as follows (in thousands, except per share amounts):
| Nine Months Ended August 31, |  | Three Months Ended August 31,
| 2012 |  | 2011 |  | 2012 |  | 2011
Numerator: |  |  |  |  |  |  |
Net income (loss) | $ | (66,677 | ) |  | $ | (192,679 | ) |  | $ | 3,261 |  |  | $ | (9,649 | )
Denominator: |  |  |  |  |  |  |
Basic average shares outstanding | 77,107 |  |  | 77,004 |  |  | 77,127 |  |  | 77,047 |
Net effect of stock options assumed to be exercised | — |  |  | — |  |  | 231 |  |  | — |
Diluted average shares outstanding | 77,107 |  |  | 77,004 |  |  | 77,358 |  |  | 77,047 |
Basic earnings (loss) per share | $ | (.86 | ) |  | $ | (2.50 | ) |  | $ | .04 |  |  | $ | (.13 | )
Diluted earnings (loss) per share | $ | (.86 | ) |  | $ | (2.50 | ) |  | $ | .04 |  |  | $ | (.13 | )

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- Definition Tabular disclosure of an entity's basic and diluted earnings per share calculations. + References No definition available. + Details
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