Derivative Instruments and Hedging Activities (Narrative) (Details) - USD ($) $ in Thousands	12 Months Ended
	Oct. 03, 2015	Sep. 27, 2014	Sep. 28, 2013
Derivative [Line Items]
Gross notional amount of foreign exchange derivatives outstanding	$ 48,529	$ 46,763
Net notional amount of foreign exchange derivatives	41,696	39,608
Recognized in earnings as a result of the ineffectiveness of cash flow hedges	1	1	$ 1
Amount projected to be reclassified from Accumulated Other Comprehensive Income into earnings	$ 700
Maximum remaining maturity of any forward or optional contract derivatives (in years)	1 year 8 months 12 days
Foreign Exchange Cash Flow Hedges [Member]
Derivative [Line Items]
Net market value of the foreign currency exchange contracts	$ 488	1,572
Net market value of the foreign currency exchange contracts, assets	841	1,750
Net market value of the foreign currency exchange contracts, liabilities	353	178
Foreign Exchange Balance Sheet Derivative Contracts [Member]
Derivative [Line Items]
Gross notional amount of foreign exchange derivatives outstanding	66,701	58,271
Net notional amount of foreign exchange derivatives	17,122	12,225
Net market value of the foreign currency exchange contracts	$ 286	$ 641