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Contingencies
6 Months Ended
Jun. 25, 2011
Contingencies [Abstract]  
Contingencies
8.   Contingencies
    From time-to-time we are involved in various legal proceedings, examinations by various tax authorities and claims that have arisen in the ordinary course of our businesses. Although the outcome of such legal proceedings, claims and examinations cannot be predicted with certainty, we do not believe any such matters exist at this time that will have a material adverse effect on our financial position or results of operations.