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REVENUE FROM CONTRACTS WITH CUSTOMERS - Narrative (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 27, 2025	Sep. 28, 2024	Sep. 27, 2025	Sep. 28, 2024	Dec. 28, 2024	Dec. 30, 2023
Disaggregation of Revenue [Line Items]
Percentage of unbilled revenue billed during period			90.00%	90.00%
Unbilled revenue	$ 210,883		$ 210,883		$ 211,511	$ 228,000
Percentage of contract liabilities recognized as revenue during period			75.00%	80.00%
Contract liabilities					283,000	$ 273,000
Unpaid advanced client billings	34,000		$ 34,000		$ 38,000
Net provision expense			2,800	$ 7,200
Performance obligations expected to be satisfied	649,300		649,300
Sales-type lease, revenue	$ 12,100	$ 16,600	$ 35,700	$ 54,300
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2025-09-28
Disaggregation of Revenue [Line Items]
Revenue, remaining performance obligation, percentage	50.00%		50.00%
Performance obligations expected to be satisfied, expected timing	12 months		12 months

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