COMMITMENTS AND CONTINGENCIES - Schedule of Expected Payments for Environmental Remediation (Details) - USD ($) $ in Millions	Sep. 30, 2022	Sep. 30, 2021
Accrual for Environmental Loss Contingencies, Fiscal Year Maturity [Abstract]
2023	$ 5.0
2024	2.6
2025	0.4
2026	0.3
2027	0.2
Thereafter	1.8
Total payments	10.3
Amount representing interest	(1.5)
Total environmental obligation	$ 8.8	$ 11.3

Total costs accrued as of the balance sheet date for environmental loss contingencies.

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Undiscounted amount of the accrual for environmental loss contingencies.

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Undiscounted amount of accrual for environmental loss contingency to be paid in second fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).

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