Derivative Instruments and Hedging Activities (Fair Value Of Outstanding Designated And Undesignated Derivative Assets And Liabilities) (Details) - USD ($) $ in Thousands	Jul. 01, 2017	Oct. 01, 2016
Prepaid Expenses and Other Current Assets
Derivatives, Fair Value [Line Items]
Derivative assets	$ 3,592	$ 149
Other Accrued Liabilities
Derivatives, Fair Value [Line Items]
Derivative liabilities	382	711
Cash flow derivatives
Derivatives, Fair Value [Line Items]
Derivative assets	101	149
Designated hedge derivatives | Prepaid Expenses and Other Current Assets
Derivatives, Fair Value [Line Items]
Derivative assets	3,592	149
Designated hedge derivatives | Other Accrued Liabilities
Derivatives, Fair Value [Line Items]
Derivative liabilities	339	633
Designated hedge derivatives | Cash flow derivatives | Prepaid Expenses and Other Current Assets
Derivatives, Fair Value [Line Items]
Derivative assets	101
Designated hedge derivatives | Cash flow derivatives | Other Accrued Liabilities
Derivatives, Fair Value [Line Items]
Derivative liabilities	339
Designated hedge derivatives | Interest rate swaps | Prepaid Expenses and Other Current Assets
Derivatives, Fair Value [Line Items]
Derivative assets	3,491
Designated hedge derivatives | Interest rate swaps | Other Accrued Liabilities
Derivatives, Fair Value [Line Items]
Derivative liabilities	0
Hedge derivatives not designated | Prepaid Expenses and Other Current Assets
Derivatives, Fair Value [Line Items]
Derivative assets	0	0
Hedge derivatives not designated | Other Accrued Liabilities
Derivatives, Fair Value [Line Items]
Derivative liabilities	$ 43	$ 78