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SEGMENT INFORMATION - Schedule of Reconciliation of Operating Income from Segments to Consolidated (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 27, 2025	Jun. 28, 2024	Jun. 27, 2025	Jun. 28, 2024
Segment Reporting Information [Line Items]
Total consolidated segment operating income	$ 3,870	$ (15,630)	$ 13,997	$ (25,156)
Stock-based compensation	(7,697)	(6,954)	(16,162)	(13,877)
Restructuring and related charges	(650)	(11,482)	(650)	(14,979)
Lease-related asset impairment and other charges	(1,637)	(9,000)	(1,637)	(9,000)
Non-recurring advisory fees	(78)	(406)	(78)	(755)
Non-operating expense, net	(894)	(805)	(2,540)	(1,817)
Income (loss) before income taxes	2,976	(16,435)	11,457	(26,973)
Operating Segments
Segment Reporting Information [Line Items]
Total consolidated segment operating income	$ 13,932	$ 12,212	$ 32,524	$ 13,455

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