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INVENTORIES (Details) - USD ($)
$ in Thousands
Apr. 04, 2020
Dec. 28, 2019
Inventory Disclosure [Abstract]    
Components and parts $ 25,720 $ 35,626
Work-in-process 13,198 11,034
Finished goods 400,789 405,618
Inventories $ 439,707 $ 452,278