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Pension and Other Postretirement Obligations | 6 Months Ended
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Jun. 30, 2013
Pension and Other Postretirement Obligations | Note 11: Pension and Other Postretirement Obligations The following table provides the components of net periodic benefit costs for our pension and other postretirement benefit plans:
|  | Pension Obligations |  |  | Other Postretirement Obligations |
|  | June 30, 2013 |  |  | July 1, 2012 |  |  | June 30, 2013 |  |  | July 1, 2012 |
|  | (In thousands) |
Three Months Ended |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Service cost |  | $ | 1,676 |  |  | $ | 1,432 |  |  | $ | 35 |  |  | $ | 30 |
Interest cost |  |  | 2,914 |  |  |  | 3,037 |  |  |  | 557 |  |  |  | 545 |
Expected return on plan assets |  |  | (3,391 | ) |  |  | (3,169 | ) |  |  | — |  |  |  | — |
Amortization of prior service credit |  |  | (8 | ) |  |  | (19 | ) |  |  | (28 | ) |  |  | (29 | )
Actuarial losses |  |  | 1,665 |  |  |  | 1,490 |  |  |  | 320 |  |  |  | 223 |
Net periodic benefit cost |  | $ | 2,856 |  |  | $ | 2,771 |  |  | $ | 884 |  |  | $ | 769 |
Six Months Ended |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Service cost |  | $ | 3,364 |  |  | $ | 2,864 |  |  | $ | 68 |  |  | $ | 62 |
Interest cost |  |  | 5,862 |  |  |  | 6,047 |  |  |  | 1,083 |  |  |  | 1,133 |
Expected return on plan assets |  |  | (6,797 | ) |  |  | (6,333 | ) |  |  | — |  |  |  | — |
Amortization of prior service credit |  |  | (16 | ) |  |  | (39 | ) |  |  | (55 | ) |  |  | (58 | )
Actuarial losses |  |  | 3,333 |  |  |  | 2,982 |  |  |  | 598 |  |  |  | 485 |
Net periodic benefit cost |  | $ | 5,746 |  |  | $ | 5,521 |  |  | $ | 1,694 |  |  | $ | 1,622 |

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- Definition The entire disclosure for pension and other postretirement benefits. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -URI http://asc.fasb.org/topic&trid=2235017 + Details
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Namespace Prefix: | us-gaap_
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