DEBT (Details 1) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Debt Instrument [Line Items]
Receivables Financing Agreement (See Note 7)	$ 328,500	$ 300,000
Finance lease obligations	0	1,900
Deferred debt issuance costs	(16,600)	(20,100)
Unamortized bond original issue discount	200	200
Total debt	2,670,100	2,580,700
Amounts due within one year	78,800	9,700
Total long-term debt	2,591,300	2,571,000
Proceeds from Issuance of Long-term Debt	707,700	415,000
Repayments	(621,800)	(616,100)	$ (1,643,100)
Long-term debt (repayments) borrowings, net	85,900	(201,100)
Loss on debt extinguishment	0	0	152,200
Debt early redemption premiums	0	0	137,700
Write-off of Deferred Debt Issuance Costs and Fair Value Swap Losses			$ 14,500
Long-Term Debt	2,686,900
$350.0 million Senior Term Loan
Debt Instrument [Line Items]
Notes payable	$ 341,300	$ 350,000
Interest rate	6.955%	5.923%
$1,550.0 million Senior Credit Facility
Debt Instrument [Line Items]
Notes payable	$ 68,000	$ 0
Interest rate	6.955%	0.00%
Variable-Rate Recovery Zone Bonds
Debt Instrument [Line Items]
Notes payable	$ 103,000	$ 103,000
Interest rate	6.42%	5.198%
Variable-Rate Go Zone Bonds
Debt Instrument [Line Items]
Notes payable	$ 50,000	$ 50,000
Interest rate	6.42%	5.198%
Industrial Development and Environmental Improvement Obligations
Debt Instrument [Line Items]
Notes payable	$ 2,900	$ 2,900
Interest rate	6.45%	4.55%
2025 Notes 9.50%
Debt Instrument [Line Items]
Notes payable	$ 108,600	$ 108,600
Interest rate	9.50%	9.50%
2029 Notes
Debt Instrument [Line Items]
Notes payable	$ 669,300	$ 669,300
Interest rate	5.625%	5.625%
2027 Notes
Debt Instrument [Line Items]
Notes payable	$ 500,000	$ 500,000
Interest rate	5.125%	5.125%
2030 Notes
Debt Instrument [Line Items]
Notes payable	$ 515,300	$ 515,300
Interest rate	5.00%	5.00%
$1,200 million Senior Revolving Credit Facility
Debt Instrument [Line Items]
Proceeds from Issuance of Long-term Debt	$ 375,000	$ 320,000
Repayments	(307,000)	(320,000)
Senior Term Loans
Debt Instrument [Line Items]
Proceeds from Issuance of Long-term Debt	332,700	95,000
Repayments	(8,700)	0
2022 Notes
Debt Instrument [Line Items]
Repayments	0	(200,000)
Receivables Financing Agreement
Debt Instrument [Line Items]
Receivables Financing Agreement (See Note 7)	328,500	300,000
Repayments	(304,200)	(95,000)
Finance Leases
Debt Instrument [Line Items]
Repayments	$ (1,900)	$ (1,100)