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	6 Months Ended
	Jun. 27, 2021	Jun. 28, 2020	Dec. 27, 2020
Fair values:
Cash collateral posted with brokers	$ 98,210		$ 782
Corn
Derivatives Coverage:
Derivatives coverage (as a percentage)	28.60%	16.00%
Soybean meal
Derivatives Coverage:
Derivatives coverage (as a percentage)	31.80%	24.00%
Commodity
Fair values:
Derivative assets, gross	$ 28,838		24,059
Derivative liabilities, gross	(86,806)		(6,531)
Foreign currency
Fair values:
Derivative assets, gross	2,957		2,204
Derivative liabilities, gross	(135)		(428)
Interest rate swap derivative liabilities
Fair values:
Derivative liabilities, gross	(478)		(640)
Sales contract derivative liabilities
Fair values:
Derivative liabilities, gross	$ 5,133		$ 0