BUSINESS ACQUISITIONS - Pro Forma Information (Details) - USD ($) $ / shares in Units, $ in Thousands	4 Months Ended	8 Months Ended	12 Months Ended
	Dec. 31, 2017	Sep. 07, 2017	Dec. 30, 2018	Dec. 31, 2017	Dec. 25, 2016	Dec. 27, 2015
Business Acquisition [Line Items]
Net Sales			$ 10,937,784	$ 10,773,662	$ 10,311,325
Net Income			$ 236,026	$ 664,776	$ 388,188
Net income attributable to Pilgrim's Pride Corporation per common share - diluted (in USD per share)			$ 0.95	$ 2.67	$ 1.53
Moy Park
Business Acquisition [Line Items]
Net Sales	$ 722,387	$ 1,273,932	$ 2,148,666		$ 1,947,441	$ 572,568
Net Income	$ 34,039	$ 23,486	$ 52,072		$ 40,388	$ 17,010