Derivative Instruments And Hedging Activities (Details) - contract	3 Months Ended
	Dec. 30, 2016	Jan. 01, 2016
Derivative [Line Items]
Derivative, Number of Instruments Held	0	0
Revenue Other Than U.S. Dollar [Member]
Derivative [Line Items]
Percent Of Revenues In Foreign Currency	16.00%
Revenue Other Than U.S. Dollar [Member] | Other Foreign Currencies [Member]
Derivative [Line Items]
Percent Of Revenues In Foreign Currency	2.00%
Euro [Member] | Revenue Other Than U.S. Dollar [Member]
Derivative [Line Items]
Percent Of Revenues In Foreign Currency	7.00%
Canadian Dollars [Member] | Revenue Other Than U.S. Dollar [Member]
Derivative [Line Items]
Percent Of Revenues In Foreign Currency	5.00%
Hong Kong, Dollars | Revenue Other Than U.S. Dollar [Member]
Derivative [Line Items]
Percent Of Revenues In Foreign Currency	2.00%