Employee Compensation Plans (Details 6) (USD $)	12 Months Ended
	Sep. 27, 2014	Sep. 28, 2013	Sep. 29, 2012
Compensation Plans
Total stock based compensation expense recognized in the Consolidated Statements of Operations	$ 30,673,000	$ 26,081,000	$ 17,868,000
Total related tax benefit	12,005,000	9,936,000	6,004,000
Unrecognized share-based compensation costs	55,200,000
Weighted average period for the unrecognized cost	1 year 9 months 18 days
Employee Stock [Member]
Compensation Plans
Total stock based compensation expense recognized in the Consolidated Statements of Operations	4,444,000	4,401,000	3,412,000
Employee Stock Option [Member]
Compensation Plans
Total stock based compensation expense recognized in the Consolidated Statements of Operations	13,029,000	14,151,000	12,595,000
Restricted Stock Units RSU and Restricted Stock Award RSA [Member]
Compensation Plans
Total stock based compensation expense recognized in the Consolidated Statements of Operations	$ 13,200,000	$ 7,529,000	$ 1,861,000