BUSINESS ACQUISITIONS - Narrative (Details) $ in Thousands, £ in Millions, lb in Millions, bird / WK in Millions				12 Months Ended
	Sep. 08, 2017 USD ($) bird / WK lb plant	Sep. 08, 2017 GBP (£)	Jan. 06, 2017 USD ($)	Dec. 30, 2018 USD ($) employee bird / WK plant	Dec. 31, 2017 USD ($)	Apr. 01, 2018 USD ($)	Sep. 24, 2017 USD ($)	Mar. 26, 2017 USD ($)
Business Acquisition [Line Items]
Maximum processing capacity of employees per week (in birds per week) | bird / WK				45.3
Number of employees | employee				52,100
Trade names
Business Acquisition [Line Items]
Value of customer relationships				$ 0	$ 38,200
Customer relationships
Business Acquisition [Line Items]
Value of customer relationships				$ 0	92,900
Moy Park
Business Acquisition [Line Items]
Percentage of equity acquired	100.00%
Cash consideration	$ 301,300
Note payable for consideration transferred | £		£ 562.5
Fresh processing plants (in plants) | plant	4
Maximum processing capacity of employees per week (in birds per week) | bird / WK	6.1
Food prepared per year (in pounds) | lb	462.0
Number of employees | employee				10,300
Transaction costs	$ 19,900				4,500	$ 200	$ 15,000
GNP
Business Acquisition [Line Items]
Percentage of equity acquired			100.00%
Cash consideration			$ 350,000
Maximum processing capacity of employees per week (in birds per week) | bird / WK				2.1
Number of employees | employee				1,600
Transaction costs			600					$ 600
Processing plants acquired (in plants) | plant				2
Net sales of acquiree since acquisition date				$ 398,400	433,900
Net income (loss) of acquiree since acquisition date				$ (1,400)	$ 30,400
Value of customer relationships			$ 131,120
GNP | Trade names
Business Acquisition [Line Items]
Royalty rate used in determination of fair value			2.00%
Net sales growth rate used in determination of fair value			2.50%
Percentage of pre-tax income used to estimate income taxes			39.30%
Income tax amortization benefit factor used in determination of fair value			1.2098
Discount rate to determine hypothetical savings generated by avoiding royalty costs			13.80%
Value of customer relationships			$ 38,200
GNP | Customer relationships
Business Acquisition [Line Items]
Net sales growth rate used in determination of fair value			2.50%
Percentage of pre-tax income used to estimate income taxes			39.30%
Income tax amortization benefit factor used in determination of fair value			1.2098
Discount rate to determine hypothetical savings generated by avoiding royalty costs			13.80%
Customer attrition rate used in determination of fair value			4.00%
Value of customer relationships			$ 92,900