Long-Term Debt (Details 2) (USD $) In Millions, unless otherwise specified	12 Months Ended						12 Months Ended			12 Months Ended
	Sep. 27, 2014	Sep. 28, 2013	Sep. 27, 2014 Eurodollar [Member] Minimum [Member]	Sep. 27, 2014 Restated Credit Agreement [Member]	Sep. 28, 2013 Restated Credit Agreement [Member]	Sep. 24, 2011 Restated Credit Agreement [Member]	Sep. 27, 2014 Restated Credit Agreement [Member] Base Rate [Member] Minimum [Member]	Sep. 27, 2014 Restated Credit Agreement [Member] Base Rate [Member] Maximum [Member]	Sep. 27, 2014 Restated Credit Agreement [Member] Eurodollar [Member]	Sep. 27, 2014 Restated Credit Agreement [Member] Eurodollar [Member] Maximum [Member]	Sep. 27, 2014 Restated Credit Agreement [Member] Federal Funds Rate [Member]	Sep. 27, 2014 Restated Credit Agreement [Member] Domestic Line of Credit [Member]	Sep. 27, 2014 Restated Credit Agreement [Member] Foreign Line of Credit [Member]
Long-term debt
Credit facility												$ 800.0	$ 200.0
Aggregate amount of increase option				500.0
Margin added to reference rate for base rate (as a percent)									1.00%		0.50%
Applicable margin added to reference rate for variable interest (as a percent)			1.50%				0.50%	1.00%		2.00%
Average effective interest rate (as a percent)	3.70%	3.50%
Commitment fee on revolving credit facilities (as a percent)				0.20%
Outstanding letters of credit				7.8	5.0
Amounts drawn against letters of credit				0	0
Debt issuance costs deferred to be amortized over the life off the loan						$ 46.0