PENSION AND OTHER POSTRETIREMENT BENEFITS - Schedule of Economic Assumptions, and Impact of Change in Discount Rate on Benefit Obligation (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 25, 2022	Dec. 26, 2021
Net pension and other postretirement cost
Increase in Discount Rate of 0.25% - impact on defined benefit obligation for pension benefits	$ (6,358)
Decrease in Discount Rate of 0.25% - impact on defined benefit obligation for pension benefits	$ 6,693
Pension Benefits
Benefit obligation
Discount rate	4.81%	5.04%	2.23%
Net pension and other postretirement cost
Discount rate	4.93%	3.67%	2.08%
Expected return on plan assets	4.95%	4.68%	3.53%
Other Benefits
Benefit obligation
Discount rate	5.06%	5.16%	2.38%
Net pension and other postretirement cost
Discount rate	5.16%	2.38%	1.80%