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Earnings (Loss) Per Share (Tables) | 3 Months Ended
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Mar. 31, 2019
Earnings Per Share [Abstract] |
Schedule of Earnings (Loss) Per Share, Basic and Diluted | The following table sets forth the computation of earnings (loss) per common share and earnings (loss) per common share - assuming dilution:
| Three Months Ended March 31,
| 2019 |  | 2018
| (Dollars in thousands, except per share data)
Numerator: |  |  |
Net income (loss) - numerator for earnings (loss) per common share | $ | (30,010 | ) |  | $ | 140,962 |
Denominator: |  |  |
Weighted average common shares outstanding | 90,883,254 |  |  | 90,017,166 |
Effect of dilutive securities: |  |  |
Stock options and deferred compensation agreements | 455,001 |  |  | 850,292 |
Restricted stock and restricted stock units | 405,504 |  |  | 271,890 |
Denominator for earnings (loss) per common share - assuming dilution | 91,743,759 |  |  | 91,139,348 |
Earnings (loss) per common share | $ | (0.33 | ) |  | $ | 1.57 |
Earnings (loss) per common share - assuming dilution | $ | (0.33 | ) |  | $ | 1.55 |

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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://fasb.org/us-gaap/role/ref/legacyRef -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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