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Stockholders' Equity Stockholders' Equity (Tables) | 9 Months Ended
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Aug. 31, 2014
Equity [Abstract] |
Summary of Changes in Stockholders’ Equity | A summary of changes in stockholders’ equity is presented below (in thousands):
|  | Nine Months Ended August 31, 2014
|  | Common Stock |  | Paid-in Capital |  | Retained Earnings |  | Accumulated Other Comprehensive Loss |  | Grantor Stock Ownership Trust |  | Treasury Stock |  | Total Stockholders’ Equity
Balance at November 30, 2013 |  | $ | 115,296 |  |  | $ | 788,893 |  |  | $ | 481,889 |  |  | $ | (17,516 | ) |  | $ | (113,911 | ) |  | $ | (718,565 | ) |  | $ | 536,086 |
Net income |  | — |  |  | — |  |  | 65,548 |  |  | — |  |  | — |  |  | — |  |  | 65,548 |
Dividends on common stock |  | — |  |  | — |  |  | (6,682 | ) |  | — |  |  | — |  |  | — |  |  | (6,682 | )
Employee stock options/other |  | 25 |  |  | 177 |  |  | — |  |  | — |  |  | — |  |  | — |  |  | 202 |
Conversion of liability awards to equity awards |  | — |  |  | 6,455 |  |  | — |  |  | — |  |  | — |  |  | — |  |  | 6,455 |
Restricted stock awards |  | 54 |  |  | (54 | ) |  | — |  |  | — |  |  | — |  |  | — |  |  | — |
Stock-based compensation |  | — |  |  | 5,959 |  |  | — |  |  | — |  |  | — |  |  | — |  |  | 5,959 |
Issuance of common stock |  | — |  |  | (135,590 | ) |  | — |  |  | — |  |  | — |  |  | 272,635 |  |  | 137,045 |
Stock repurchases |  | — |  |  | — |  |  | — |  |  | — |  |  | — |  |  | (46 | ) |  | (46 | )
Balance at August 31, 2014 |  | $ | 115,375 |  |  | $ | 665,840 |  |  | $ | 540,755 |  |  | $ | (17,516 | ) |  | $ | (113,911 | ) |  | $ | (445,976 | ) |  | $ | 744,567 |
|  | Nine Months Ended August 31, 2013
|  | Common Stock |  | Paid-in Capital |  | Retained Earnings |  | Accumulated Other Comprehensive Loss |  | 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 income |  | — |  |  | — |  |  | 11,847 |  |  | — |  |  | — |  |  | — |  |  | 11,847 |
Dividends on common stock |  | — |  |  | — |  |  | (6,272 | ) |  | — |  |  | — |  |  | — |  |  | (6,272 | )
Employee stock options/other |  | 115 |  |  | 1,443 |  |  | — |  |  | — |  |  | — |  |  | — |  |  | 1,558 |
Conversion of liability awards to equity awards |  | — |  |  | 412 |  |  | — |  |  | — |  |  | — |  |  | 7,934 |  |  | 8,346 |
Restricted stock awards |  | — |  |  | (325 | ) |  | — |  |  | — |  |  | 325 |  |  | — |  |  | — |
Stock-based compensation |  | — |  |  | 3,596 |  |  | — |  |  | — |  |  | — |  |  | — |  |  | 3,596 |
Issuance of common stock |  | — |  |  | (106,622 | ) |  | — |  |  | — |  |  | — |  |  | 216,125 |  |  | 109,503 |
Grantor stock ownership trust |  | — |  |  | 305 |  |  | — |  |  | — |  |  | 284 |  |  | — |  |  | 589 |
Stock repurchases |  | — |  |  | — |  |  | — |  |  | — |  |  | — |  |  | (7,967 | ) |  | (7,967 | )
Balance at August 31, 2013 |  | $ | 115,293 |  |  | $ | 787,388 |  |  | $ | 455,867 |  |  | $ | (27,958 | ) |  | $ | (114,540 | ) |  | $ | (718,044 | ) |  | $ | 498,006 |

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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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