Quarterly report pursuant to Section 13 or 15(d)

Schedule of Assumption Used and Resulting Weighted Average Fair Value of Stock Option Granted (Detail)

v2.4.0.8
Schedule of Assumption Used and Resulting Weighted Average Fair Value of Stock Option Granted (Detail) (USD $)
9 Months Ended
Sep. 27, 2014
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]  
Expected volatility, minimum 23.00%
Expected volatility, maximum 29.00%
Weighted average expected volatility 26.00%
Dividend yield 2.10%
Risk-free interest rate, minimum 0.10%
Risk-free interest rate, maximum 2.70%
Weighted average fair value at date of grant $ 12.01
Minimum
 
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]  
Expected term 5 years 6 months
Maximum
 
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]  
Expected term 7 years 3 months 18 days