Derivative Instruments and Hedging Activities (Narrative) (Details) - USD ($) $ in Thousands	12 Months Ended
	Oct. 01, 2016	Oct. 03, 2015	Sep. 27, 2014
Derivative [Line Items]
Gross notional amount of foreign exchange derivatives outstanding	$ 29,092	$ 48,529
Net notional amount of foreign exchange derivatives	24,884	41,696
Recognized in earnings as a result of the ineffectiveness of cash flow hedges	1	1	$ 1
Cash flow hedge gain (loss) to be reclassified within twelve months	$ 416
Maximum remaining maturity of foreign currency derivatives	9 months 18 days
Foreign Exchange Cash Flow Hedges [Member]
Derivative [Line Items]
Net market value of the foreign currency exchange contracts	$ 484	488
Net market value of the foreign currency exchange contracts, assets	149	841
Net market value of the foreign currency exchange contracts, liabilities	633	353
Foreign Exchange Balance Sheet Derivative Contracts [Member]
Derivative [Line Items]
Gross notional amount of foreign exchange derivatives outstanding	13,187	66,701
Net notional amount of foreign exchange derivatives	1,347	17,122
Net market value of the foreign currency exchange contracts	$ 78	$ 286