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EARNINGS PER SHARE | 9 Months Ended
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Sep. 30, 2016
Earnings Per Share [Abstract] |
EARNINGS PER SHARE | EARNINGS PER SHARE Basic and diluted earnings per common share were calculated as follows (in thousands, except per share amounts):
| Three Months Ended September 30, |  | Nine Months Ended September 30,
| 2016 |  | 2015 |  | 2016 |  | 2015
Basic weighted average number of shares outstanding | 40,022 |  |  | 39,663 |  |  | 39,958 |  |  | 39,568 |
Effect of dilutive securities: |  |  |  |  |  |  |
Convertible senior notes (1) | 2,176 |  |  | 2,176 |  |  | 2,176 |  |  | 2,176 |
Stock options and unvested restricted stock | 410 |  |  | 353 |  |  | 407 |  |  | 390 |
Diluted average shares outstanding | 42,608 |  |  | 42,192 |  |  | 42,541 |  |  | 42,134 |
Net earnings as reported | $ | 36,887 |  |  | $ | 30,308 |  |  | $ | 97,734 |  |  | $ | 75,841 |
Interest attributable to convertible senior notes, net of income taxes | 403 |  |  | 385 |  |  | 1,210 |  |  | 1,189 |
Net earnings for diluted earnings per share | $ | 37,290 |  |  | $ | 30,693 |  |  | $ | 98,944 |  |  | $ | 77,030 |
Basic earnings per share | $ | 0.92 |  |  | $ | 0.76 |  |  | $ | 2.45 |  |  | $ | 1.92 |
Diluted earnings per share (1) | $ | 0.88 |  |  | $ | 0.73 |  |  | $ | 2.33 |  |  | $ | 1.83 |
Antidilutive stock options not included in the calculation of diluted earnings per share | 17 |  |  | 3 |  |  | 5 |  |  | — |
(1) | In accordance with ASC 260-10, Earnings Per Share, ("ASC 260-10") we calculate the dilutive effect of convertible securities using the "if-converted" method.

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