BUSINESS ACQUISITIONS - Pro Forma Information (Details) - USD ($) $ / shares in Units, $ in Thousands	12 Months Ended
	Dec. 29, 2019	Dec. 30, 2018	Dec. 31, 2017
Business Combinations [Abstract]
Net Sales	$ 12,462,566	$ 12,342,475	$ 12,165,647
Net Income	$ 385,958	$ 140,508	$ 608,188
Net income attributable to Pilgrim's Pride Corporation per common share - diluted (in dollars per share)	$ 1.55	$ 0.56	$ 2.44