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EARNINGS PER SHARE (Tables) | 12 Months Ended
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Dec. 31, 2015
Earnings Per Share [Abstract] |
Schedule of Basic and Diluted Earnings per Common Share | Basic and diluted earnings per common share were calculated as follows (in thousands, except per share amounts):
|  | Years Ended December 31,
|  | 2015 |  | 2014 |  | 2013
Basic weighted average number of shares outstanding |  | 39,593 |  |  | 39,017 |  |  | 36,105 |
Effect of dilutive securities: |  |  |  |  |  |
Convertible debt (1) |  | 2,176 |  |  | 2,176 |  |  | 2,176 |
Stock options and unvested restricted stock |  | 395 |  |  | 421 |  |  | 520 |
Diluted average shares outstanding |  | 42,164 |  |  | 41,614 |  |  | 38,801 |
Net earnings as reported |  | $ | 128,738 |  |  | $ | 142,241 |  |  | $ | 124,464 |
Interest attributable to convertible senior notes, net of income taxes |  | 1,597 |  |  | 1,573 |  |  | 1,454 |
Net earnings for diluted earnings per share |  | $ | 130,335 |  |  | $ | 143,814 |  |  | $ | 125,918 |
Basic earnings per share |  | $ | 3.25 |  |  | $ | 3.65 |  |  | $ | 3.45 |
Diluted earnings per share (1) |  | $ | 3.09 |  |  | $ | 3.46 |  |  | $ | 3.25 |
Antidilutive stock options not included in the calculation of diluted earnings per share |  | — |  |  | 26 |  |  | 7 |
(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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- 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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