SEGMENT INFORMATION - Segment Income or Loss Reconciliation (Details) - USD ($) $ in Thousands	3 Months Ended
	Apr. 01, 2022	Apr. 02, 2021
Segment Reporting Information [Line Items]
Total consolidated segment operating income (loss)	$ 2,536	$ (3,844)
Unallocated corporate expenses	(66,646)	(58,989)
Stock-based compensation	(7,586)	(8,398)
Amortization of intangibles	0	(507)
Non-operating expense, net	(1,371)	(1,584)
Income (loss) before income taxes	1,165	(5,428)
Operating segments
Segment Reporting Information [Line Items]
Total consolidated segment operating income (loss)	11,278	5,068
Corporate, non-segments
Segment Reporting Information [Line Items]
Unallocated corporate expenses	$ (1,156)	$ (7)