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EMPLOYEE BENEFIT PLANS - Projected Benefit Obligation and Fair Value of Plan Assets for Pension Plans with Projected Benefit Obligations in Excess of Plan Assets (Details) - USD ($)
$ in Thousands
Dec. 29, 2018
Dec. 30, 2017
Retirement Benefits [Abstract]    
Projected benefit obligation $ 273,625 $ 381,960
Fair value of plan assets $ 213,249 $ 292,152