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Stock Option And Stock Award Plans (Tables) | 12 Months Ended
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Dec. 31, 2015
Disclosure of Compensation Related Costs, Share-based Payments [Abstract] |
Summary Of Stock Options Outstanding | A summary of stock options outstanding at December 31, 2015, 2014 and 2013, and changes during those years, is presented below:
|  |  | Option Exercise Price/Share
| Number of Options |  | Range |  | Weighted Average
Outstanding at January 1, 2013 | 1,076,700 |  |  | $ | 14.06 |  |  | to |  | $ | 19.84 |  |  | $ | 17.81 |
Granted | 184,700 |  |  | 24.84 |  |  | to |  | 30.01 |  |  | 24.97 |
Forfeited and Expired | (34,000 | ) |  | 15.11 |  |  | to |  | 24.84 |  |  | 21.10 |
Exercised | (180,600 | ) |  | 14.27 |  |  | to |  | 19.84 |  |  | 17.32 |
Outstanding at December 31, 2013 | 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 |
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, 2015:
|  |  |  |  |  | Options Outstanding at December 31, 2015 |  | Options Exercisable at December 31, 2015
|  |  |  |  |  |  |  | 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 |  |  | 164,500 |  |  | 1.1 |  | 17.13 |  |  | — |  |  | 164,500 |  |  | 17.13 |  |  | — |
17.51 |  |  | to |  | 20.00 |  |  | 424,330 |  |  | 2.3 |  | 19.02 |  |  | — |  |  | 410,155 |  |  | 19.00 |  |  | — |
20.01 |  |  | to |  | 25.00 |  |  | 289,033 |  |  | 7.4 |  | 23.62 |  |  | — |  |  | 194,095 |  |  | 23.78 |  |  | — |
25.01 |  |  | to |  | 30.01 |  |  | 3,650 |  |  | 5.9 |  | 30.01 |  |  | — |  |  | 2,250 |  |  | 30.01 |  |  | — |
Total |  | 881,513 |  |  | 3.8 |  | $ | 20.22 |  |  | $ | — |  |  | 771,000 |  |  | $ | 19.84 |  |  | $ | — |
Summary Of Additional Information On Non-Vested Restricted Stock Outstanding | The following table summarizes additional information about unvested restricted stock outstanding at December 31, 2015, 2014 and 2013:
| 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, 2013 | 143,900 |  |  | $ | 18.82 |  |  | $ | 2,708 |  |  | 91,800 |  |  | $ | 18.85 |  |  | $ | 1,730 |
Granted | 93,425 |  |  | 25.45 |  |  | 2,378 |  |  | 77,200 |  |  | 27.82 |  |  | 2,148 |
Vested | (58,175 | ) |  | 20.15 |  |  | (1,172 | ) |  | — |  |  | — |  |  | — |
Forfeited | (21,300 | ) |  | 20.70 |  |  | (441 | ) |  | (36,700 | ) |  | 19.83 |  |  | (728 | )
Outstanding at December 31, 2013 | 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 |

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