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Pensions and Other Postretirement Benefits | 3 Months Ended
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Mar. 31, 2015
Compensation and Retirement Disclosure [Abstract] |
Pensions and Other Postretirement Benefits | Pensions and Other Postretirement Benefits Components of net periodic benefit cost consisted of the following:
|  | Pension Benefits |  | Other Benefits
(In thousands) |  | 2015 |  | 2014 |  | 2015 |  | 2014
Three Months Ended March 31, |  |  |  |  |  |  |  |
Service cost |  | $ | 2,904 |  |  | $ | 2,481 |  |  | $ | 111 |  |  | $ | 156 |
Interest cost |  | 4,593 |  |  | 4,891 |  |  | 216 |  |  | 299 |
Expected return on plan assets |  | (8,537 | ) |  | (8,251 | ) |  | — |  |  | — |
Amortization of prior service cost |  | 17 |  |  | 21 |  |  | (84 | ) |  | (84 | )
Recognized net actuarial losses |  | 3,929 |  |  | 2,203 |  |  | 7 |  |  | 83 |
Settlements |  | 33 |  |  | 57 |  |  | — |  |  | — |
Net periodic benefit cost |  | 2,939 |  |  | 1,402 |  |  | 250 |  |  | 454 |
We made contributions of $1.0 million to our pension plans during the three months ended March 31, 2015. We expect to make total contributions of approximately $4.1 million to our pension plans in 2015.

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