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Pension And Other Postretirement Benefits (Tables) | 3 Months Ended
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Apr. 01, 2012
Pension And Other Postretirement Benefits [Abstract] |
Schedule Of Net Benefit Cost Of Pension And Postretirement Benefit Plans |
|  | Pension Three Months Ended |  |  | Other Postretirement Benefits Three Months Ended |
|  | April 1, 2012 |  |  | March 27, 2011 |  |  | April 1, 2012 |  |  | March 27, 2011 |
|  | (Dollars in thousands) |
Service cost |  | $ | 678 |  |  | $ | 579 |  |  | $ | 158 |  |  | $ | 198 |
Interest cost |  |  | 4,126 |  |  |  | 4,244 |  |  |  | 473 |  |  |  | 550 |
Expected return on plan assets |  |  | (5,043 | ) |  |  | (4,901 | ) |  |  | — |  |  |  | — |
Net amortization and deferral |  |  | 1,606 |  |  |  | 1,056 |  |  |  | 123 |  |  |  | 70 |
Net benefit cost |  | $ | 1,367 |  |  | $ | 978 |  |  | $ | 754 |  |  | $ | 818 |

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- Definition Tabular disclosure of the components of net benefit costs for pension plans and/or other employee benefit plans including service cost, interest cost, expected return on plan assets, gain (loss), prior service cost or credit, transition asset or obligation, and gain (loss) recognized due to settlements or curtailments. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Topic 715 -SubTopic 20 -Publisher FASB -Number -Article -Subparagraph (h) -Name Accounting Standards Codification -Paragraph 1 -Section 50 -URI http://asc.fasb.org/extlink&oid=6962843&loc=d3e1928-114920 + Details
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