Quarterly report pursuant to Section 13 or 15(d)

INCOME TAXES (Details)

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INCOME TAXES (Details) - USD ($)
$ in Thousands
3 Months Ended 9 Months Ended
Sep. 28, 2019
Sep. 29, 2018
Sep. 28, 2019
Sep. 29, 2018
Income Tax Disclosure [Abstract]        
Non-cash impairment of intangible asset $ 32,636 $ 0 $ 32,636 $ 0
Impairment of intangible asset, tax benefit 7,400      
Effective income tax rate     25.70% 21.10%
Net discrete tax benefits     $ 1,100 $ 1,800
Tax benefit related stock compensation     3,400 2,900
Tax cuts and jobs act of 2017, adjustment expense       (5,700)
Realization of unrecognized net tax benefit (expense)     $ 4,500 $ 4,600
Tax increase (reduction) due to discrete items     1.20% (0.60%)
Change in effective income tax rate without discrete items     2.80%  
Decrease in unrecognized tax benefits and associated interest     $ 38,800  
Net unrecognized tax benefits and interest, if recognized, would reduce the annual effective tax rate 12,500   12,500  
Possible decrease in unrecognized income tax benefits $ 600   $ 600