Quarterly report pursuant to Section 13 or 15(d)

Stock-Based Compensation (Summary of Stock-Based Compensation Activity) (Details)

v2.4.0.8
Stock-Based Compensation (Summary of Stock-Based Compensation Activity) (Details) (USD $)
In Thousands, except Share data, unless otherwise specified
9 Months Ended
Sep. 29, 2013
Shares  
Outstanding and expected to vest at December 30, 2012 1,052,861
Granted 145,907
Exercised (463,613)
Forfeited (2,702)
Outstanding and expected to vest at September 29, 2013 732,453
Exercisable at September 29, 2013 467,978
Weighted Average Exercise Price  
Outstanding and expected to vest at December 30, 2012 $ 5.28
Granted $ 28.97
Exercised $ 3.07
Forfeited $ 12.18
Outstanding and expected to vest at September 29, 2013 $ 11.37
Exercisable at September 29, 2013 $ 5.60
Weighted Average Remaining Contractual Term (Year)  
Outstanding and expected to vest at September 29, 2013 5 years 8 months 22 days
Exercisable at September 29, 2013 4 years 5 months 20 days
Aggregate Intrinsic Value  
Outstanding and expected to vest at September 29, 2013 $ 16,757
Exercisable at September 29, 2013 $ 13,406