Derivative Instruments and Hedging Activities (Narrative) (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Apr. 02, 2016	Mar. 28, 2015	Apr. 02, 2016	Mar. 28, 2015	Oct. 03, 2015
Derivative [Line Items]
Gross notional amount of foreign exchange derivatives outstanding	$ 35,964	$ 48,529	$ 35,964	$ 48,529
Net notional amount of foreign exchange derivatives	33,644	41,696	33,644	41,696
Recognized in earnings as a result of the ineffectiveness of cash flow hedges	1	1	1	1
Amount projected to be reclassified from Accumulated Other Comprehensive Income into earnings, within twelve months		$ 1,848	$ (213)
Maximum remaining maturity of any forward or optional contract derivatives (in years)		2 years 2 months 12 days	1 year 2 months 12 days
Foreign Exchange Balance Sheet Derivatives [Member]
Derivative [Line Items]
Gross notional amount of foreign exchange derivatives outstanding	70,751	$ 66,701	$ 70,751	66,701
Net notional amount of foreign exchange derivatives	15,359	17,122	15,359	17,122
Foreign currency exchange contract, net liability value	409	286	409	286
Foreign Exchange Cash Flow Hedges [Member]
Derivative [Line Items]
Foreign currency exchange contract, net asset value	768	488	768	488
Foreign currency exchange contract, net asset market value	188	841	188	841	$ 841
Foreign currency exchange contract, net liability market value	$ 956	$ 353	$ 956	$ 353	$ 353