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Employee Benefit Plans (Defined Contribution Plans) (Details) (USD $)
In Thousands, unless otherwise specified
12 Months Ended
Dec. 28, 2013
Rate
Dec. 29, 2012
Dec. 31, 2011
Defined Contribution Plans [Line Items]      
Percentage of Employees Covered 18.00%    
Non-Collective-Bargaining Plan [Member]
     
Defined Contribution Plans [Line Items]      
Percentage of Employees Covered 82.00%    
Employer Matching Contribution, Percentage 1.00%    
Employer Matching Contribution, Discretionary Percentage 2.00%    
Maximum Annual Contribution Per Employee, Percentage 3.00%    
Cost Recognized $ 610 $ 247  
Collective-Bargaining Plan [Member]
     
Defined Contribution Plans [Line Items]      
Percentage of Employees Covered 18.00%    
Maximum Annual Contribution Per Employee, Percentage 2.75%    
Cost Recognized $ 86 $ 78 $ 87