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RESTRICTED CASH AND INVESTMENTS (Details) - USD ($)
$ in Thousands
3 Months Ended 9 Months Ended
Sep. 28, 2025
Sep. 29, 2024
Sep. 28, 2025
Sep. 29, 2024
Dec. 29, 2024
Restricted Cash and Investments [Line Items]          
Cash collateral held by insurance carriers $ 7,653   $ 7,653   $ 22,387
Cash and cash equivalents held in Trust 22,805   22,805   15,406
Investments held in Trust 73,331   73,331   99,506
Company owned life insurance policies 45,464   45,464   41,846
Other restricted cash and cash equivalents 438   438   771
Restricted cash and investments 149,691   149,691   179,916
Held-to-maturity Securities, Reconciliation to Fair Value [Abstract]          
Amortized cost of held-to-maturity investments 73,331   73,331   99,506
Gross unrealized gains 564   564   212
Gross unrealized losses (275)   (275)   (1,126)
Fair value 73,620   73,620   98,592
Held-to-maturity securities, amortized cost [Abstract]          
Amortized cost of held-to-maturity investments 73,331   73,331   99,506
Held-to-maturity securities, fair value [Abstract]          
Fair value 73,620   73,620   98,592
Unrealized gains (losses) on Investments 2,176 $ 2,099 3,617 $ 4,821  
Municipal debt securities          
Held-to-maturity Securities, Reconciliation to Fair Value [Abstract]          
Amortized cost of held-to-maturity investments 7,891   7,891   22,490
Gross unrealized gains 4   4   0
Gross unrealized losses (4)   (4)   (135)
Fair value 7,891   7,891   22,355
Held-to-maturity securities, amortized cost [Abstract]          
Amortized cost of held-to-maturity investments 7,891   7,891   22,490
Held-to-maturity securities, fair value [Abstract]          
Fair value 7,891   7,891   22,355
Corporate debt securities          
Held-to-maturity Securities, Reconciliation to Fair Value [Abstract]          
Amortized cost of held-to-maturity investments 55,405   55,405   64,313
Gross unrealized gains 499   499   144
Gross unrealized losses (259)   (259)   (945)
Fair value 55,645   55,645   63,512
Held-to-maturity securities, amortized cost [Abstract]          
Amortized cost of held-to-maturity investments 55,405   55,405   64,313
Held-to-maturity securities, fair value [Abstract]          
Fair value 55,645   55,645   63,512
Agency mortgage-backed securities          
Held-to-maturity Securities, Reconciliation to Fair Value [Abstract]          
Amortized cost of held-to-maturity investments 5,064   5,064   11,703
Gross unrealized gains 60   60   68
Gross unrealized losses 0   0   (17)
Fair value 5,124   5,124   11,754
Held-to-maturity securities, amortized cost [Abstract]          
Amortized cost of held-to-maturity investments 5,064   5,064   11,703
Held-to-maturity securities, fair value [Abstract]          
Fair value 5,124   5,124   11,754
U.S. government and agency securities          
Held-to-maturity Securities, Reconciliation to Fair Value [Abstract]          
Amortized cost of held-to-maturity investments 4,971   4,971   1,000
Gross unrealized gains 1   1   0
Gross unrealized losses (12)   (12)   (29)
Fair value 4,960   4,960   971
Held-to-maturity securities, amortized cost [Abstract]          
Amortized cost of held-to-maturity investments 4,971   4,971   1,000
Held-to-maturity securities, fair value [Abstract]          
Fair value 4,960   4,960   $ 971
Restricted cash and investments          
Held-to-maturity Securities, Reconciliation to Fair Value [Abstract]          
Amortized cost of held-to-maturity investments 73,331   73,331    
Fair value 73,620   73,620    
Held-to-maturity securities, amortized cost [Abstract]          
Due in one year or less 40,590   40,590    
Due after one year through five years 32,741   32,741    
Amortized cost of held-to-maturity investments 73,331   73,331    
Held-to-maturity securities, fair value [Abstract]          
Due in one year or less 40,456   40,456    
Due after one year through five years 33,164   33,164    
Fair value $ 73,620   $ 73,620