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WARRANTIES (Details) - USD ($)
$ in Thousands
3 Months Ended
Dec. 28, 2018
Dec. 29, 2017
Movement in Standard and Extended Product Warranty Accrual, Increase (Decrease) [Roll Forward]    
Balance at beginning of period $ 8,499 $ 6,393
Expense accruals for warranties issued during the period 2,195 2,490
Less current period warranty claims paid 1,673 1,475
Balance at end of period $ 9,021 $ 7,408