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(Loss) Earnings per Share (Tables) | 6 Months Ended
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Jun. 30, 2018
Earnings Per Share [Abstract] |
Calculation of Weighted Average Common Shares Outstanding Used in Computation of Diluted (Loss) Earnings Per Share | The following table summarizes the calculation of weighted average common shares outstanding used in the computation of diluted (loss) earnings per share:
| Net (Loss) Income |  | Weighted Average Shares |  | (Loss) Earnings Per Share
| (In thousands, except per share amounts) |  |  |  |
Three Months Ended June 30, 2018 |  |  |  |  |
Basic loss per share | $ | (34,074) |  | 35,017 |  | $ | (0.97)
Effect of dilutive securities |  |  |  |  |
Restricted stock awards(1) | — |  | — |  |
Performance share units(2) | — |  | — |  |
Warrants(3) | — |  | — |  |
Diluted loss per share | $ | (34,074) |  | 35,017 |  | $ | (0.97)
Three Months Ended June 30, 2017 |  |  |  |  |
Basic earnings per share | $ | 23,499 |  | 34,076 |  | $ | 0.69
Effect of dilutive securities |  |  |  |  |
Restricted stock awards | — |  | 55 |  |
Performance share units | — |  | 7 |  |
Warrants(3) | — |  | — |  |
Diluted earnings per share | $ | 23,499 |  | 34,138 |  | $ | 0.69
Six Months Ended June 30, 2018 |  |  |  |  |
Basic loss per share | $ | (74,968) |  | 34,800 |  | $ | (2.15)
Effect of dilutive securities |  |  |  |  |
Restricted stock awards(4) | — |  | — |  |
Performance share units(2) | — |  | — |  |
Warrants(3) | — |  | — |  |
Diluted loss per share | $ | (74,968) |  | 34,800 |  | $ | (2.15)
Six Months Ended June 30, 2017 |  |  |  |  |
Basic earnings per share | $ | 74,307 |  | 30,458 |  | $ | 2.44
Effect of dilutive securities |  |  |  |  |
Restricted stock awards | — |  | 192 |  |
Performance share units(5) | — |  | — |  |
Warrants(3) | — |  | — |  |
Diluted earnings per share | $ | 74,307 |  | 30,650 |  | $ | 2.42
____________________ 1. No incremental shares of potentially dilutive restricted stock awards were included for the three month period ended June 30, 2018, as their effect was antidilutive under the treasury stock method. 2. Performance share units covering an insignificant amount of shares for the three and six-month periods ended June 30, 2018, were excluded from the computation of loss per share because their effect would have been antidilutive. 3. No incremental shares of potentially dilutive warrants were included for the three and six-month periods ended June 30, 2018, or 2017, as their effect was antidilutive. 4. Restricted stock awards covering an insignificant amount of shares for the six-month period ended June 30, 2018, were excluded from the computation of loss per share because their effect would have been antidilutive. 5. No incremental shares of potentially dilutive performance share units were included for the six-month period ended June 30, 2017, as their effect was antidilutive under the treasury stock method.

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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://www.xbrl.org/2003/role/presentationRef -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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