v3.26.1
REVENUE FROM CONTRACTS WITH CUSTOMERS - Narrative (Details) - USD ($)
$ in Thousands
3 Months Ended 6 Months Ended
Jun. 27, 2026
Jun. 28, 2025
Jun. 27, 2026
Jun. 28, 2025
Dec. 27, 2025
Dec. 28, 2024
Disaggregation of Revenue [Line Items]            
Percentage of unbilled revenue billed during period     85.00% 85.00%    
Unbilled revenue $ 195,660   $ 195,660   $ 200,591 $ 212,000
Percentage of contract liabilities recognized as revenue during period     70.00% 70.00%    
Contract liabilities         256,000 $ 283,000
Unpaid advanced client billings 50,000   $ 50,000   $ 43,000  
Net provision (recovery) expense     200 $ 1,000    
Performance obligations expected to be satisfied 699,900   699,900      
Sales-type lease, revenue $ 8,700 $ 12,100 $ 20,900 $ 23,600    
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2026-06-28            
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