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Employee Benefits (Tables) | 3 Months Ended
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Mar. 30, 2013
Employee Benefits |
Schedule of net periodic benefits cost of plans |
|  | Three Months Ended
|  | March 30, |  | March 31,
(Thousands of dollars) |  | 2013 |  | 2012
Components of net periodic benefit cost: |  |  |  |
Service cost |  | $ 2,421 |  | $ 2,226
Interest cost |  | 2,068 |  | 2,258
Expected return on plan assets |  | (1,612) |  | (1,592)
Amortization and other |  | 1,636 |  | 1,530
Net periodic benefit cost |  | $ 4,513 |  | $ 4,422

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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 -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (h) -URI http://asc.fasb.org/extlink&oid=21915506&loc=d3e1928-114920 + Details
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