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Earnings Per Share | 6 Months Ended
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Jun. 30, 2018
Earnings Per Share [Abstract] |
Earnings Per Share | 12. EARNINGS PER SHARE A summary of the calculation of basic and diluted earnings per share for the three and six months ended June 30, 2018 and 2017 is as follows:
|  | Three Months Ended |  |  | Six Months Ended |
|  | June 30, |  |  | June 30, |
(In thousands, except per share amounts) |  | 2018 |  |  | 2017 |  |  | 2018 |  |  | 2017 |
Numerator |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Net income (loss) |  | $ | (7,670 | ) |  | $ | 12,401 |  |  | $ | (18,484 | ) |  | $ | 19,052 |
Denominator |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Weighted average number of shares – basic |  |  | 47,856 |  |  |  | 48,036 |  |  |  | 48,043 |  |  |  | 48,232 |
Effect of dilutive securities |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Stock options |  |  | — |  |  |  | 279 |  |  |  | 8 |  |  |  | 348 |
PSUs, RSUs and restricted stock |  |  | 46 |  |  |  | 98 |  |  |  | 40 |  |  |  | 95 |
Weighted average number of shares – diluted |  |  | 47,902 |  |  |  | 48,413 |  |  |  | 48,091 |  |  |  | 48,675 |
Net income (loss) per share – basic |  | $ | (0.16 | ) |  | $ | 0.26 |  |  | $ | (0.38 | ) |  | $ | 0.40 |
Net income (loss) per share – diluted |  | $ | (0.16 | ) |  | $ | 0.26 |  |  | $ | (0.38 | ) |  | $ | 0.39 |
Anti-dilutive options to purchase common stock outstanding were excluded from the above calculations. Anti-dilutive options totaled 5.0 million and 4.1 million for the three months ended June 30, 2018 and 2017, respectively, and 4.8 million and 4.1 million for the six months ended June 30, 2018 and 2017.

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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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