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Per Share Data and Stockholders' Equity (Tables) | 6 Months Ended
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Jun. 30, 2017
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, 2017 and 2016:
|  | Three Months Ended June 30, 2017 |
|  |  |  |  |  | Income (Loss) |  |  | Income (Loss) |  |  |  |  |  |  |  |  |
|  |  |  |  |  | From Continuing |  |  | From Discontinued |  |  | Net |
|  |  |  |  |  | Operations |  |  | Operations |  |  | Income (Loss) |
|  | Weighted |  |  |  |  |  |  | Per |  |  |  |  |  |  | Per |  |  |  |  |  |  | Per |
|  | Average |  |  |  |  |  |  | Share |  |  |  |  |  |  | Share |  |  |  |  |  |  | Share |
|  | Shares |  |  | Amount |  |  | Amount |  |  | Amount |  |  | Amount |  |  | Amount |  |  | 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 |
|  | Three Months Ended June 30, 2016 |
|  |  |  |  |  | Income (Loss) |  |  | Income (Loss) |  |  |  |  |  |  |  |  |
|  |  |  |  |  | From Continuing |  |  | From Discontinued |  |  | Net |
|  |  |  |  |  | Operations |  |  | Operations |  |  | Income (Loss) |
|  | Weighted |  |  |  |  |  |  | Per |  |  |  |  |  |  | Per |  |  |  |  |  |  | Per |
|  | Average |  |  |  |  |  |  | Share |  |  |  |  |  |  | Share |  |  |  |  |  |  | Share |
|  | Shares |  |  | Amount |  |  | Amount |  |  | Amount |  |  | Amount |  |  | Amount |  |  | Amount |
|  | (In thousands, except per share amounts) |
Earnings (loss) and shares |  |  | 45,731 |  |  | $ | 23,043 |  |  |  |  |  |  | $ | (221 | ) |  |  |  |  |  | $ | 22,822 |  |  |  |  |
Effect of participating securities: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Non-vested restricted stock |  |  |  |  |  |  | (13 | ) |  |  |  |  |  |  | - |  |  |  |  |  |  |  | (13 | ) |  |  |  |
Basic earnings (loss) and shares |  |  | 45,731 |  |  | $ | 23,030 |  |  | $ | 0.50 |  |  | $ | (221 | ) |  | $ | - |  |  | $ | 22,809 |  |  | $ | 0.50 |
Effect of dilutive securities: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Stock compensation plans |  |  | 193 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Diluted earnings (loss) and shares |  |  | 45,924 |  |  | $ | 23,030 |  |  | $ | 0.50 |  |  | $ | (221 | ) |  | $ | - |  |  | $ | 22,809 |  |  | $ | 0.50 |
|  | Six Months Ended June 30, 2017 |
|  |  |  |  |  | Income (Loss) |  |  | Income (Loss) |  |  |  |  |  |  |  |  |
|  |  |  |  |  | From Continuing |  |  | From Discontinued |  |  | Net |
|  |  |  |  |  | Operations |  |  | Operations |  |  | Income (Loss) |
|  | Weighted |  |  |  |  |  |  | Per |  |  |  |  |  |  | Per |  |  |  |  |  |  | Per |
|  | Average |  |  |  |  |  |  | Share |  |  |  |  |  |  | Share |  |  |  |  |  |  | Share |
|  | Shares |  |  | Amount |  |  | Amount |  |  | Amount |  |  | Amount |  |  | Amount |  |  | 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 |
|  | Six Months Ended June 30, 2016 |
|  |  |  |  |  | Income (Loss) |  |  | Income (Loss) |  |  |  |  |  |  |  |  |
|  |  |  |  |  | From Continuing |  |  | From Discontinued |  |  | Net |
|  |  |  |  |  | Operations |  |  | Operations |  |  | Income (Loss) |
|  | Weighted |  |  |  |  |  |  | Per |  |  |  |  |  |  | Per |  |  |  |  |  |  | Per |
|  | Average |  |  |  |  |  |  | Share |  |  |  |  |  |  | Share |  |  |  |  |  |  | Share |
|  | Shares |  |  | Amount |  |  | Amount |  |  | Amount |  |  | Amount |  |  | Amount |  |  | Amount |
|  | (In thousands, except per share amounts) |
Earnings (loss) and shares |  |  | 46,340 |  |  | $ | 37,507 |  |  |  |  |  |  | $ | (61 | ) |  |  |  |  |  | $ | 37,446 |  |  |  |  |
Effect of participating securities: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Non-vested restricted stock |  |  |  |  |  |  | (21 | ) |  |  |  |  |  |  | - |  |  |  |  |  |  |  | (21 | ) |  |  |  |
Basic earnings (loss) and shares |  |  | 46,340 |  |  | $ | 37,486 |  |  | $ | 0.81 |  |  | $ | (61 | ) |  | $ | - |  |  | $ | 37,425 |  |  | $ | 0.81 |
Effect of dilutive securities: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Stock compensation plans |  |  | 183 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Diluted earnings (loss) and shares |  |  | 46,523 |  |  | $ | 37,486 |  |  | $ | 0.81 |  |  | $ | (61 | ) |  | $ | (0.01 | ) |  | $ | 37,425 |  |  | $ | 0.80 |

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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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