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Stockholders' Equity and Accumulated Other Comprehensive Loss (Tables) | 3 Months Ended
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Mar. 30, 2013
Stockholders' Equity and Accumulated Other Comprehensive Loss |
Schedule of components of changes in accumulated other comprehensive loss, net of tax |
|  | Cumulative |  |  |  |  |  |  |  |  |
|  | Foreign |  | Unrealized |  | Unrealized |  |  |  |  |
|  | Currency |  | Gain (Loss) |  | Loss on |  | Unrecognized |  |  |
|  | Translation |  | on |  | Cash Flow |  | Pension |  |  |
(Thousands of dollars) |  | Adjustment |  | Investments |  | Hedges |  | Cost |  | Total |
Balance December 31, 2012 |  | $ | (109,457 | ) | $ | 2,232 |  | $ | (113 | ) | $ | (64,206 | ) | $(171,544 | )
Other comprehensive income (loss) before reclassifications |  | (6,122 | ) | 639 |  | - |  | - |  | (5,483 | )
Amounts reclassified from accumulated other comprehensive loss |  | - |  | (210 | )(1) | - |  | 1,192 | (2) | 982 |
Net current-period other comprehensive income (loss) |  | (6,122 | ) | 429 |  | - |  | 1,192 |  | (4,501 | )
Balance March 30, 2013 |  | $ | (115,579 | ) | $ | 2,661 |  | $ | (113 | ) | $ | (63,014 | ) | $(176,045 | )
(1) This represents realized gains on the sale of available-for-sale securities and are recorded in other investment income, net. (2) This primarily represents the amortization of actuarial losses that are included in net periodic pension cost and are recorded in operating income. See Note 6 for further discussion.

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- Definition Tabular disclosure of the components of accumulated other comprehensive income (loss). + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 14A -URI http://asc.fasb.org/extlink&oid=20435746&loc=SL7669686-108580 + Details
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