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Earnings Per Share (Tables) | 12 Months Ended
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Dec. 31, 2013
Earnings Per Share [Abstract] |
Computation of basic and diluted net income per share | The following table reconciles the numerator and the denominator used to calculate basic and diluted earnings per share:
|  | Year ended December 31, |
|  | 2013 |  |  | 2012 |  |  | 2011 |
Numerator- net income |  | $ | 174,539 |  |  | $ | 93,223 |  |  | $ | 324,643 |
Denominator- weighted average shares |  |  |  |  |  |  |  |  |  |  |  |
Basic |  |  | 68,081,632 |  |  |  | 67,360,632 |  |  |  | 67,130,356 |
Dilutive effect of stock compensation awards (1) |  |  | 1,585,897 |  |  |  | 1,832,506 |  |  |  | 667,015 |
Diluted |  |  | 69,667,529 |  |  |  | 69,193,138 |  |  |  | 67,797,371 |
Net income per share |  |  |  |  |  |  |  |  |  |  |  |
Basic |  | $ | 2.56 |  |  | $ | 1.38 |  |  | $ | 4.84 |
Diluted |  | $ | 2.51 |  |  | $ | 1.35 |  |  | $ | 4.79 |
(1) Excludes approximately 10,300 and 363,000 stock options and restricted stock awards for the twelve month periods ended December 31, 2013 and December 31, 2012, respectively, as the impact of such awards was anti-dilutive. There were no anti-dilutive awards for the twelve month period ended December 31, 2011.

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- Definition Tabular disclosure of the numerators and the denominators of the basic and diluted per-share (or per-unit) computations for income from continuing operations, including the effect that has been given to preferred dividends. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=6371337&loc=d3e3550-109257 + Details
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