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EQUITY (Tables)

12 Months Ended

Sep. 30, 2021

Equity [Abstract]

Schedule of Authorized and Issued Shares

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

			September 30,
			2021						2020
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						Net Unrealized Gain (Loss) in Pension and Other Post-Retirement Benefits												Accumulated Other Comprehensive Income (Loss)
Balance at September 30, 2018						$	(8.7)					$	8.3					$	—					$	(45.6)											$	(46.0)
Other comprehensive income (loss) before reclassifications						(11.2)						(20.1)						—						(15.0)												(46.3)
Amounts reclassified from accumulated other comprehensive net income (loss)						2.5						(2.0)						—						2.8												3.3
Income tax benefit (expense)						—						5.7						—						3.2												8.9
Net current period other comprehensive income (loss)						(8.7)						(16.4)						—						(9.0)												(34.1)
Adoption of new accounting pronouncements						—						—						—						(13.8)												(13.8)
Balance at September 30, 2019						(17.4)						(8.1)						—						(68.4)												(93.9)
Other comprehensive income (loss) before reclassifications						10.5						(19.7)						—						(12.9)												(22.1)
Amounts reclassified from accumulated other comprehensive net income (loss)						0.8						10.1						—						0.3												11.2
Income tax benefit (expense)						—						2.5						—						3.2												5.7
Net current period other comprehensive income (loss)						11.3						(7.1)						—						(9.4)												(5.2)
Balance at September 30, 2020						(6.2)						(15.1)						—						(77.8)												(99.1)
Other comprehensive income (loss) before reclassifications						4.5						26.8						(3.1)						6.9												35.1
Amounts reclassified from accumulated other comprehensive net income (loss)						—						7.3						—						0.4												7.7
Income tax benefit (expense)						—						(8.9)						0.8						(1.9)												(10.0)
Net current period other comprehensive income (loss)						4.5						25.2						(2.3)						5.4												32.8
Balance at September 30, 2021						$	1.7					$	10.2					$	(2.3)					$	72.5											$	(66.4)

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

Schedule of Share-Based Awards Granted

The following is a summary of the share-based awards granted during each of the periods indicated:

			Year Ended September 30,
			2021						2020						2019
Employees
Options			183,553						37,255						—
Restricted stock units			70,936						119,726						166,534
Performance units			1,903						37,570						131,644
Non-Employee Directors
Restricted and deferred stock units			9,173						18,948						32,101
Total share-based awards			265,565						213,499						330,279
Aggregate fair value at grant dates			$	30.2					$	21.5					$	25.5

Schedule of Share-Based Compensation

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

			Year Ended September 30,
			2021						2020						2019
Share-based compensation			$	40.6					$	57.9					$	38.4
Related tax benefit recognized			7.4						14.6						9.5

Schedule of Aggregate Stock Option Activity

Stock option activity was as follows:

			No. of   Options						Wtd. Avg. Exercise Price
Awards outstanding at September 30, 2020			619,225						$	57.90
Granted			183,553						236.53
Exercised			(234,587)						51.18
Awards outstanding at September 30, 2021			568,191						118.38
Exercisable			384,638						62.00

Summary of Certain Information Pertaining to Stock Option Awards Outstanding and Exercisable

The following summarizes certain information pertaining to stock option awards outstanding and exercisable at September 30, 2021:

						Awards Outstanding																		Awards Exercisable
Range of Exercise Price						No. of Options						Wtd. Avg. Remaining Life						Wtd. Avg. Exercise Price						No. of Options						Wtd. Avg. Remaining Life						Wtd. Avg. Exercise Price
$42.60 - $42.60						3,706						0.30						$	42.60					3,706						0.30						$	42.60
$59.62 - $64.55						380,932						3.85						62.18						380,932						3.85						62.18
$236.53 - $236.53						183,553						9.35						236.53						—						0.00						—
						568,191						5.60						118.38						384,638						3.82						62.00

Schedule of Intrinsic Value of Stock Option Awards Outstanding and Exercisable

The intrinsic values of the stock option awards outstanding and exercisable at September 30, 2021 were as follows: 

			2021
Outstanding			$	32.4
Exercisable			32.4

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 Shares						Wtd. Avg. Grant Date Fair Value per Share
Awards outstanding at September 30, 2020			500,237						$	94.53
Granted			80,109						230.95
Vested			(194,105)						92.70
Forfeited			(10,416)						96.54
Awards outstanding at September 30, 2021			375,825						124.50

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, 2020			666,128						$	92.85
Granted			1,903						236.53
Vested (a)			(26,729)						87.99
Forfeited			(68,745)						95.49
Awards outstanding at September 30, 2021			572,557						95.09

Schedule of Stock Options valuation assumptions

The weighted average assumptions for stock option awards granted in fiscal 2021 are as follows:

Expected market price volatility			31.9		%
Risk-free interest rate			0.7		%
Expected dividend yield			1.8		%
Expected life of stock options in years			6.06
Estimated weighted-average fair value per stock option			$	61.15

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