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SEGMENT INFORMATION - Schedule of Reconciliation of Operating Income from Segments to Consolidated (Details) - USD ($) $ in Thousands	3 Months Ended			9 Months Ended
	Sep. 26, 2025	Jun. 27, 2025	Sep. 27, 2024	Sep. 26, 2025	Sep. 27, 2024
Segment Reporting Information [Line Items]
Total consolidated segment operating income	$ 9,819		$ 35,424	$ 23,816	$ 10,268
Stock-based compensation	(7,324)		(5,710)	(23,486)	(19,587)
Restructuring and related charges	(1,087)		(281)	(1,737)	(15,260)
Lease-related asset impairment and other charges	0	$ (1,600)	(1,279)	(1,637)	(10,279)
Asset impairment charges	0		(1,824)	0	(1,824)
Non-recurring advisory fees	(749)		0	(827)	(755)
Non-operating expense, net	(1,071)		(6,618)	(3,611)	(8,435)
Income before income taxes	8,748		28,806	20,205	1,833
Operating Segments
Segment Reporting Information [Line Items]
Total consolidated segment operating income	$ 18,979		$ 44,518	$ 51,503	$ 57,973

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