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Stockholders' Equity Stockholders' Equity (Tables) | 3 Months Ended
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Feb. 28, 2013
Equity [Abstract] |
Summary of Changes in Stockholders’ Equity |
|  | Three Months Ended February 28, 2013
|  | Common Stock |  | Paid-in Capital |  | Retained Earnings |  | Accumulated Other Comprehensive Income |  | Grantor Stock Ownership Trust |  | Treasury Stock |  | Total Stockholders’ Equity
Balance at November 30, 2012 |  | $ | 115,178 |  |  | $ | 888,579 |  |  | $ | 450,292 |  |  | $ | (27,958 | ) |  | $ | (115,149 | ) |  | $ | (934,136 | ) |  | $ | 376,806 |
Net loss |  | — |  |  | — |  |  | (12,458 | ) |  | — |  |  | — |  |  | — |  |  | (12,458 | )
Dividends on common stock |  | — |  |  | — |  |  | (2,089 | ) |  | — |  |  | — |  |  | — |  |  | (2,089 | )
Restricted stock amortization |  | — |  |  | 620 |  |  | — |  |  | — |  |  | — |  |  | — |  |  | 620 |
Stock-based compensation |  | — |  |  | 393 |  |  | — |  |  | — |  |  | — |  |  | — |  |  | 393 |
Issuance of common stock |  | — |  |  | (106,314 | ) |  | — |  |  | — |  |  | — |  |  | 216,125 |  |  | 109,811 |
Grantor stock ownership trust |  | — |  |  | 20 |  |  | — |  |  | — |  |  | 32 |  |  | — |  |  | 52 |
Balance at February 28, 2013 |  | $ | 115,178 |  |  | $ | 783,298 |  |  | $ | 435,745 |  |  | $ | (27,958 | ) |  | $ | (115,117 | ) |  | $ | (718,011 | ) |  | $ | 473,135 |
|  | Three Months Ended February 29, 2012
|  | Common Stock |  | Paid-in Capital |  | Retained Earnings |  | Accumulated Other Comprehensive Income |  | Grantor Stock Ownership Trust |  | Treasury Stock |  | Total Stockholders’ Equity
Balance at November 30, 2011 |  | $ | 115,171 |  |  | $ | 884,190 |  |  | $ | 519,844 |  |  | $ | (26,152 | ) |  | $ | (118,059 | ) |  | $ | (932,337 | ) |  | $ | 442,657 |
Net loss |  | — |  |  | — |  |  | (45,802 | ) |  | — |  |  | — |  |  | — |  |  | (45,802 | )
Dividends on common stock |  | — |  |  | — |  |  | (4,818 | ) |  | — |  |  | — |  |  | — |  |  | (4,818 | )
Restricted stock amortization |  | — |  |  | 409 |  |  | — |  |  | — |  |  | — |  |  | — |  |  | 409 |
Stock-based compensation |  | — |  |  | 1,247 |  |  | — |  |  | — |  |  | — |  |  | — |  |  | 1,247 |
Grantor stock ownership trust |  | — |  |  | (81 | ) |  | — |  |  | — |  |  | 256 |  |  | — |  |  | 175 |
Balance at February 29, 2012 |  | $ | 115,171 |  |  | $ | 885,765 |  |  | $ | 469,224 |  |  | $ | (26,152 | ) |  | $ | (117,803 | ) |  | $ | (932,337 | ) |  | $ | 393,868 |

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- Definition Tabular disclosure of changes in the separate accounts comprising stockholders' equity (in addition to retained earnings) and of the changes in the number of shares of equity securities during at least the most recent annual fiscal period and any subsequent interim period presented is required to make the financial statements sufficiently informative if both financial position and results of operations are presented. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6928386&loc=d3e21463-112644 + Details
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