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EARNINGS PER SHARE (Tables) | 6 Months Ended
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Jun. 30, 2019
Earnings Per Share [Abstract] |
Summary of Basic and Diluted Earnings Per Share | The calculation of the basic and diluted earnings per share was:
| Three Months Ended June 30, |  | Six Months Ended June 30,
(in thousands, except per share amounts) | 2019 |  | 2018 |  | 2019 |  | 2018
Basic |  |  |  |  |  |  |
Net (loss) income | $ | (32,296 | ) |  | $ | (10,409 | ) |  | $ | (61,013 | ) |  | $ | 1,791 |
Weighted-average common shares outstanding | 78,987 |  |  | 78,635 |  |  | 78,787 |  |  | 78,436 |
(Loss) earnings per share, basic | $ | (0.41 | ) |  | $ | (0.13 | ) |  | $ | (0.77 | ) |  | $ | 0.02 |
Diluted |  |  |  |  |  |  |
Net (loss) income | $ | (32,296 | ) |  | $ | (10,409 | ) |  | $ | (61,013 | ) |  | $ | 1,791 |
Weighted-average effect of dilutive securities: |  |  |  |  |  |  |
Stock options | — |  |  | — |  |  | — |  |  | 3,132 |
RSUs | — |  |  | — |  |  | — |  |  | 1,679 |
Effect of dilutive securities | — |  |  | — |  |  | — |  |  | 4,811 |
Weighted-average common shares outstanding, assuming dilution | 78,987 |  |  | 78,635 |  |  | 78,787 |  |  | 83,247 |
(Loss) earnings per share, diluted | $ | (0.41 | ) |  | $ | (0.13 | ) |  | $ | (0.77 | ) |  | $ | 0.02 |
Outstanding anti-dilutive stock options and RSUs (1) | 6,253 |  |  | 6,500 |  |  | 5,908 |  |  | 242 |
(1) Certain outstanding stock options and RSUs were excluded from the computation of diluted earnings per share because they were anti-dilutive in the period presented. These awards may be dilutive in the future.

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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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