Long-Term Debt (Tables)

6 Months Ended

Mar. 31, 2024


	March 31, 2024		September 30, 2023
2.50% convertible senior notes maturing August 2027	$	575.0	$	575.0
4.50% senior notes maturing September 2031	998.6		1,049.7
4.625% senior notes maturing April 2030	1,385.4		1,385.4
5.50% senior notes maturing December 2029	1,235.0		1,235.0
5.625% senior notes maturing January 2028	939.9		939.9

5.75% senior notes maturing March 2027	—		459.3
6.25% senior secured notes maturing February 2032	1,000.0		—





Fourth Incremental Term Loan	—		400.0




Revolving Credit Facility	300.0		—


Municipal bond	4.2		5.3

	$	6,438.1	$	6,049.6
Less: Current portion of long-term debt	1.2		1.1
Debt issuance costs, net	47.8		42.0
Plus: Unamortized premium, net	25.5		32.5
Total long-term debt	$	6,414.6	$	6,039.0

Repayments of Long-term Debt

The following table presents the Company’s (i) principal repayments of debt, which, net of discounts, were included in the Condensed Consolidated Statements of Cash Flows, (ii) principal amounts of debt exchanged (refer to the “Third Incremental Term Loan” section above), which were not included in the Condensed Consolidated Statements of Cash Flows and (iii) the associated loss (gain) related to such repayments and exchanges included in “Loss (gain) on extinguishment of debt, net” in the Condensed Consolidated Statements of Operations.


									Loss (Gain) on Extinguishment of Debt, net
Debt Instrument		Principal Amount Repaid			Principal Amount Exchanged			Debt Discounts (Received) / Premiums Paid			Write-off of Debt Issuance Costs			Write-off of Unamortized Premiums

	Three Months Ended March 31, 2024
	4.50% senior notes		$	25.2		$	—		$	(2.7)		$	0.2		$	—
	5.75% senior notes		459.3			—			4.4			1.6			(4.6)

	Municipal bond		1.1			—			—			—			—

	Fourth Incremental Term Loan		400.0			—			—			1.4			—
	Revolving Credit Facility		300.0			—			—			—			—





	Total		$	1,185.6		$	—		$	1.7		$	3.2		$	(4.6)



	Three Months Ended March 31, 2023

	4.50% senior notes		$	49.5		$	—		$	(6.5)		$	0.4		$	—



	Municipal bond		1.1			—			—			—			—


	Total		$	50.6		$	—		$	(6.5)		$	0.4		$	—

	Six Months Ended March 31, 2024
	4.50% senior notes		$	51.1		$	—		$	(6.0)		$	0.4		$	—
	5.75% senior notes		459.3			—			4.4			1.6			(4.6)
	Municipal bond		1.1			—			—			—
	Fourth Incremental Term Loan		400.0			—			—			1.4			—
	Revolving Credit Facility		345.0			—			—			—			—


	Total		$	1,256.5		$	—		$	(1.6)		$	3.4		$	(4.6)

	Six Months Ended March 31, 2023

	4.50% senior notes		$	120.5		$	—		$	(16.9)		$	1.0		—

	Municipal bond		1.1			—			—			—			—
	Third Incremental Term Loan		30.1			99.9			—			1.1			—
	Total		$	151.7		$	99.9		$	(16.9)		$	2.1		$	—

- Definition

Tabular disclosure of long-debt instruments or arrangements, including identification, terms, features, collateral requirements and other information necessary to a fair presentation. These are debt arrangements that originally required repayment more than twelve months after issuance or greater than the normal operating cycle of the entity, if longer.

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+ Details