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Stock Option And Stock Award Plans (Tables) | 12 Months Ended
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Dec. 31, 2016
Disclosure of Compensation Related Costs, Share-based Payments [Abstract] |
Summary Of Stock Options Outstanding | A summary of stock options outstanding at December 31, 2016, 2015 and 2014, and changes during those years, is presented below:
|  |  | Option Exercise Price/Share
| Number of Options |  | Range |  | Weighted Average
Outstanding at January 1, 2014 | 1,046,800 |  |  | $ | 14.06 |  |  | to |  | $ | 30.01 |  |  | $ | 19.06 |
Granted | 181,476 |  |  | 19.84 |  |  | to |  | 22.49 |  |  | 22.41 |
Forfeited and Expired | (22,581 | ) |  | 15.80 |  |  | to |  | 24.84 |  |  | 21.42 |
Exercised | (41,575 | ) |  | 15.80 |  |  | to |  | 19.84 |  |  | 17.55 |
Outstanding at December 31, 2014 | 1,164,120 |  |  | 14.06 |  |  | to |  | 30.01 |  |  | 19.59 |
Granted | — |  |  | — |  |  | to |  | — |  |  | — |
Forfeited and Expired | (60,207 | ) |  | 17.13 |  |  | to |  | 30.01 |  |  | 22.30 |
Exercised | (222,400 | ) |  | 14.06 |  |  | to |  | 19.84 |  |  | 16.34 |
Outstanding at December 31, 2015 | 881,513 |  |  | 17.13 |  |  | to |  | 30.01 |  |  | 20.22 |
Granted | — |  |  | — |  |  | to |  | — |  |  | — |
Forfeited and Expired | (246,394 | ) |  | 17.13 |  |  | to |  | 30.01 |  |  | 18.90 |
Exercised | (134,200 | ) |  | 17.13 |  |  | to |  | 19.84 |  |  | 17.23 |
Outstanding at December 31, 2016 | 500,919 |  |  | $ | 17.13 |  |  | to |  | $ | 30.01 |  |  | $ | 21.67 |
Summary Of Additional Information On Stock Options Outstanding And Exercisable | The following table summarizes additional information about stock options outstanding and exercisable at December 31, 2016:
|  |  |  |  |  | Options Outstanding at December 31, 2016 |  | Options Exercisable at December 31, 2016
|  |  |  |  |  |  |  | Weighted Average |  | Aggregate Intrinsic Value (In Thousands) |  |  |  |  |  | Aggregate Intrinsic Value (In Thousands)
Range of Exercise Prices |  | Shares |  | Remaining Contractual Life (Years) |  | Exercise Price |  |  | Shares |  | Weighted Average Exercise Price |
$ | — |  |  | to |  | $ | 15.00 |  |  | — |  |  | 0.0 |  | $ | — |  |  | $ | — |  |  | — |  |  | $ | — |  |  | $ | — |
15.01 |  |  | to |  | 17.50 |  |  | 13,000 |  |  | 0.1 |  | 17.13 |  |  | 89,310 |  |  | 13,000 |  |  | 17.13 |  |  | 89,310 |
17.51 |  |  | to |  | 20.00 |  |  | 226,425 |  |  | 2.8 |  | 19.59 |  |  | 999,156 |  |  | 226,425 |  |  | 19.59 |  |  | 999,156 |
20.01 |  |  | to |  | 25.00 |  |  | 258,694 |  |  | 6.5 |  | 23.63 |  |  | 201,274 |  |  | 211,542 |  |  | 23.74 |  |  | 149,553 |
25.01 |  |  | to |  | 30.01 |  |  | 2,800 |  |  | 6.6 |  | 30.01 |  |  | — |  |  | 2,100 |  |  | 30.01 |  |  | — |
Total |  | 500,919 |  |  | 4.6 |  | $ | 21.67 |  |  | $ | 1,289,740 |  |  | 453,067 |  |  | $ | 21.50 |  |  | $ | 1,238,019 |
Summary Of Additional Information On Non-Vested Restricted Stock Outstanding | The following table summarizes additional information about unvested restricted stock outstanding at December 31, 2016, 2015 and 2014:
| Unvested Restricted Stock |  | Maximum Unvested Restricted Stock Units Issuable Upon Satisfaction of Certain Performance Criteria
| Number of Shares |  | Weighted Avg. Grant Date Fair Value/Share |  | Grant Date Fair Value (In Thousands) |  | Number of Shares |  | Weighted Avg. Grant Date Fair Value/Share |  | Grant Date Fair Value (In Thousands)
Outstanding at January 1, 2014 | 157,850 |  |  | $ | 22.00 |  |  | $ | 3,473 |  |  | 132,300 |  |  | $ | 23.81 |  |  | $ | 3,150 |
Granted | 95,707 |  |  | 22.18 |  |  | 2,123 |  |  | 59,675 |  |  | 21.54 |  |  | 1,285 |
Vested | (54,921 | ) |  | 20.73 |  |  | (1,139 | ) |  | — |  |  | — |  |  | — |
Forfeited | (10,578 | ) |  | 21.76 |  |  | (230 | ) |  | (62,262 | ) |  | 19.18 |  |  | (1,194 | )
Outstanding at December 31, 2014 | 188,058 |  |  | 22.48 |  |  | 4,227 |  |  | 129,713 |  |  | 24.99 |  |  | 3,241 |
Granted | 147,666 |  |  | 18.87 |  |  | 2,786 |  |  | 144,582 |  |  | 18.47 |  |  | 2,670 |
Vested | (174,145 | ) |  | 20.57 |  |  | (3,582 | ) |  | — |  |  | — |  |  | — |
Forfeited | (29,226 | ) |  | 21.42 |  |  | (626 | ) |  | (107,167 | ) |  | 20.78 |  |  | (2,227 | )
Outstanding at December 31, 2015 | 132,353 |  |  | 21.19 |  |  | 2,805 |  |  | 167,128 |  |  | 22.04 |  |  | 3,684 |
Granted | 144,546 |  |  | 13.47 |  |  | 1,947 |  |  | 136,986 |  |  | 11.34 |  |  | 1,553 |
Vested | (52,167 | ) |  | 21.56 |  |  | (1,125 | ) |  | — |  |  | — |  |  | — |
Forfeited | (17,377 | ) |  | 18.97 |  |  | (330 | ) |  | (65,685 | ) |  | 20.24 |  |  | (1,329 | )
Outstanding at December 31, 2016 | 207,355 |  |  | $ | 15.90 |  |  | $ | 3,297 |  |  | 238,429 |  |  | $ | 16.39 |  |  | $ | 3,908 |

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