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SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Narrative (Details)
$ in Thousands
 12 Months Ended
Dec. 27, 2025
USD ($)
customer
segment
contract
Dec. 28, 2024
USD ($)
customer
Dec. 30, 2023
Summary of significant accounting policies      
Number of segments | segment 3    
Length of fiscal year 364 days 364 days 364 days
Restricted investments $ 50,500 $ 39,100  
Accounts receivable retainage $ 7,000 $ 8,600  
Accounts receivable retainage, collection period 18 months 18 months  
Inventory on consignment $ 19,000 $ 21,800  
Assets held for sale 6,340    
Impairment of assets to be disposed of $ 3,300    
Number of insurance contracts with third party by Ardellis | contract 334    
Reserve associated with contracts to third party by Ardellis $ 13,900 $ 12,100  
Retail and corporate segments | Disposed of by Sale      
Summary of significant accounting policies      
Gain on the sale of real estate, machinery and equipment $ 13,800    
Disposal Group, Not Discontinued Operation, Gain (Loss) on Disposal, Statement of Income or Comprehensive Income [Extensible Enumeration] NET LOSS (GAIN) ON DISPOSITION AND IMPAIRMENT OF ASSETS    
Accounts receivables | Customer | Top two customers      
Summary of significant accounting policies      
Top two customers | customer 2 2  
Concentration of accounts receivable related to largest customers $ 95,700 $ 112,100  
Minimum      
Summary of significant accounting policies      
Length of fiscal year 364 days    
Maximum      
Summary of significant accounting policies      
Length of fiscal year 371 days