INCOME TAXES - Schedule of Provision and Effective tax rates (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 26, 2021	Sep. 27, 2020	Sep. 26, 2021	Sep. 27, 2020
Income Tax Disclosure [Abstract]
Income tax expense	$ (3,301)	$ 5,512	$ 7,255	$ 9,656
Effective tax rates	9.90%	28.90%		23.80%