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Stock-Based Compensation (Details) (USD $)
In Thousands, unless otherwise specified
3 Months Ended 9 Months Ended
Sep. 27, 2014
Sep. 28, 2013
Sep. 27, 2014
Sep. 28, 2013
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]        
Stock-based compensation expense $ 1,440 $ 1,236 $ 4,251 $ 3,794
Stock-based Compensation [Abstract]        
Unrecognized compensation expense related to stock awards $ 5,789   $ 5,789  
Recognition period 1 year 4 months 24 days