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Derivatives And Fair Value Measurements (Schedule Of Fair Values Of Derivative Instruments) (Details) - USD ($)
$ in Thousands
Apr. 01, 2017
Oct. 01, 2016
Interest Rate Swap [Member]    
Derivatives And Fair Value Measurements [Line Items]    
Interest Rate Cash Flow Hedge Asset at Fair Value $ 4  
Interest Rate Cash Flow Hedge Liability at Fair Value   $ 132
Interest Rate Swap [Member] | Prepaid Expenses and Other Current Assets [Member]    
Derivatives And Fair Value Measurements [Line Items]    
Interest Rate Cash Flow Hedge Asset at Fair Value 4 0
Interest Rate Swap [Member] | Other Current Liabilities [Member]    
Derivatives And Fair Value Measurements [Line Items]    
Interest Rate Cash Flow Hedge Liability at Fair Value 0 132
Foreign Exchange Forward [Member] | Prepaid Expenses and Other Current Assets [Member]    
Derivatives And Fair Value Measurements [Line Items]    
Foreign Currency Cash Flow Hedge Asset at Fair Value 0 0
Foreign Exchange Forward [Member] | Other Current Liabilities [Member]    
Derivatives And Fair Value Measurements [Line Items]    
Foreign Currency Cash Flow Hedge Liability at Fair Value $ 2,695 $ 486