DEBT - Schedule of Long-term Debt and Other Borrowing Arrangements (Details) - USD ($)			6 Months Ended
	Dec. 14, 2018	Jun. 02, 2018	Jun. 27, 2021	Apr. 08, 2021	Dec. 27, 2020	Sep. 29, 2017
Debt Instrument [Line Items]
Finance lease obligations			$ 1,456,000		$ 1,664,000
Long-term debt			2,315,177,000		2,298,544,000
Less: Current maturities of long-term debt			(25,453,000)		(25,455,000)
Long-term debt, less current maturities			2,289,724,000		2,273,089,000
Less: Capitalized financing costs			(19,426,000)		(17,543,000)
Long-term debt, less current maturities, net of capitalized financing costs			2,270,298,000		2,255,546,000
Term note payable at 1.34% | Credit facility
Debt Instrument [Line Items]
Long-term debt			437,500,000		450,000,000
Revolving note payable at 3.50% | Credit facility
Debt Instrument [Line Items]
Long-term debt			40,500,000		0
Moy Park Bank of Ireland Revolving Facility with notes payable at LIBOR or EURIBOR plus 1.25% to 2.00% | Credit facility
Debt Instrument [Line Items]
Long-term debt			0		0
Mexico Credit Facility (defined below) with notes payable at TIIE plus 1.50% | Credit facility
Debt Instrument [Line Items]
Long-term debt			$ 0		0
Senior notes | Senior notes payable, net of discount at 4.25%
Debt Instrument [Line Items]
Stated interest rate			4.25%	4.25%
Long-term debt			$ 990,190,000		0
Senior notes | Senior notes payable, net of discount at 5.875%
Debt Instrument [Line Items]
Stated interest rate			5.875%			5.875%
Long-term debt			$ 845,508,000		845,149,000
Senior notes | Senior notes payable, net of premium and discount at 5.75%
Debt Instrument [Line Items]
Stated interest rate			5.75%
Long-term debt			$ 0		1,001,693,000
Credit facility | Term note payable at 1.34% | Credit facility
Debt Instrument [Line Items]
Stated interest rate			1.34%
Long-term debt			$ 437,500,000
Credit facility | Revolving note payable at 3.50% | Credit facility
Debt Instrument [Line Items]
Stated interest rate			3.50%
Credit facility | Moy Park Bank of Ireland Revolving Facility with notes payable at LIBOR or EURIBOR plus 1.25% to 2.00% | Credit facility
Debt Instrument [Line Items]
Long-term debt			$ 0
Credit facility | Moy Park Bank of Ireland Revolving Facility with notes payable at LIBOR or EURIBOR plus 1.25% to 2.00% | Credit facility | LIBOR Rate
Debt Instrument [Line Items]
Basis spread on variable interest rate		1.25%	1.25%
Credit facility | Moy Park Bank of Ireland Revolving Facility with notes payable at LIBOR or EURIBOR plus 1.25% to 2.00% | Credit facility | EURIBOR Rate
Debt Instrument [Line Items]
Basis spread on variable interest rate		2.00%	2.00%
Credit facility | Mexico Credit Facility (defined below) with notes payable at TIIE plus 1.50% | Credit facility
Debt Instrument [Line Items]
Long-term debt			$ 0
Credit facility | Mexico Credit Facility (defined below) with notes payable at TIIE plus 1.50% | Credit facility | TIIE Rate
Debt Instrument [Line Items]
Basis spread on variable interest rate	1.50%		1.50%
Secured loans with payables at weighted average of 3.34%
Debt Instrument [Line Items]
Weighted average interest rate			3.34%
Long-term debt			$ 23,000		$ 38,000