Fair value, before effects of master netting arrangements, of a financial liability or contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset. Includes liabilities elected not to be offset. Excludes liabilities not subject to a master netting arrangement.

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DERIVATIVE FINANCIAL INSTRUMENTS (Schedule of Outstanding Derivative Instruments and Cash Collateral) (Details) - USD ($) $ in Thousands	9 Months Ended
	Sep. 26, 2021	Sep. 27, 2020	Dec. 27, 2020
Fair Value [Abstract]
Cash collateral posted with brokers	$ 54,111		$ 782
Corn
Derivatives Coverage:
Derivatives coverage (as a percentage)	13.80%	16.00%
Soybean Meal
Derivatives Coverage:
Derivatives coverage (as a percentage)	35.00%	24.00%
Commodity
Fair Value [Abstract]
Derivative assets, gross	$ 8,443		24,059
Derivative liabilities, gross	(29,744)		(6,531)
Foreign currency
Fair Value [Abstract]
Derivative assets, gross	1,814		2,204
Derivative liabilities, gross	(139)		(428)
Interest rate swap derivative liabilities
Fair Value [Abstract]
Derivative liabilities, gross	(345)		(640)
Sales contract derivative liabilities
Fair Value [Abstract]
Derivative liabilities, gross	$ 2,201		$ 0