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Employee Benefit Plans (Tables) | 3 Months Ended
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Mar. 30, 2013
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
|  | March 30, 2013 |  | March 31, 2012
Components of net periodic benefit costs: |  |  |  |
Service cost |  | $ | 532 |  |  | $ | 516 |
Interest cost |  | 2,026 |  |  | 2,201 |
Expected return on plan assets |  | (1,629 | ) |  | (1,509 | )
Amortization of unrecognized net loss |  | 1,157 |  |  | 951 |
Amortization of prior service cost |  | 11 |  |  | 11 |
Net periodic benefit costs |  | $ | 2,097 |  |  | $ | 2,170 |

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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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