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Accumulated Other Comprehensive Loss - Summary of Impact of Accumulated Other Comprehensive Income (Loss) on Income Statement (Detail) (USD $) In Thousands, unless otherwise specified | 3 Months Ended
--- | ---
Mar. 30, 2014 | Mar. 31, 2013
Defined Benefit Plan Disclosure [Line Items] |  |
Reclassification to income, Pre-tax Activity | $ 616 | $ 1,164
Reclassification to income, Tax Effect | 238 | 457
Reclassification to income, Net of Tax | 378 | 707
Cost of Sales [Member] |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Reclassification to income, Pre-tax Activity | 102 | 115
S,D&A Expenses [Member] |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Reclassification to income, Pre-tax Activity | 514 | 1,049
Pension Plans [Member] |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Reclassification to income, Pre-tax Activity | 431 | 842
Reclassification to income, Tax Effect | 167 | 330
Reclassification to income, Net of Tax | 264 | 512
Pension Plans [Member] | Cost of Sales [Member] |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Reclassification to income, Pre-tax Activity | 78 | 76
Pension Plans [Member] | S,D&A Expenses [Member] |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Reclassification to income, Pre-tax Activity | 353 | 766
Postretirement Benefits [Member] |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Reclassification to income, Pre-tax Activity | 185 | 322
Reclassification to income, Tax Effect | 71 | 127
Reclassification to income, Net of Tax | 114 | 195
Postretirement Benefits [Member] | Cost of Sales [Member] |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Reclassification to income, Pre-tax Activity | 24 | 39
Postretirement Benefits [Member] | S,D&A Expenses [Member] |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Reclassification to income, Pre-tax Activity | $ 161 | $ 283

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- Definition Amount before tax of reclassification adjustment from accumulated other comprehensive (income) loss related to net period benefit cost (credit) for pension and other postretirement defined benefit plans. + References No definition available. + Details
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- Definition Amount after tax of reclassification adjustment from accumulated other comprehensive (income) loss related to net period benefit cost (credit) for pension and other postretirement defined benefit plans. + References No definition available. + Details
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- Definition Amount of tax (expense) benefit of reclassification adjustment from accumulated other comprehensive (income) loss related to pension and other postretirement defined benefit plans. + References No definition available. + Details
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