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Basis of Presentation and Significant Accounting Policies (Tables) | 12 Months Ended
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Nov. 30, 2013
Accounting Policies [Abstract] |
Basic and diluted loss per share | Basic and diluted earnings (loss) per share were calculated as follows (in thousands, except per share amounts):
| Years Ended November 30,
| 2013 |  | 2012 |  | 2011
Numerator: |  |  |  |  |
Net income (loss) | $ | 39,963 |  |  | $ | (58,953 | ) |  | $ | (178,768 | )
Less: Distributed earnings allocated to nonvested restricted stock | (24 | ) |  | — |  |  | — |
Less: Undistributed earnings allocated to nonvested restricted stock | (90 | ) |  | — |  |  | — |
Numerator for basic earnings (loss) per share | 39,849 |  |  | (58,953 | ) |  | (178,768 | )
Effect of dilutive securities: |  |  |  |  |
Interest expense and amortization of debt issuance costs associated with convertible senior notes, net of taxes | 2,230 |  |  | — |  |  | — |
Add: Undistributed earnings allocated to nonvested restricted stock | 90 |  |  | — |  |  | — |
Less: Undistributed earnings reallocated to nonvested restricted stock | (81 | ) |  | — |  |  | — |
Numerator for diluted earnings (loss) per share | $ | 42,088 |  |  | $ | (58,953 | ) |  | $ | (178,768 | )
Denominator: |  |  |  |  |
Weighted average shares outstanding — basic | 82,630 |  |  | 77,106 |  |  | 77,043 |
Effect of dilutive securities: |  |  |  |  |
Share-based payments | 1,885 |  |  | — |  |  | — |
Convertible senior notes | 7,044 |  |  | — |  |  | — |
Weighted average shares outstanding — diluted | 91,559 |  |  | 77,106 |  |  | 77,043 |
Basic earnings (loss) per share | $ | .48 |  |  | $ | (.76 | ) |  | $ | (2.32 | )
Diluted earnings (loss) per share | $ | .46 |  |  | $ | (.76 | ) |  | $ | (2.32 | )

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- Definition Tabular disclosure of an entity's basic and diluted earnings per share calculations, including a reconciliation of numerators and denominators of the basic and diluted per-share computations for income from continuing operations. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6371337&loc=d3e3550-109257 + Details
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