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DERIVATIVES FINANCIAL INSTRUMENTS (Fair value of derivative instruments) (Details) - USD ($)
$ in Thousands
 6 Months Ended
Mar. 30, 2019
Sep. 29, 2018
Derivatives, Fair Value [Line Items]    
Derivative Instruments, Gain (Loss) Reclassification from Accumulated OCI to Income, Estimate of Time to Transfer 12 months  
Total derivative, Notional Amount $ 35,511 $ 43,095
Designated as Hedging Instrument [Member] | Foreign Exchange Forward [Member]    
Derivatives, Fair Value [Line Items]    
Foreign exchange forward contract, term of contract 12 months  
Total derivative, Notional Amount $ 35,511 43,095
Prepaid Expenses And Other Current Assets [Member]    
Derivatives, Fair Value [Line Items]    
Derivative Asset, Fair Value, Gross Asset [1],[2] 150  
Prepaid Expenses And Other Current Assets [Member] | Designated as Hedging Instrument [Member] | Foreign Exchange Forward [Member]    
Derivatives, Fair Value [Line Items]    
Derivative Asset, Fair Value, Gross Asset [1],[2] $ 150  
Accrued Liabilities [Member]    
Derivatives, Fair Value [Line Items]    
Derivative Liability, Fair Value, Gross Liability [1],[3]   (1,071)
Accrued Liabilities [Member] | Designated as Hedging Instrument [Member] | Foreign Exchange Forward [Member]    
Derivatives, Fair Value [Line Items]    
Derivative Liability, Fair Value, Gross Liability [1],[3]   $ (1,071)
[1] Hedged amounts expected to be recognized to income within the next twelve months.
[2] The fair value of derivative assets is measured using level 2 fair value inputs and is included in prepaid expenses and other current assets on our Consolidated Condensed Balance Sheet.
[3] The fair value of derivative liabilities is measured using level 2 fair value inputs and is included in accrued expenses and other current liabilities on our Consolidated Condensed Balance Sheet.