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Pension And Other Post-Retirement Benefits (Tables) | 9 Months Ended
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Sep. 30, 2015
Compensation and Retirement Disclosure [Abstract] |
Schedule Of Components Of Net Periodic Benefit Cost For Pension And Other Post-Retirement Benefit Programs | The components of net periodic benefit cost for our pension and other post-retirement benefit programs reflected in consolidated results are shown below:
| Pension Benefits |  | Other Post-Retirement Benefits
| Three Months Ended September 30, |  | Three Months Ended September 30,
(In Thousands) | 2015 |  | 2014 |  | 2015 |  | 2014
Service cost | $ | 110 |  |  | $ | 109 |  |  | $ | 9 |  |  | $ | 13 |
Interest cost | 3,288 |  |  | 3,365 |  |  | 77 |  |  | 93 |
Expected return on plan assets | (4,413 | ) |  | (4,610 | ) |  | — |  |  | — |
Amortization of prior service costs, gains or losses and net transition asset | 4,094 |  |  | 2,388 |  |  | (65 | ) |  | (76 | )
Net periodic benefit cost | $ | 3,079 |  |  | $ | 1,252 |  |  | $ | 21 |  |  | $ | 30 |
| Pension Benefits |  | Other Post-Retirement Benefits
| Nine Months Ended September 30, |  | Nine Months Ended September 30,
| 2015 |  | 2014 |  | 2015 |  | 2014
Service cost | $ | 398 |  |  | $ | 758 |  |  | $ | 33 |  |  | $ | 39 |
Interest cost | 9,913 |  |  | 10,048 |  |  | 244 |  |  | 279 |
Expected return on plan assets | (13,227 | ) |  | (13,726 | ) |  | — |  |  | — |
Amortization of prior service costs, (gains) losses and net transition asset | 12,142 |  |  | 8,016 |  |  | (145 | ) |  | (230 | )
Curtailment charge | — |  |  | 81 |  |  | — |  |  | — |
Net periodic benefit cost | $ | 9,226 |  |  | $ | 5,177 |  |  | $ | 132 |  |  | $ | 88 |

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