Derivative Instruments and Hedging Activities (Fair Value Of Outstanding Designated And Undesignated Derivative Assets And Liabilities) (Details) - USD ($) $ in Thousands	Apr. 01, 2017	Oct. 01, 2016
Prepaid Expenses and Other Current Assets [Member]
Derivatives, Fair Value [Line Items]
Derivative asset, fair value	$ 4,683	$ 149
Other Accrued Liabilities [Member]
Derivatives, Fair Value [Line Items]
Derivative liability, fair value	700	711
Cash Flow Hedging [Member]
Derivatives, Fair Value [Line Items]
Derivative asset, fair value	373	149
Designated Hedge Derivatives[Member] | Prepaid Expenses and Other Current Assets [Member]
Derivatives, Fair Value [Line Items]
Derivative asset, fair value	4,683	149
Designated Hedge Derivatives[Member] | Other Accrued Liabilities [Member]
Derivatives, Fair Value [Line Items]
Derivative liability, fair value	504	633
Designated Hedge Derivatives[Member] | Cash Flow Hedging [Member] | Prepaid Expenses and Other Current Assets [Member]
Derivatives, Fair Value [Line Items]
Derivative asset, fair value	373
Designated Hedge Derivatives[Member] | Cash Flow Hedging [Member] | Other Accrued Liabilities [Member]
Derivatives, Fair Value [Line Items]
Derivative liability, fair value	504
Designated Hedge Derivatives[Member] | Interest Rate Swap [Member] | Prepaid Expenses and Other Current Assets [Member]
Derivatives, Fair Value [Line Items]
Derivative asset, fair value	4,310
Designated Hedge Derivatives[Member] | Interest Rate Swap [Member] | Other Accrued Liabilities [Member]
Derivatives, Fair Value [Line Items]
Derivative liability, fair value	0
Derivatives Not Designated As Hedges [Member] | Prepaid Expenses and Other Current Assets [Member]
Derivatives, Fair Value [Line Items]
Derivative asset, fair value	0	0
Derivatives Not Designated As Hedges [Member] | Other Accrued Liabilities [Member]
Derivatives, Fair Value [Line Items]
Derivative liability, fair value	$ 196	$ 78