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WARRANTIES (Details) - USD ($)
$ in Thousands
3 Months Ended
Jan. 01, 2021
Dec. 27, 2019
Movement in Standard and Extended Product Warranty Accrual, Increase (Decrease) [Roll Forward]    
Balance at beginning of period $ 10,849 $ 9,190
Expense accruals for warranties issued during the period 3,177 3,335
Less current period warranty claims paid 2,046 2,082
Balance at end of period $ 11,980 $ 10,443