Derivative Instruments and Hedging Activities (Fair Value Of Outstanding Designated And Undesignated Derivative Assets And Liabilities) (Details) (USD $) In Thousands, unless otherwise specified	Dec. 27, 2014	Sep. 27, 2014
Derivatives, Fair Value [Line Items]
Derivative asset, fair value	$ 2,425	$ 2,391
Derivative liability, fair value	238	178
Foreign Exchange Cash Flow Hedges [Member]
Derivatives, Fair Value [Line Items]
Derivative asset, fair value	2,362	1,750
Designated as Hedging Instrument [Member]
Derivatives, Fair Value [Line Items]
Derivative asset, fair value	2,362	1,750
Derivative liability, fair value	238	178
Designated as Hedging Instrument [Member] | Foreign Exchange Cash Flow Hedges [Member]
Derivatives, Fair Value [Line Items]
Derivative asset, fair value	2,362	1,750
Derivative liability, fair value	238	178
Not Designated as Hedging Instrument [Member] | Foreign Exchange Balance Sheet Derivative Contracts [Member]
Derivatives, Fair Value [Line Items]
Derivative asset, fair value	$ 63	$ 641