DEBT (Tables)

12 Months Ended

Dec. 31, 2023

Debt Instruments [Abstract]

Schedule of long-term debt

	December 31,
	2023		2022
Financing Obligations	($ in millions)
Variable-rate Term Loan Facility, due 2027 (6.955% and 5.923% at December 31, 2023 and 2022, respectively)	$	341.3	$	350.0
Variable-rate Senior Revolving Credit Facility, due 2027 (6.955% at December 31, 2023)	68.0		—
Variable-rate Recovery Zone bonds, due 2024-2035 (6.420% and 5.198% at December 31, 2023 and 2022, respectively)	103.0		103.0
Variable-rate Go Zone bonds, due 2024 (6.420% and 5.198% at December 31, 2023 and 2022, respectively)	50.0		50.0
Variable-rate industrial development and environmental improvement obligations, due 2025 (6.45% and 4.55% at December 31, 2023 and 2022, respectively)	2.9		2.9
9.50% senior notes, due 2025	108.6		108.6
5.625% senior notes, due 2029	669.3		669.3
5.125% senior notes, due 2027	500.0		500.0
5.00% senior notes, due 2030	515.3		515.3
Receivables Financing Agreement (See Note 7)	328.5		300.0
Finance lease obligations	—		1.9
Other:
Deferred debt issuance costs	(16.6)		(20.1)
Unamortized bond original issue discount	(0.2)		(0.2)
Total debt	2,670.1		2,580.7
Amounts due within one year	78.8		9.7
Total long-term debt	$	2,591.3	$	2,571.0

Schedule of Debt

During 2023 and 2022, activity of our outstanding debt included:

	Long-term Debt Borrowings (Repayments) for the Year Ended December 31,
	2023		2022
Debt Instruments	($ in millions)
Borrowings
Senior Revolving Credit Facility	$	375.0	$	320.0
Receivables Financing Agreement	332.7		95.0
Total borrowings	707.7		415.0
Repayments
5.50% senior notes, due 2022 (2022 Notes)	—		(200.0)
Senior Revolving Credit Facility	(307.0)		(320.0)
Term Loan Facility	(8.7)		—
Receivables Financing Agreement	(304.2)		(95.0)
Finance leases	(1.9)		(1.1)
Total repayments	(621.8)		(616.1)
Long-term debt borrowings (repayments), net	$	85.9	$	(201.1)

We incurred a loss on debt extinguishment of $152.2 million during the year ended December 31, 2021, which is included as interest expense in the consolidated statements of operations. The loss includes the payment of bond redemption premiums of $137.7 million for the year ended December 31, 2021, as well as the write-off of deferred debt issuance costs, write-off of bond original issue discount and recognition of deferred fair value interest rate swap losses of $14.5 million for the year ended December 31, 2021, associated with the optional prepayment of existing debt. The cash payments related to the early redemption premiums for the debt extinguishments are classified as cash outflows from financing activities on the consolidated statements of cash flows for year ended December 31, 2021.