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Defined Benefit Plans (Tables) | 9 Months Ended
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Sep. 25, 2013
Compensation and Retirement Disclosure [Abstract] |
Components of net periodic benefit cost | The components of net periodic benefit cost were as follows:
| Quarter Ended |  | Three Quarters Ended
| September 25, 2013 |  | September 26, 2012 |  | September 25, 2013 |  | September 26, 2012
| (In thousands)
Pension plan: |  |  |  |  |  |  |
Service cost | $ | 100 |  |  | $ | 95 |  |  | $ | 300 |  |  | $ | 285 |
Interest cost | 745 |  |  | 800 |  |  | 2,233 |  |  | 2,400 |
Expected return on plan assets | (1,122 | ) |  | (1,024 | ) |  | (3,366 | ) |  | (3,042 | )
Amortization of net loss | 413 |  |  | 441 |  |  | 1,240 |  |  | 1,322 |
Net periodic benefit cost | $ | 136 |  |  | $ | 312 |  |  | $ | 407 |  |  | $ | 965 |
Other defined benefit plans: |  |  |  |  |  |  |
Interest cost | $ | 28 |  |  | $ | 29 |  |  | $ | 84 |  |  | $ | 87 |
Amortization of net loss | 17 |  |  | 13 |  |  | 53 |  |  | 39 |
Net periodic benefit cost | $ | 45 |  |  | $ | 42 |  |  | $ | 137 |  |  | $ | 126 |

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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=28361610&loc=d3e1928-114920 + Details
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