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EQUITY (Tables)

12 Months Ended

Sep. 30, 2024

Equity [Abstract]

Schedule of Authorized and Issued Shares

Authorized and issued shares consisted of the following (in millions):

			September 30,
			2024						2023
Preferred shares, no par value:
Authorized			0.2 shares						0.2 shares
Issued			0.0 shares						0.0 shares
Common shares, no par value, $0.01 stated value per share:
Authorized			100.0 shares						100.0 shares
Issued			68.1 shares						68.1 shares

Schedule of Accumulated Other Comprehensive Loss

Changes in AOCL by component were as follows for the fiscal years ended September 30:

						Foreign Currency Translation Adjustments						Net Unrealized Gain (Loss) On Derivative Instruments						Net Unrealized Loss On Securities						Pension and Other Post- Retirement Benefit Adjustments												Accumulated Other Comprehensive Income (Loss)
Balance at September 30, 2021						$	(1.7)					$	10.2					$	(2.3)					$	(72.5)											$	(66.4)
Other comprehensive income (loss) before reclassifications						(27.2)						40.1						(102.0)						(7.3)												(96.4)
Amounts reclassified from accumulated other comprehensive net income (loss)						—						(9.1)						—						11.7												2.6
Income tax benefit (expense)						—						(7.9)						24.6						(1.1)												15.6
Net current period other comprehensive income (loss)						(27.2)						23.1						(77.4)						3.3												(78.2)
Balance at September 30, 2022						(28.9)						33.3						(79.7)						(69.3)												(144.6)
Other comprehensive income (loss) before reclassifications						7.0						5.6						(34.9)						(2.5)												(24.8)
Amounts reclassified from accumulated other comprehensive net income (loss)						—						(23.3)						101.3						(1.6)												76.4
Income tax benefit (expense)						—						4.5						(25.3)						1.0												(19.8)
Net current period other comprehensive income (loss)						7.0						(13.2)						41.1						(3.1)												31.8
Balance at September 30, 2023						(21.9)						20.1						(38.6)						(72.4)												(112.8)
Other comprehensive income (loss) before reclassifications						0.6						(10.6)						(40.4)						(2.8)												(53.2)
Amounts reclassified from accumulated other comprehensive net income (loss)						—						(9.7)						64.6						(2.7)												52.2
Income tax benefit (expense)						—						5.1						—						1.4												6.5
Net current period other comprehensive income (loss)						0.6						(15.2)						24.2						(4.1)												5.5
Balance at September 30, 2024						$	(21.3)					$	4.9					$	(14.4)					$	(76.5)											$	(107.3)

The sum of the components may not equal due to rounding.

Schedule of Share-Based Compensation

Total share-based compensation was as follows for each of the periods indicated:

			Year Ended September 30,
			2024						2023						2022
Share-based compensation			$	79.8					$	68.1					$	30.3
Related tax benefit recognized			14.8						15.6						4.9

Schedule of Aggregate Stock Option Activity

Stock option activity was as follows:

			No. of   Options						Wtd. Avg. Exercise Price						Wtd Avg Remaining Life						Aggregate Intrinsic Value
Awards outstanding at September 30, 2023			1,191,183						$	76.64					6.6 years
Granted			1,356,698						53.75
Exercised			(35,027)						58.52
Forfeited			(135,182)						55.69
Awards outstanding at September 30, 2024			2,377,672						65.03						7.5 years						$	71.4
Exercisable			493,832						108.97						2.6 years						8.9

Schedule of Share-Based Awards Granted

The weighted average assumptions used in the estimation of fair value for awards granted in fiscal 2024 are as follows:

Expected volatility			38.8		%
Risk-free interest rate			4.7		%
Expected dividend yield			4.1		%
Expected life			6.1 years

Details of the assumptions used in the estimation of fair value for these awards are as follows:

Expected volatility			36.6		%
Risk-free interest rate			4.5		%

Schedule of Restricted Share-Based Award Activity

Restricted share-based award activity (including restricted stock units and deferred stock units) was as follows:

			No. of Units						Wtd. Avg. Grant Date Fair Value per Unit
Awards outstanding at September 30, 2023			611,838						$	89.10
Granted			363,264						55.12
Vested			(77,826)						182.87
Forfeited			(130,892)						59.40
Awards outstanding at September 30, 2024			766,384						68.54

Schedule of Performance-Based Award Activity

Performance-based award activity was as follows (based on target award amounts):

			No. of Units						Wtd. Avg. Grant Date Fair Value per Unit
Awards outstanding at September 30, 2023			544,790						$	76.85
Granted			240,677						74.57
Vested (a)			(181,791)						59.88
Forfeited			(194,246)						65.89
Awards outstanding at September 30, 2024			409,430						86.61

(a)Vested at a weighted average of 100% of the target performance share units granted.

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