v3.26.1
Temiscaming HPC Operations (Details) - USD ($)
$ in Thousands
3 Months Ended
Mar. 28, 2026
Mar. 29, 2025
Sep. 28, 2024
Restructuring Cost and Reserve [Line Items]      
Costs incurred to date $ 18,000    
Restructuring and related cost, expected cost remaining 1,000    
Asset Impairment Charges     $ 25,000
Permanent idling charges 40,883 $ 0  
Mothballing Costs      
Restructuring Cost and Reserve [Line Items]      
Costs incurred to date 7,000    
Employee Severance      
Restructuring Cost and Reserve [Line Items]      
Costs incurred to date 6,000    
Other Costs      
Restructuring Cost and Reserve [Line Items]      
Costs incurred to date 5,000    
Accelerated Depreciation      
Restructuring Cost and Reserve [Line Items]      
Permanent idling charges 35,000    
Other Asset Adjustment      
Restructuring Cost and Reserve [Line Items]      
Permanent idling charges $ 6,000