Balance Sheet Components - Components of Accrued Expenses (Detail) (USD $)	Sep. 26, 2014	Sep. 27, 2013
Accrued expenses:
Accrued compensation and benefits	$ 121,400,000	$ 104,800,000
DCP liabilities	57,900,000	54,600,000
Income taxes payable	30,900,000	40,000,000
Current deferred tax liabilities	10,800,000	7,600,000
Other	103,400,000	113,900,000
Total accrued expenses	$ 324,409,000	$ 320,884,000