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Share-based Compensation Expense - Summary of Assumptions used to Estimate the Weighted-Average Fair Value Per Share for Stock Purchase under the Employee Stock Purchase Plan (Details) - Employee Stock [Member]
9 Months Ended
Sep. 27, 2015
$ / shares
Assumptions used to estimate the fair value per share of employee stock purchase rights granted  
Risk-free interest rate, minimum 0.07%
Risk-free interest rate, maximum 0.33%
Expected volatility, minimum 29.00%
Expected volatility, maximum 38.00%
Expected dividends 0.00%
Weighted-average fair value per share (in dollars per share) $ 53.92
Minimum [Member]  
Assumptions used to estimate the fair value per share of employee stock purchase rights granted  
Expected term 6 months
Maximum [Member]  
Assumptions used to estimate the fair value per share of employee stock purchase rights granted  
Expected term 1 year