Share-Based Payments - Stock Option Activity (Detail) (USD $) In Thousands, except Share data, unless otherwise specified	12 Months Ended
	Aug. 30, 2014
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]
Outstanding, Beginning balance, Number of Shares	1,795,988
Granted, Number of Shares	348,615
Exercised, Number of Shares	(241,090)
Cancelled, Number of Shares	(64,625)
Outstanding, Ending balance, Number of Shares	1,838,888
Exercisable, Number of Shares	1,020,283
Expected to vest, Number of Shares	818,605
Available for future grants, Number of Shares	1,781,027
Outstanding, Beginning balance, Weighted Average Exercise Price	$ 228.95
Granted, Weighted Average Exercise Price	$ 426.05
Exercised, Weighted Average Exercise Price	$ 175.60
Cancelled, Weighted Average Exercise Price	$ 342.40
Outstanding, Ending balance, Weighted Average Exercise Price	$ 269.32
Exercisable, Weighted Average Exercise Price	$ 187.07
Expected to vest, Weighted Average Exercise Price	$ 371.84
Outstanding , Weighted-Average Remaining Contractual Term	6 years 3 months 11 days
Exercisable, Weighted-Average Remaining Contractual Term	4 years 9 months 15 days
Expected to vest, Weighted-Average Remaining Contractual Term	8 years 1 month 21 days
Outstanding, Aggregate Intrinsic Value	$ 495,611
Exercisable, Aggregate Intrinsic Value	358,902
Expected to vest, Aggregate Intrinsic Value	$ 124,403