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EARNINGS PER COMMON SHARE | 6 Months Ended
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Jun. 30, 2018
EARNINGS PER COMMON SHARE |
EARNINGS PER COMMON SHARE | 11. EARNINGS PER COMMON SHARE The following represents the calculation of earnings (loss) per share (in thousands, except per share amounts):
|  | Three Months Ended June 30, |  | Six Months Ended June 30, |
|  | 2018 |  | 2017 |  | 2018 |  | 2017 |
Basic: |  |  |  |  |  |  |  |  |  |  |  |  |
Net income (loss) available to common stockholders |  | $ | (16,274 | ) | $ | (27,029 | ) | $ | (18,872 | ) | $ | 161,522 |
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Weighted average basic number of common shares outstanding |  |  | 157,943 |  |  | 143,545 |  |  | 155,925 |  |  | 117,554 |
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Basic net income (loss) per share of common stock |  | $ | (0.10 | ) | $ | (0.19 | ) | $ | (0.12 | ) | $ | 1.37 |
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Diluted: |  |  |  |  |  |  |  |  |  |  |  |  |
Net income (loss) available to common stockholders |  | $ | (16,274 | ) | $ | (27,029 | ) | $ | (18,872 | ) | $ | 161,522 |
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Weighted average basic number of common shares outstanding |  |  | 157,943 |  |  | 143,545 |  |  | 155,925 |  |  | 117,554 |
Common stock equivalent shares representing shares issuable upon: |  |  |  |  |  |  |  |  |  |  |  |  |
Exercise of stock options |  |  | Anti-dilutive |  |  | Anti-dilutive |  |  | Anti-dilutive |  |  | Anti-dilutive |
Exercise of warrants |  |  | Anti-dilutive |  |  | Anti-dilutive |  |  | Anti-dilutive |  |  | Anti-dilutive |
Vesting of restricted shares |  |  | Anti-dilutive |  |  | Anti-dilutive |  |  | Anti-dilutive |  |  | 655 |
Conversion of preferred stock |  |  | — |  |  | Anti-dilutive |  |  | — |  |  | Anti-dilutive |
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Weighted average diluted number of common shares outstanding |  |  | 157,943 |  |  | 143,545 |  |  | 155,925 |  |  | 118,209 |
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Diluted net income (loss) per share of common stock |  | $ | (0.10 | ) | $ | (0.19 | ) | $ | (0.12 | ) | $ | 1.37 |
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Common stock equivalents, including stock options, restricted shares, and warrants totaling 14.9 million and 14.0 million shares for the three and six months ended June 30, 2018, respectively, were not included in the computation of diluted earnings per share of common stock because the effect would have been anti-dilutive due to the net losses. Common stock equivalents, including stock options, restricted shares, warrants, and preferred stock totaling 18.1 million and 14.8 million shares for the three and six months ended June 30, 2017, respectively, were not included in the computation of diluted earnings per share of common stock because the effect would have been anti-dilutive.

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- Definition The entire disclosure for earnings per share. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -URI http://asc.fasb.org/topic&trid=2144383 + Details
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