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WARRANTY LIABILITIES (Details) - USD ($)
$ in Thousands
9 Months Ended
Sep. 28, 2019
Sep. 29, 2018
Warranty liability activity [Roll Forward]    
Beginning balance $ 22,807 $ 19,405
Settlements in cash or kind (12,957) (11,963)
Warranties issued and adjustments to preexisting warranties 11,336 13,837
Ending balance $ 21,186 $ 21,279