SEGMENT INFORMATION - Segment Income or Loss Reconciliation (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jul. 01, 2022	Jul. 02, 2021	Jul. 01, 2022	Jul. 02, 2021
Segment Reporting Information [Line Items]
Total consolidated segment operating income (loss)	$ 15,082	$ 2,136	$ 17,618	$ (1,708)
Unallocated corporate expenses	(67,319)	(58,369)	(133,965)	(117,358)
Stock-based compensation	(5,575)	(4,033)	(13,161)	(12,431)
Amortization of intangibles	0	0	0	(507)
Non-operating expense, net	2,880	(2,777)	1,509	(4,361)
Income (loss) before income taxes	17,962	(641)	19,127	(6,069)
Operating Segments
Segment Reporting Information [Line Items]
Total consolidated segment operating income (loss)	21,402	6,551	32,680	11,619
Corporate, Non-segments
Segment Reporting Information [Line Items]
Unallocated corporate expenses	$ (745)	$ (382)	$ (1,901)	$ (389)