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Summary Of Significant Accounting Policies (Reclassifications Out of Accumulated OCI) (Details) - USD ($)
$ in Thousands
 3 Months Ended 12 Months Ended
Oct. 02, 2015
Jul. 03, 2015
Apr. 03, 2015
Jan. 02, 2015
Oct. 03, 2014
Jun. 27, 2014
Mar. 28, 2014
Dec. 27, 2013
Oct. 02, 2015
Oct. 03, 2014
Sep. 27, 2013
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]                      
Other income and expense                 $ (1,299) $ 1,434 $ 263
Income tax expense (benefit) $ (1,411) $ 6,104 $ 3,174 $ (2,730) $ (191) $ 5,407 $ 3,810 $ (727) 5,137 8,299 5,333
Net income (loss) $ 1,167 $ 9,997 $ 3,646 $ (4,194) $ (786) $ 4,698 $ 7,404 $ (2,193) 10,616 9,123 $ 19,327
Reclassification Out Of Accumulated Other Comprehensive Income [Member]                      
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]                      
Net income (loss)                 562 346  
Unamortized Loss On Defined Benefit Pension Plans [Member]                      
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]                      
Cost of Sales / Operating Expense                 622 341  
Income tax expense (benefit)                 (237) (130)  
Foreign Currency Translation Adjustment [Member]                      
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]                      
Other income and expense                 $ 177 $ 135