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Stock Options Valuation Assumptions (Detail) (USD $)
12 Months Ended
Dec. 29, 2013
Dec. 30, 2012
Jan. 01, 2012
Disclosure Of Compensation Related Costs Sharebased Payments [Abstract]      
Risk-free interest rate 1.10% 1.00% 2.10%
Expected life (years) 5 years 6 months 5 years 5 years
Expected volatility 38.70% 45.00% 45.00%
Expected dividend yield 1.60% 0.00% 0.00%
Weighted average fair value per share $ 15.84 $ 13.70 $ 8.04