Quarterly report pursuant to Section 13 or 15(d)

INCOME TAXES (Details)

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INCOME TAXES (Details) - USD ($)
3 Months Ended
Apr. 03, 2021
Mar. 28, 2020
Income Tax Disclosure [Abstract]    
Effective income tax rate 20.60% 75.60%
Net discrete tax benefits (expense) $ 0 $ 7,700,000
Tax benefit recognized due to the enactment of Swiss tax reform   6,300,000
Tax benefit related to state tax return filings   $ 900,000
Tax increase (reduction) due to discrete items   69.30%
Income tax rate, excluding discrete items 20.60% 6.30%
Increase in unrecognized tax benefits and associated interest $ 300,000  
Net unrecognized tax benefits and interest, if recognized, would reduce the annual effective tax rate 13,700,000  
Possible decrease in unrecognized income tax benefits $ 600,000