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Earnings Per Share | 3 Months Ended
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Feb. 29, 2016
Earnings Per Share, Basic and Diluted [Abstract] |
Earnings Per Share | Earnings Per Share Basic and diluted earnings per share were calculated as follows (in thousands, except per share amounts):
| Three Months Ended
| February 29, 2016 |  | February 28, 2015
Numerator: |  |  |
Net income | $ | 13,127 |  |  | $ | 7,799 |
Less: Distributed earnings allocated to nonvested restricted stock | (10 | ) |  | (9 | )
Less: Undistributed earnings allocated to nonvested restricted stock | (50 | ) |  | (20 | )
Numerator for basic earnings per share | 13,067 |  |  | 7,770 |
Effect of dilutive securities: |  |  |
Interest expense and amortization of debt issuance costs associated with convertible senior notes, net of taxes | 667 |  |  | 667 |
Add: Undistributed earnings allocated to nonvested restricted stock | 50 |  |  | 20 |
Less: Undistributed earnings reallocated to nonvested restricted stock | (45 | ) |  | (18 | )
Numerator for diluted earnings per share | $ | 13,739 |  |  | $ | 8,439 |
| Three Months Ended
| February 29, 2016 |  | February 28, 2015
Denominator: |  |  |
Weighted average shares outstanding — basic | 89,239 |  |  | 91,954 |
Effect of dilutive securities: |  |  |
Share-based payments | 1,786 |  |  | 1,344 |
Convertible senior notes | 8,402 |  |  | 8,402 |
Weighted average shares outstanding — diluted | 99,427 |  |  | 101,700 |
Basic earnings per share | $ | .15 |  |  | $ | .08 |
Diluted earnings per share | $ | .14 |  |  | $ | .08 |
We compute earnings per share using the two-class method, which is an allocation of earnings between the holders of common stock and a company’s participating security holders. Our outstanding nonvested shares of restricted stock contain non-forfeitable rights to dividends and, therefore, are considered participating securities for purposes of computing earnings per share pursuant to the two-class method. We had no other participating securities at February 29, 2016 or February 28, 2015. Outstanding stock options to purchase 9.7 million and 8.2 million shares of our common stock were excluded from the diluted earnings per share calculations for the three-month periods ended February 29, 2016 and February 28, 2015, respectively, because the effect of their inclusion in each case would be antidilutive. Contingently issuable shares associated with outstanding performance-based restricted stock units (each a “PSU”) were not included in the basic earnings per share calculations for the periods presented, as the applicable vesting conditions had not been satisfied.

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