Long-Term Debt - Repayments (Details) $ in Millions	3 Months Ended
Long-Term Debt - Repayments (Details) $ in Millions	Dec. 31, 2024 USD ($)	Dec. 31, 2023 USD ($)
Debt Disclosure [Abstract]
Debt Covenant, Leverage Ratio	4.25
Debt Covenant, Percentage of Revolving Credit Commitments	30.00%
Extinguishment of Debt [Line Items]
Gross Repayments of Long-term debt	$ 464.9	$ 70.9
Debt Covenant, Leverage Ratio	4.25
Debt Covenant, Percentage of Revolving Credit Commitments	30.00%
Loss on extinguishment of debt and refinancing fees, net
Extinguishment of Debt [Line Items]
Payment (Proceeds) for debt discounts and premiums	$ 4.4	(3.3)
Write off of Debt Issuance Costs and Deferred Financing Fees	1.4	0.2
Revolving Credit Facility
Extinguishment of Debt [Line Items]
Gross Repayments of Long-term debt		45.0
Revolving Credit Facility \| Loss on extinguishment of debt and refinancing fees, net
Extinguishment of Debt [Line Items]
Payment (Proceeds) for debt discounts and premiums		0.0
Write off of Debt Issuance Costs and Deferred Financing Fees		0.0
4.50% Senior Notes Maturing in September 2031 \| Senior Notes
Extinguishment of Debt [Line Items]
Gross Repayments of Long-term debt		25.9
4.50% Senior Notes Maturing in September 2031 \| Senior Notes \| Loss on extinguishment of debt and refinancing fees, net
Extinguishment of Debt [Line Items]
Payment (Proceeds) for debt discounts and premiums		(3.3)
Write off of Debt Issuance Costs and Deferred Financing Fees		$ 0.2
5.625% senior notes maturing January 2028 \| Senior Notes
Extinguishment of Debt [Line Items]
Gross Repayments of Long-term debt	464.9
5.625% senior notes maturing January 2028 \| Senior Notes \| Loss on extinguishment of debt and refinancing fees, net
Extinguishment of Debt [Line Items]
Payment (Proceeds) for debt discounts and premiums	4.4
Write off of Debt Issuance Costs and Deferred Financing Fees	$ 1.4