Stock Options Activity Related to Equity Incentive Plans (Detail) (USD $) In Thousands, except Share data, unless otherwise specified	12 Months Ended
	Dec. 28, 2014	Dec. 29, 2013	Dec. 30, 2012
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]
Common Stock Options, Exercisable at end of period	2,881,874
Common Stock Options Outstanding
Common Stock Options, beginning balance	4,317,065	4,662,539	5,443,691
Common Stock Options, granted	222,060	591,490	215,670
Common Stock Options, cancelled	(9,670)	(8,500)	(58,153)
Common Stock Options, exercised	(939,340)	(928,464)	(938,669)
Common Stock Options, ending balance	3,590,115	4,317,065	4,662,539
Common Stock Options Weighted Average Exercise Price
Weighted Average Exercise Price, beginning balance	$ 17.17	$ 11.50	$ 10.78
Weighted Average Exercise Price, Stock options granted	$ 72.30	$ 50.83	$ 32.28
Weighted Average Exercise Price, Stock options cancelled	$ 54.56	$ 7.63	$ 11.91
Weighted Average Exercise Price, Stock options exercised	$ 9.56	$ 10.22	$ 9.55
Weighted Average Exercise Price, ending balance	$ 22.47	$ 17.17	$ 11.50
Weighted Average Exercise Price, Exercisable at end of period	$ 14.28
Weighted Average Remaining Life (Years)	5 years 3 months 18 days
Weighted Average Remaining Life (Years), Exercisable at end of period	4 years 6 months
Stock options, Aggregate Intrinsic Value, ending balance	$ 262,006
Stock options, Aggregate Intrinsic Value, Exercisable at end of period	$ 233,930