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Stock Options Activity Related to Equity Incentive Plans (Detail) - USD ($)
$ / shares in Units, $ in Thousands
 12 Months Ended
Jan. 01, 2017
Jan. 03, 2016
Dec. 28, 2014
Common Stock Options Outstanding      
Common Stock Options, beginning balance 3,323,476 3,590,115 4,317,065
Common Stock Options, granted 233,280 193,970 222,060
Common Stock Options, cancelled (12,798) (32,176) (9,670)
Common Stock Options, exercised (1,045,648) (428,433) (939,340)
Common Stock Options, ending balance 2,498,310 3,323,476 3,590,115
Common Stock Options, Exercisable at end of period 1,932,209    
Common Stock Options Weighted Average Exercise Price      
Weighted Average Exercise Price, beginning balance $ 28.57 $ 22.47 $ 17.17
Weighted Average Exercise Price, Stock options granted 129.42 111.63 72.30
Weighted Average Exercise Price, Stock options cancelled 104.23 73.55 54.56
Weighted Average Exercise Price, Stock options exercised 14.38 11.70 9.56
Weighted Average Exercise Price, ending balance 43.54 $ 28.57 $ 22.47
Weighted Average Exercise Price, Exercisable at end of period $ 27.05    
Weighted Average Remaining Life (Years) 5 years 1 month 6 days    
Weighted Average Remaining Life (Years), Exercisable at end of period 4 years 2 months 12 days    
Stock options, Aggregate Intrinsic Value, ending balance $ 289,237    
Stock options, Aggregate Intrinsic Value, Exercisable at end of period $ 255,414