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EMPLOYEE BENEFIT PLANS - Components of Net Period Benefit Cost (Details) - USD ($)
$ in Thousands
 12 Months Ended
Dec. 29, 2018
Dec. 30, 2017
Dec. 31, 2016
Retirement Benefits [Abstract]      
Service cost $ 2,612 $ 3,110 $ 2,453
Interest cost 10,850 11,642 12,046
Expected return on plan assets (15,516) (14,249) (14,164)
Amortization of prior service cost (credit) (514) (496) (292)
Amortization of net loss (gain) 2,990 3,845 2,003
Curtailment 0 0 (279)
Settlements 0 0 788
Other 910 0 0
Net periodic cost (benefit) $ 1,332 $ 3,852 $ 2,555