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EMPLOYEE BENEFIT PLANS - Benefit Obligation and Plan Assets (Details) - USD ($)
$ in Thousands
 12 Months Ended
Dec. 30, 2023
Dec. 31, 2022
Jan. 01, 2022
Pension Plans      
Change in projected benefit obligation:      
Benefit obligation at beginning of period $ 53,847 $ 70,875  
Interest cost 2,617 1,909 $ 1,818
Actuarial loss (gain) 1,376 (16,021)  
Benefits paid (3,055) (2,916)  
Benefit obligation at end of period 54,785 53,847 70,875
Change in plan assets:      
Fair value of plan assets at beginning of year 55,245 68,689  
Actual return on plan assets 3,769 (10,528)  
Benefits paid (3,055) (2,916)  
Fair value of plan assets at end of year 55,959 55,245 68,689
Defined Benefit Plan, Funded (Unfunded) Status of Plan 1,174 1,398  
Postretirement Benefit      
Change in projected benefit obligation:      
Benefit obligation at beginning of period 1,745 2,662  
Service cost 6 14 15
Interest cost 78 63 57
Actuarial loss (gain) 3 (763)  
Plan participants’ contribution 0 15  
Benefits paid (195) (246)  
Benefit obligation at end of period $ 1,637 $ 1,745 $ 2,662