COMPREHENSIVE INCOME (LOSS) (Tables)

6 Months Ended

Mar. 31, 2026

Equity [Abstract]

Schedule of Accumulated Other Comprehensive Income (Loss)

The following table provides the rollforward of accumulated other comprehensive income (loss) for the six months ended March 31, 2026:

(in millions)	Foreign Currency Translation		Derivative Financial Instruments		Minimum Pension Liability Adjustment		Accumulated Other Comprehensive Income (Loss)
Balance as of September 30, 2025	$	(201.1)	$	8.1	$	(57.8)	$	(250.8)
Other comprehensive income (loss)	(4.6)		(0.9)		2.1		(3.4)
Balance as of March 31, 2026	$	(205.7)	$	7.2	$	(55.7)	$	(254.2)

The following table provides the rollforward of accumulated other comprehensive income (loss) for the six months ended March 31, 2025:

(in millions)	Foreign Currency Translation		Derivative Financial Instruments		Minimum Pension Liability Adjustment		Accumulated Other Comprehensive Income (Loss)
Balance as of September 30, 2024	$	(265.9)	$	(5.0)	$	(76.7)	$	(347.6)
Other comprehensive income (loss)	(32.9)		30.3		2.1		(0.5)
Balance as of March 31, 2025	$	(298.8)	$	25.3	$	(74.6)	$	(348.1)