v3.26.3
REVENUE FROM CONTRACTS WITH CUSTOMERS - Narrative (Details) - USD ($)
$ in Thousands
3 Months Ended 9 Months Ended
Sep. 26, 2026
Sep. 27, 2025
Sep. 26, 2026
Sep. 27, 2025
Dec. 27, 2025
Dec. 28, 2024
Disaggregation of Revenue [Line Items]            
Percentage of unbilled revenue billed during period     90.00% 90.00%    
Unbilled revenue $ 198,955   $ 198,955   $ 200,591 $ 212,000
Percentage of contract liabilities recognized as revenue during period     70.00% 75.00%    
Contract liabilities         256,000 $ 283,000
Unpaid advanced client billings 60,000   $ 60,000   $ 43,000  
Net provision (recovery) expense     900 $ 2,800    
Performance obligations expected to be satisfied 675,300   675,300      
Sales-type lease, revenue $ 6,700 $ 12,100 $ 27,600 $ 35,700    
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2026-09-27            
Disaggregation of Revenue [Line Items]            
Revenue, remaining performance obligation, percentage 60.00%   60.00%      
Performance obligations expected to be satisfied, expected timing 12 months   12 months