RESTRUCTURING-RELATED ACTIVITIES (Details) - USD ($) $ in Thousands	3 Months Ended	12 Months Ended
	Jun. 25, 2017	Dec. 30, 2018	Dec. 31, 2017
Restructuring Cost and Reserve [Line Items]
Expected future restructuring costs		$ 7,701
40 North Foods
Restructuring Cost and Reserve [Line Items]
Expected future restructuring costs		702
Expected future payments for restructuring		600
GNP Restructuring Plan
Restructuring Cost and Reserve [Line Items]
Expected future restructuring costs			$ 7,000
Expected future payments for restructuring			5,400
Discontinued Operations, Held-for-sale | Alabama Processing Plant
Restructuring Cost and Reserve [Line Items]
Impairment charges, assets held for sale	$ 3,500		3,500
Discontinued Operations, Held-for-sale | Dublin Processing Plant
Restructuring Cost and Reserve [Line Items]
Impairment charges, assets held for sale			$ 1,500
Rose Energy, Ltd.
Restructuring Cost and Reserve [Line Items]
Impairment of tangible assets		$ 2,600