Employee Compensation Plans (Details 6) (USD $)	12 Months Ended
	Sep. 28, 2013	Sep. 29, 2012	Sep. 24, 2011
Employee Compensation Plans
Total stock based compensation expense recognized in the Consolidated Statements of Operations	$ 26,081,000	$ 17,868,000	$ 10,361,000
Total related tax benefit	9,936,000	6,004,000	3,147,000
Unrecognized share-based compensation costs	30,500,000
Weighted average period for the unrecognized cost	1 year 3 months 11 days
ESPP
Employee Compensation Plans
Total stock based compensation expense recognized in the Consolidated Statements of Operations	4,401,000	3,412,000	2,155,000
Stock options
Employee Compensation Plans
Total stock based compensation expense recognized in the Consolidated Statements of Operations	14,151,000	12,595,000	8,206,000
RSUs/PSUs/RSAs
Employee Compensation Plans
Total stock based compensation expense recognized in the Consolidated Statements of Operations	$ 7,529,000	$ 1,861,000