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Earnings per Share (Tables) | 9 Months Ended
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Sep. 30, 2015
Earnings Per Share [Abstract] |
Schedule of calculation of basic and diluted earnings per share | The following table sets forth the calculations of basic and diluted earnings per share:
| For the Three Months Ended September 30, |  | For the Nine Months Ended September 30,
| 2015 |  | 2014 |  | 2015 |  | 2014
| (in thousands, except per share amounts)
Net income (loss) | $ | 3,114 |  |  | $ | 208,938 |  |  | $ | (107,452 | ) |  | $ | 334,325 |
Basic weighted-average common shares outstanding | 67,961 |  |  | 67,379 |  |  | 67,638 |  |  | 67,169 |
Add: dilutive effect of stock options, unvested RSUs, and contingent PSUs | 158 |  |  | 1,051 |  |  | — |  |  | 1,089 |
Diluted weighted-average common shares outstanding | 68,119 |  |  | 68,430 |  |  | 67,638 |  |  | 68,258 |
Basic net income (loss) per common share | $ | 0.05 |  |  | $ | 3.10 |  |  | $ | (1.59 | ) |  | $ | 4.98 |
Diluted net income (loss) per common share | $ | 0.05 |  |  | $ | 3.05 |  |  | $ | (1.59 | ) |  | $ | 4.90 |

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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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