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Accumulated Other Comprehensive Loss - Reclassifications out of accumulated other comprehensive loss (Details 1) (USD $)
In Thousands, unless otherwise specified
 3 Months Ended
Mar. 30, 2013
Amortization of defined benefit pension items:  
Actuarial loss $ 718
Tax impact    [1]
Total, net of tax $ 718 [2]
[1] There was no tax effect for this accumulated other comprehensive loss component items due to the fact that there was no intraperiod income tax allocation and the deferred tax benefit was fully offset by a valuation allowance.
[2] These accumulated other comprehensive loss components are included in the computation of net periodic pension cost.