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SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Reclassifications Out of Accumulated OCI) (Details) - USD ($)
$ in Thousands
12 Months Ended
Sep. 29, 2017
Sep. 30, 2016
Oct. 02, 2015
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]      
Amounts reclassified from accumulated other comprehensive income $ 517 $ 102 $ 562
Unamortized loss on defined benefit pension plans      
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]      
Amortization of loss 731 566 622
Tax effects (278) (215) (237)
Foreign currency translation adjustments      
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]      
Amounts reclassified from accumulated other comprehensive income $ 64 $ (249) $ 177