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FAIR VALUE MEASUREMENTS - NARRATIVE (Details) - USD ($)
3 Months Ended 9 Months Ended
Oct. 03, 2021
Sep. 27, 2020
Oct. 03, 2021
Sep. 27, 2020
Dec. 31, 2020
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]          
Long-lived asset impairment charges $ 0 $ 0 $ 0 $ 9,143,000  
Significant other unobservable inputs (Level 3)          
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]          
Fair value, net asset (liability) $ 0   $ 0   $ 0