v3.25.4

Long-Term Debt (Details) - USD ($) $ in Millions	Dec. 31, 2025	Sep. 30, 2025
Debt Instrument
Long-term Debt, Including Current Maturities	$ 7,507.2	$ 7,452.2
Current portion of long-term debt	1.2	1.2
Unamortized Debt Issuance Costs, net	57.2	48.9
Plus: Unamortized premium and discount, net	9.1	19.6
Total Long-term Debt	7,457.9	7,421.7
Revolving Credit Facility
Debt Instrument
Long-term Debt	430.0	440.0
Leaseback Financial Liabilities
Debt Instrument
Long-term Debt	33.2	33.2
Municipal Bonds
Debt Instrument
Long-term Debt	3.0	3.0
2.50% convertible senior notes | Senior Notes
Debt Instrument
Long-term Debt	$ 575.0	575.0
Debt Instrument, Interest Rate, Stated Percentage	2.50%
4.50% Senior Notes Maturing in September 2031 | Senior Notes
Debt Instrument
Long-term Debt	$ 980.6	980.6
4.625% Senior Notes Maturing April 2030 | Senior Notes
Debt Instrument
Long-term Debt	1,385.4	1,385.4
5.50% Senior Notes Maturing in December 2029 | Senior Notes
Debt Instrument
Long-term Debt	0.0	1,235.0
6.25% Senior Secured Notes Maturing in February 2032 | Senior Notes
Debt Instrument
Long-term Debt	1,000.0	1,000.0
6.250% Senior Notes Maturing in October 2034 | Senior Notes
Debt Instrument
Long-term Debt	600.0	600.0
6.375% Senior Notes Maturing in March 2033 | Senior Notes
Debt Instrument
Long-term Debt	1,200.0	1,200.0
6.50% Senior Notes Maturing March 2036 | Senior Notes
Debt Instrument
Long-term Debt	$ 1,300.0	$ 0.0
Debt Instrument, Interest Rate, Stated Percentage	6.50%

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