Balance Sheet Components - Components of Other Long-Term Liabilities (Detail) (USD $)	Sep. 26, 2014	Sep. 27, 2013
Other long-term liabilities:
Long-term income taxes payable	$ 55,200,000	$ 41,900,000
Long-term deferred income taxes	31,500,000	12,000,000
Other	65,000,000	90,100,000
Total other long-term liabilities	$ 151,716,000	$ 144,048,000