v2.4.0.8

EARNINGS / (LOSS) PER SHARE (Tables) | 3 Months Ended
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Mar. 31, 2013
Computation of Basic And Diluted Earnings Per Share | The following table sets forth the computation of basic and diluted earnings per share for the periods indicated.
|  | Three months ended March 31, |
|  | 2013 |  |  | 2012 |
Net income / (loss) |  | $ | (79,456 | ) |  | $ | 60,184 |
Weighted average shares of common stock outstanding (used to calculate basic EPS) |  |  | 81,538 |  |  |  | 72,885 |
Net effect of dilutive employee stock options based on the treasury stock method |  |  | 465 |  |  |  | 217 |
Weighted average shares of common stock outstanding (used to calculate diluted EPS) |  |  | 82,003 |  |  |  | 73,102 |
Net income / (loss) per common share - basic |  | $ | (0.97 | ) |  | $ | 0.83 |
Net income / (loss) per common share - diluted |  | $ | (0.97 | ) |  | $ | 0.82 |

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- Definition Tabular disclosure of an entity's basic and diluted earnings per share calculations. + References No definition available. + Details
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Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
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Period Type: | duration