RESTRUCTURING-RELATED ACTIVITIES - Narrative (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 30, 2018	Dec. 31, 2017	Mar. 31, 2019
Restructuring Cost and Reserve [Line Items]
Expected restructuring charges			$ 7,701
40 North Foods
Restructuring Cost and Reserve [Line Items]
Expected restructuring charges	$ 700		702
Expected future payments for restructuring	$ 600
GNP
Restructuring Cost and Reserve [Line Items]
Expected restructuring charges		$ 7,000	$ 6,999
Expected future payments for restructuring		$ 5,400