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Per Share Data and Stockholders' Equity (Tables) | 3 Months Ended
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Mar. 31, 2015
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 three months ended March 31, 2015 and 2014:
|  |  | Three Months Ended March 31, 2015 |
|  |  |  |  | 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 |  | 50,854 |  | $ 14,389 |  |  |  | $ (422) |  |  |  | $ 13,967 |  |  |
| Effect of participating securities: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
| Non-vested restricted stock |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
| and restricted stock units |  |  |  | (5) |  |  |  | - |  |  |  | (5) |  |  |
| Basic earnings (loss) and shares |  | 50,854 |  | $ 14,384 |  | $ 0.28 |  | $ (422) |  | $ (0.01) |  | $ 13,962 |  | $ 0.27 |
| Effect of dilutive securities: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
| Stock compensation plans |  | 549 |  |  |  |  |  |  |  |  |  |  |  |  |
| Diluted earnings (loss) and shares |  | 51,403 |  | $ 14,384 |  | $ 0.28 |  | $ (422) |  | $ (0.01) |  | $ 13,962 |  | $ 0.27 |
|  |  | Three Months Ended March 31, 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 |  | 52,418 |  | $ 19,984 |  |  |  | $ (598) |  |  |  | $ 19,386 |  |  |
| Effect of participating securities: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
| Non-vested restricted stock |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
| and restricted stock units |  |  |  | (63) |  |  |  | - |  |  |  | (63) |  |  |
| Basic earnings (loss) and shares |  | 52,418 |  | $ 19,921 |  | $ 0.38 |  | $ (598) |  | $ (0.01) |  | $ 19,323 |  | $ 0.37 |
| Effect of dilutive securities: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
| Stock compensation plans |  | 528 |  |  |  |  |  |  |  |  |  |  |  |  |
| Diluted earnings (loss) and shares |  | 52,946 |  | $ 19,921 |  | $ 0.38 |  | $ (598) |  | $ (0.02) |  | $ 19,323 |  | $ 0.36 |

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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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