LONG-TERM DEBT (Details) - USD ($)		3 Months Ended	12 Months Ended
	Jun. 11, 2018	Sep. 29, 2018	Dec. 29, 2018	Aug. 24, 2018	Jun. 19, 2018	Dec. 30, 2017	Oct. 18, 2017	Oct. 17, 2017
Long-term debt:
Aggregate amount			$ 0			$ 250,200,000
Debt issuance costs			(8,068,000)			(6,112,000)
Total long-term debt			742,601,000			754,854,000
Less current installments of long-term debt			779,000			966,000
Long-term debt, excluding current installments			$ 741,822,000			$ 753,888,000
Effective interest rate (as a percent)			3.00%			2.00%
Minimum aggregate maturities of long-term debt
2016			$ 779,000
2017			778,000
2018			778,000
2019			582,000
2020			0
Senior Unsecured Notes 5.00% Due 2044
Long-term debt:
Aggregate amount			$ 450,000,000			$ 250,000,000
Redemption price of notes, stated as a percentage of principal amount (as a percent)			100.00%
Interest rate on notes (as a percent)			5.00%
Senior Unsecured Notes 5.25% Due 2054
Long-term debt:
Aggregate amount			$ 305,000,000			250,000,000
Debt Instrument, Unamortized Discount			$ 7,538
Redemption price of notes, stated as a percentage of principal amount (as a percent)			100.00%
Interest rate on notes (as a percent)			5.30%
Unamortized discount on 5.00% and 5.25% senior unsecured notes
Long-term debt:
Unamortized premium on senior unsecured notes			$ (21,468,000)			(4,312,000)
6.625% senior unsecured notes due in April 2020
Long-term debt:
Unamortized premium on senior unsecured notes			$ 0			(2,545,000)
Interest rate on notes (as a percent)			7.00%
Revolving credit agreement
Long-term debt:
Total long-term debt			$ 5,719,000			0
Maximum borrowing capacity							$ 600,000,000
Increase in borrowing capacity, maximum			200,000,000
Outstanding line of credit			14,600,000
Additional borrowing capacity			$ 579,700,000
Revolving credit agreement | Minimum
Long-term debt:
Basis points added to variable rate (as a percent)			0.00%
Revolving credit agreement | Maximum
Long-term debt:
Basis points added to variable rate (as a percent)			6250.00%
Revolving credit agreement | LIBOR
Long-term debt:
Variable interest rate basis			LIBOR (based on a 1, 2, 3 or 6 month interest period, as selected by the Company)
Basis points added to variable rate (as a percent)			10000.00%
Variable interest rate, base period			1 month
Revolving credit agreement | LIBOR | Minimum
Long-term debt:
Basis points added to variable rate (as a percent)			10000.00%
Revolving credit agreement | LIBOR | Maximum
Long-term debt:
Basis points added to variable rate (as a percent)			16250.00%
Revolving credit agreement | Prime lending rate
Long-term debt:
Variable interest rate basis			prime lending rate
Revolving credit agreement | Federal Funds rate
Long-term debt:
Variable interest rate basis			Federal Funds rate
Basis points added to variable rate (as a percent)			5000.00%
Revolving credit agreement, foreign currency
Long-term debt:
Maximum borrowing capacity							$ 400,000,000	$ 200,000,000
IDR Bonds
Long-term debt:
Total long-term debt			$ 8,500,000			8,500,000
Other notes
Long-term debt:
Total long-term debt			2,918,000			$ 4,033,000
Short Term Bank Lines Of Credit
Long-term debt:
Additional borrowing capacity			127,000,000
Balance			137,700,000
6.625% senior unsecured notes due in April 2020 | Senior Notes [Member]
Long-term debt:
Extinguishment of Debt, Amount	$ 250,200,000
Repayments of Notes Payable	266,000,000
Repayments Of Notes Payable, Accrued Interest	$ 3,600,000
Debt Instrument, Redemption Related Expenses		$ 14,820,000
Senior Unsecured Notes 5.00% Due 2044 | Senior Notes [Member]
Long-term debt:
Aggregate amount			450,000		$ 200,000,000
Debt Instrument, Unamortized Discount			14,000
Interest rate on notes (as a percent)		5.00%		5.00%
Revolving Credit Facility | Revolving credit agreement
Long-term debt:
Outstanding line of credit			$ 5,719