INCOME TAXES (Narrative) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 27, 2020	Dec. 29, 2019	Dec. 30, 2018
Operating Loss Carryforwards [Line Items]
Effective tax rate	41.20%	26.10%	25.70%
Change in effective tax rate from change in reserve for unrecognized tax benefits	2.60%
Valuation allowance	$ 32,908	$ 33,522
Valuation allowance, U.S. foreign tax credits	11,800
Valuation allowance, state operating losses	1,000
Other comprehensive income, tax expense (benefit)	(6,907)	(723)	$ (1,627)
Unrecognized tax benefits	13,271	$ 12,776	$ 12,412
Amount of tax benefits that, if recognized, would reduce effective tax rate	1,100
Liability for interest and penalties	2,800
Increase in accrued interest and penalty amounts related to uncertain tax positions	500
Majority Shareholder | JBS USA Food Company | Capital contribution (distribution) under tax sharing agreement
Operating Loss Carryforwards [Line Items]
Net payable	600
State and Local Jurisdiction
Operating Loss Carryforwards [Line Items]
Net operating loss carry forwards	77,600
Tax credit carry forwards	3,300
Moy Park
Operating Loss Carryforwards [Line Items]
Valuation allowance, business combinations	12,400
Tulip Ltd. and Subsidiaries
Operating Loss Carryforwards [Line Items]
Valuation allowance, business combinations	7,700
Mexican Tax Authority | Foreign Tax Authority
Operating Loss Carryforwards [Line Items]
Net operating loss carry forwards	1,600
U.K. Tax Authority | Foreign Tax Authority
Operating Loss Carryforwards [Line Items]
Net operating loss carry forwards	$ 269,200