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Net Income (Loss) Per Share (Tables) | 12 Months Ended
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Dec. 31, 2017
Earnings Per Share [Abstract] |
Summary of Net Income (Loss) Per Share | The following summarizes the computation of basic and diluted net income (loss) per share.
|  | Year Ended December 31, |
|  | 2017 |  |  | 2016 |  |  | 2015 |
Income (loss) from continuing operations |  | $ | 25,364 |  |  | $ | (9,490 | ) |  | $ | (24,375 | )
Income from discontinued operations, net of tax |  |  | 137,688 |  |  |  | 16,153 |  |  |  | 17,889 |
Net income (loss) |  | $ | 163,052 |  |  | $ | 6,663 |  |  | $ | (6,486 | )
Weighted average shares outstanding |  |  | 27,433 |  |  |  | 27,016 |  |  |  | 21,181 |
Effect of dilutive stock options |  |  | 322 |  |  |  | — |  |  |  | — |
Diluted shares outstanding |  |  | 27,755 |  |  |  | 27,016 |  |  |  | 21,181 |
Basic income (loss) from continuing operations per share |  | $ | 0.92 |  |  | $ | (0.35 | ) |  | $ | (1.15 | )
Basic income from discontinued operations per share |  |  | 5.02 |  |  |  | 0.60 |  |  |  | 0.84 |
Basic net income (loss) per share |  | $ | 5.94 |  |  | $ | 0.25 |  |  | $ | (0.31 | )
Diluted income (loss) from continuing operations per share |  | $ | 0.91 |  |  | $ | (0.35 | ) |  | $ | (1.15 | )
Diluted income from discontinued operations per share |  |  | 4.96 |  |  |  | 0.60 |  |  |  | 0.84 |
Diluted net income (loss) per share |  | $ | 5.87 |  |  | $ | 0.25 |  |  | $ | (0.31 | )

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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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