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Employee Benefit Plans (Tables) | 9 Months Ended
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Oct. 01, 2011
Compensation and Retirement Disclosure [Abstract] |
Schedule of Net Benefit Costs [Text Block] | The components of the net periodic benefit costs for these plans are as follows:
|  | Quarter Ended |  | Nine Months Ended
|  | October 1, 2011 |  | October 2, 2010 |  | October 1, 2011 |  | October 2, 2010
Components of net periodic benefit costs: |  |  |  |  |  |  |  |
Service cost |  | $ | 381 |  |  | $ | 411 |  |  | $ | 1,143 |  |  | $ | 1,233 |
Interest cost |  | 2,274 |  |  | 2,248 |  |  | 6,822 |  |  | 6,744 |
Expected return on plan assets |  | (1,656 | ) |  | (1,498 | ) |  | (4,968 | ) |  | (4,494 | )
Amortization of unrecognized net loss |  | 858 |  |  | 967 |  |  | 2,574 |  |  | 2,901 |
Amortization of prior service cost |  | 11 |  |  | 20 |  |  | 33 |  |  | 60 |
Amortization of transition obligation |  | — |  |  | 7 |  |  | — |  |  | 21 |
Net periodic benefit costs |  | $ | 1,868 |  |  | $ | 2,155 |  |  | $ | 5,604 |  |  | $ | 6,465 |

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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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