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Per Share Data and Stockholders' Equity (Tables) | 9 Months Ended
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Sep. 30, 2014
Earnings Per Share [Abstract] |
Dilutive Effect on Earnings Per Share | The following table illustrates the dilutive effect of such items on earnings per share for the third quarter and nine-month periods ended September 30, 2014 and 2013:
|  |  | Third Quarter Ended September 30, 2014 |  |
|  |  |  |  |  |  | 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 |  |  | 52,070 |  |  | $ | 24,557 |  |  |  |  |  |  | $ | 155 |  |  |  |  |  |  | $ | 24,712 |  |  |  |  |  |
| Effect of participating securities: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
| Non-vested restricted stock |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
| and restricted stock units |  |  |  |  |  |  | (79 | ) |  |  |  |  |  |  | - |  |  |  |  |  |  |  | (79 | ) |  |  |  |  |
| Basic earnings (loss) and shares |  |  | 52,070 |  |  | $ | 24,478 |  |  | $ | 0.47 |  |  | $ | 155 |  |  | $ | - |  |  | $ | 24,633 |  |  | $ | 0.47 |  |
| Effect of dilutive securities: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
| Stock compensation plans |  |  | 483 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
| Diluted earnings (loss) and shares |  |  | 52,553 |  |  | $ | 24,478 |  |  | $ | 0.47 |  |  | $ | 155 |  |  | $ | - |  |  | $ | 24,633 |  |  | $ | 0.47 |  |
|  |  | Third Quarter Ended September 30, 2013 |  |
|  |  |  |  |  |  | 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 |  |  | 52,553 |  |  | $ | 24,702 |  |  |  |  |  |  | $ | (1,375 | ) |  |  |  |  |  | $ | 23,327 |  |  |  |  |  |
| Effect of participating securities: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
| Non-vested restricted stock |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
| and restricted stock units |  |  |  |  |  |  | (172 | ) |  |  |  |  |  |  | - |  |  |  |  |  |  |  | (172 | ) |  |  |  |  |
| Basic earnings (loss) and shares |  |  | 52,553 |  |  | $ | 24,530 |  |  | $ | 0.47 |  |  | $ | (1,375 | ) |  | $ | (0.03 | ) |  | $ | 23,155 |  |  | $ | 0.44 |  |
| Effect of dilutive securities: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
| Stock compensation plans |  |  | 365 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
| Diluted earnings (loss) and shares |  |  | 52,918 |  |  | $ | 24,530 |  |  | $ | 0.46 |  |  | $ | (1,375 | ) |  | $ | (0.02 | ) |  | $ | 23,155 |  |  | $ | 0.44 |  |
|  |  | Nine Months Ended September 30, 2014 |  |
|  |  |  |  |  |  | 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 |  |  | 52,333 |  |  | $ | 71,602 |  |  |  |  |  |  | $ | (511 | ) |  |  |  |  |  | $ | 71,091 |  |  |  |  |  |
| Effect of participating securities: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
| Non-vested restricted stock |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
| and restricted stock units |  |  |  |  |  |  | (229 | ) |  |  |  |  |  |  | - |  |  |  |  |  |  |  | (229 | ) |  |  |  |  |
| Basic earnings (loss) and shares |  |  | 52,333 |  |  | $ | 71,373 |  |  | $ | 1.36 |  |  | $ | (511 | ) |  | $ | (0.01 | ) |  | $ | 70,862 |  |  | $ | 1.35 |  |
| Effect of dilutive securities: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
| Stock compensation plans |  |  | 475 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
| Diluted earnings (loss) and shares |  |  | 52,808 |  |  | $ | 71,373 |  |  | $ | 1.35 |  |  | $ | (511 | ) |  | $ | (0.01 | ) |  | $ | 70,862 |  |  | $ | 1.34 |  |
|  |  | Nine Months Ended September 30, 2013 |  |
|  |  |  |  |  |  | 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 |  |  | 52,578 |  |  | $ | 55,117 |  |  |  |  |  |  | $ | (1,582 | ) |  |  |  |  |  | $ | 53,535 |  |  |  |  |  |
| Effect of participating securities: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
| Non-vested restricted stock |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
| and restricted stock units |  |  |  |  |  |  | (393 | ) |  |  |  |  |  |  | - |  |  |  |  |  |  |  | (393 | ) |  |  |  |  |
| Basic earnings (loss) and shares |  |  | 52,578 |  |  | $ | 54,724 |  |  | $ | 1.04 |  |  | $ | (1,582 | ) |  | $ | (0.03 | ) |  | $ | 53,142 |  |  | $ | 1.01 |  |
| Effect of dilutive securities: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
| Stock compensation plans |  |  | 352 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
| Diluted earnings (loss) and shares |  |  | 52,930 |  |  | $ | 54,724 |  |  | $ | 1.03 |  |  | $ | (1,582 | ) |  | $ | (0.03 | ) |  | $ | 53,142 |  |  | $ | 1.00 |  |

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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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