Income Taxes (Narrative) (Details) - USD ($) $ in Thousands	12 Months Ended
	Sep. 25, 2015	Sep. 26, 2014	Sep. 27, 2013	Sep. 28, 2012	Sep. 25, 2009
Income Tax Disclosure [Abstract]
Deferred income tax withholding tax foreign earnings	$ 513,200
U.S. income taxes, adjusted for any foreign tax credits, and withholding taxes	129,400
Net operating loss carryovers for Federal tax purposes	3,900				$ 9,700
Net operating loss carryovers for California tax purposes	$ 9,600				$ 9,600
Effective tax rate	25.40%	24.40%	24.10%
Unrecognized tax benefits, gross	$ 65,161	$ 31,351	$ 32,468	$ 16,880
Unrecognized tax benefits if recognized, would affect our effective tax rate	53,000
Unrecognized tax benefits, expected reduction as a result of settlement		8,400
Increase in interest expense for current tax provision	600	700
Reduction in penalties for current tax provision	$ (400)	$ (500)