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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 |  |  |  |  |

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