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Net Income (Loss) Per Share (Tables) | 12 Months Ended
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Dec. 31, 2018
Earnings Per Share [Abstract] |
Schedule of Earnings Per Share, Basic and Diluted |
| Year ended December 31,
In thousands except per share amounts | 2018 |  | 2017 |  | 2016
Net income (loss) available to common stockholders: |  |  |  |  |
Income (loss) from continuing operations | $ | (48,955 | ) |  | $ | 10,925 |  |  | $ | 22,435 |
Income (loss) from discontinued operations | 550 |  |  | (12,244 | ) |  | 32,917 |
| $ | (48,405 | ) |  | $ | (1,319 | ) |  | $ | 55,352 |
Weighted average shares: |  |  |  |  |
Basic | 188,606 |  |  | 180,096 |  |  | 159,853 |
Effect of stock-based compensation plans | — |  |  | 4,048 |  |  | 3,606 |
Diluted | 188,606 |  |  | 184,144 |  |  | 163,459 |
Basic income (loss) per share: |  |  |  |  |
Income (loss) from continuing operations | $ | (0.26 | ) |  | $ | 0.06 |  |  | $ | 0.14 |
Income (loss) from discontinued operations | — |  |  | (0.07 | ) |  | 0.21 |
Basic(1) | $ | (0.26 | ) |  | $ | (0.01 | ) |  | $ | 0.35 |
Diluted income (loss) per share: |  |  |  |  |
Income (loss) from continuing operations | $ | (0.26 | ) |  | $ | 0.06 |  |  | $ | 0.14 |
Income (loss) from discontinued operations | — |  |  | (0.07 | ) |  | 0.20 |
Diluted(1) | $ | (0.26 | ) |  | $ | (0.01 | ) |  | $ | 0.34 |

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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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