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Stock-Based Compensation (Details) (USD $)
3 Months Ended 6 Months Ended
Jun. 29, 2013
Jun. 30, 2012
Jun. 29, 2013
Jun. 30, 2012
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]        
Stock-based compensation expense $ 1,289,000 $ 1,188,000 $ 2,558,000 $ 2,262,000
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Unrecognized compensation expense related to stock awards $ 6,566,000   $ 6,566,000  
Recognition period 1 year 9 months 18 days