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Pension And Other Post-Retirement Benefits (Tables) | 9 Months Ended
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Sep. 30, 2016
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 the 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) | 2016 |  | 2015 |  | 2016 |  | 2015
Service cost | $ | 54 |  |  | $ | 110 |  |  | $ | 8 |  |  | $ | 9 |
Interest cost | 3,263 |  |  | 3,288 |  |  | 67 |  |  | 77 |
Expected return on plan assets | (4,070 | ) |  | (4,413 | ) |  | — |  |  | — |
Amortization of prior service costs, gains or losses and net transition asset | 3,135 |  |  | 4,094 |  |  | (49 | ) |  | (65 | )
Net periodic benefit cost | $ | 2,382 |  |  | $ | 3,079 |  |  | $ | 26 |  |  | $ | 21 |
| Pension Benefits |  | Other Post-Retirement Benefits
| Nine Months Ended September 30, |  | Nine Months Ended September 30,
| 2016 |  | 2015 |  | 2016 |  | 2015
Service cost | $ | 178 |  |  | $ | 398 |  |  | $ | 29 |  |  | $ | 33 |
Interest cost | 9,993 |  |  | 9,913 |  |  | 236 |  |  | 244 |
Expected return on plan assets | (12,027 | ) |  | (13,227 | ) |  | — |  |  | — |
Amortization of prior service costs, (gains) losses and net transition asset | 9,903 |  |  | 12,142 |  |  | (144 | ) |  | (145 | )
Net periodic benefit cost | $ | 8,047 |  |  | $ | 9,226 |  |  | $ | 121 |  |  | $ | 132 |

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