Commitment and Contingencies (Tables)

12 Months Ended

Sep. 30, 2024

Commitments and Contingencies Disclosure [Abstract]

Schedule of Environmental Loss Contingencies by Site

The following is a summary of the environment remediation liability as of September 30, 2024 and 2023:

(in millions)	2024		2023
Environmental remediation liability	$	4.5	$	5.4
Reported as:
Other current liabilities	0.8		1.5
Other long-term liabilities	3.7		3.9

Schedule of Expected Payments for Environmental Remediation

Based on current estimates, the expected payments for environmental remediation for the next five years and thereafter at September 30, 2024, are as follows:

(in millions)	Amount
2025	$	0.8
2026	2.4
2027	0.3
2028	0.2
2029	0.2
Thereafter	1.6
Total payments	5.5
Amount representing interest	(1.0)
Total environmental obligation	$	4.5