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Earnings Per Share | 3 Months Ended
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Mar. 31, 2019
Earnings Per Share [Abstract] |
Earnings Per Share | Earnings Per Share The calculation of basic and diluted earnings per share for each period presented was as follows (dollars and shares in thousands, except per share amounts):
| Three Months Ended March 31,
| 2019 |  | 2018
Net income (loss) | $ | (7,888 | ) |  | $ | 28,066 |
Basic - weighted average shares outstanding | 109,643 |  |  | 108,423 |
Dilutive effect of stock options and restricted stock | — |  |  | 2,434 |
Diluted - weighted average shares outstanding | 109,643 |  |  | 110,857 |
Earnings (loss) per share |  |  |
Basic | $ | (0.07 | ) |  | $ | 0.26 |
Diluted | $ | (0.07 | ) |  | $ | 0.25 |
The calculation of diluted earnings per share excludes approximately 3.3 million shares that were anti-dilutive for the three months ended March 31, 2018. The calculation of diluted loss per share excludes all potentially dilutive shares for the three months ended March 31, 2019 because there was a net loss for the period.

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- Definition The entire disclosure for earnings per share. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -URI http://asc.fasb.org/topic&trid=2144383 + Details
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