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Per Share Data and Stockholders' Equity (Tables) | 6 Months Ended
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Jun. 30, 2018
Earnings Per Share [Abstract] |
Dilutive Effect on Earnings Per Share | The following tables illustrate the dilutive effect of such items on earnings per share for the three and six months ended June 30, 2018 and 2017:
| Three Months Ended June 30, 2018
|  |  | Income (Loss) |  | Income (Loss) |  |  |  |
|  |  | From Continuing Operations |  | From Discontinued Operations |  | Net Income (Loss)
| Weighted Average Shares |  | Amount |  | Per Share Amount |  | Amount |  | Per Share Amount |  | Amount |  | Per Share Amount
| (In thousands, except per share amounts)
Earnings (loss) and shares | 42,662 |  |  | $ | 17,122 |  |  |  |  | $ | (217 | ) |  |  |  | $ | 16,905 |  |  |
Effect of participating securities: |  |  |  |  |  |  |  |  |  |  |  |  |
Non-vested restricted stock |  |  | (3 | ) |  |  |  | — |  |  |  |  | (3 | ) |  |
Basic earnings (loss) and shares | 42,662 |  |  | $ | 17,119 |  |  | $ | 0.40 |  |  | $ | (217 | ) |  | $ | — |  |  | $ | 16,902 |  |  | $ | 0.40 |
Effect of dilutive securities: |  |  |  |  |  |  |  |  |  |  |  |  |
Stock compensation plans | 258 |  |  |  |  |  |  |  |  |  |  |  |  |
Diluted earnings (loss) and shares | 42,920 |  |  | $ | 17,119 |  |  | $ | 0.40 |  |  | $ | (217 | ) |  | $ | (0.01 | ) |  | $ | 16,902 |  |  | $ | 0.39 |
| Three Months Ended June 30, 2017
|  |  | Income (Loss) |  | Income (Loss) |  |  |  |
|  |  | From Continuing Operations |  | From Discontinued Operations |  | Net Income (Loss)
| Weighted Average Shares |  | Amount |  | Per Share Amount |  | Amount |  | Per Share Amount |  | Amount |  | Per Share Amount
| (In thousands, except per share amounts)
Earnings (loss) and shares | 44,570 |  |  | $ | 12,314 |  |  |  |  | $ | (182 | ) |  |  |  | $ | 12,132 |  |  |
Effect of participating securities: |  |  |  |  |  |  |  |  |  |  |  |  |
Non-vested restricted stock |  |  | (9 | ) |  |  |  | — |  |  |  |  | (9 | ) |  |
Basic earnings (loss) and shares | 44,570 |  |  | $ | 12,305 |  |  | $ | 0.28 |  |  | $ | (182 | ) |  | $ | (0.01 | ) |  | $ | 12,123 |  |  | $ | 0.27 |
Effect of dilutive securities: |  |  |  |  |  |  |  |  |  |  |  |  |
Stock compensation plans | 240 |  |  |  |  |  |  |  |  |  |  |  |  |
Diluted earnings (loss) and shares | 44,810 |  |  | $ | 12,305 |  |  | $ | 0.27 |  |  | $ | (182 | ) |  | $ | — |  |  | $ | 12,123 |  |  | $ | 0.27 |
| Six Months Ended June 30, 2018
|  |  | Income (Loss) |  | Income (Loss) |  |  |  |
|  |  | From Continuing Operations |  | From Discontinued Operations |  | Net Income (Loss)
| Weighted Average Shares |  | Amount |  | Per Share Amount |  | Amount |  | Per Share Amount |  | Amount |  | Per Share Amount
| (In thousands, except per share amounts)
Earnings (loss) and shares | 42,725 |  |  | $ | 15,108 |  |  |  |  | $ | (397 | ) |  |  |  | $ | 14,711 |  |  |
Effect of participating securities: |  |  |  |  |  |  |  |  |  |  |  |  |
Non-vested restricted stock |  |  | (5 | ) |  |  |  | — |  |  |  |  | (5 | ) |  |
Basic earnings (loss) and shares | 42,725 |  |  | $ | 15,103 |  |  | $ | 0.35 |  |  | $ | (397 | ) |  | $ | (0.01 | ) |  | $ | 14,706 |  |  | $ | 0.34 |
Effect of dilutive securities: |  |  |  |  |  |  |  |  |  |  |  |  |
Stock compensation plans | 223 |  |  |  |  |  |  |  |  |  |  |  |  |
Diluted earnings (loss) and shares | 42,948 |  |  | $ | 15,103 |  |  | $ | 0.35 |  |  | $ | (397 | ) |  | $ | (0.01 | ) |  | $ | 14,706 |  |  | $ | 0.34 |
| Six Months Ended June 30, 2017
|  |  | Income (Loss) |  | Income (Loss) |  |  |  |
|  |  | From Continuing Operations |  | From Discontinued Operations |  | Net Income (Loss)
| Weighted Average Shares |  | Amount |  | Per Share Amount |  | Amount |  | Per Share Amount |  | Amount |  | Per Share Amount
| (In thousands, except per share amounts)
Earnings (loss) and shares | 44,680 |  |  | $ | 12,294 |  |  |  |  | $ | (703 | ) |  |  |  | $ | 11,591 |  |  |
Effect of participating securities: |  |  |  |  |  |  |  |  |  |  |  |  |
Non-vested restricted stock |  |  | (9 | ) |  |  |  | — |  |  |  |  | (9 | ) |  |
Basic earnings (loss) and shares | 44,680 |  |  | $ | 12,285 |  |  | $ | 0.27 |  |  | $ | (703 | ) |  | $ | (0.01 | ) |  | $ | 11,582 |  |  | $ | 0.26 |
Effect of dilutive securities: |  |  |  |  |  |  |  |  |  |  |  |  |
Stock compensation plans | 296 |  |  |  |  |  |  |  |  |  |  |  |  |
Diluted earnings (loss) and shares | 44,976 |  |  | $ | 12,285 |  |  | $ | 0.27 |  |  | $ | (703 | ) |  | $ | (0.01 | ) |  | $ | 11,582 |  |  | $ | 0.26 |

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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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