Derivative Financial Instruments and Hedging Activities (Tables)

12 Months Ended

Dec. 31, 2022

Derivative Instruments and Hedging Activities Disclosure [Abstract]

Schedule of Fair Values of All Open Derivative Instruments

The fair values of all open derivative instruments were as follows (in millions):

	December 31, 2022
	Other Current Assets		Other Long Term Assets		Other Current Liabilities		Other Long Term Liabilities
Cash flow hedges:
Foreign exchange contracts	$	11.1	$	—	$	0.3	$	—
Not designated as hedging instruments:
Foreign exchange contracts		1.5		0.1		1.3		—
	$	12.6	$	0.1	$	1.6	$	—

	December 31, 2021
	Other Current Assets		Other Long Term Assets		Other Current Liabilities		Other Long Term Liabilities
Cash flow hedges:
Foreign exchange contracts	$	0.2	$	2.7	$	—	$	—
Not designated as hedging instruments:
Foreign exchange contracts		0.3		0.4		0.6		0.3
	$	0.5	$	3.1	$	0.6	$	0.3

	September 30, 2021
	Other Current Assets		Other Long Term Assets		Other Current Liabilities		Other Long Term Liabilities
Cash flow hedges:
Foreign exchange contracts	$	0.5	$	1.8	$	—	$	—
Not designated as hedging instruments:
Foreign exchange contracts		0.2		0.1		1.5		0.2
	$	0.7	$	1.9	$	1.5	$	0.2

Schedule of Pre-tax Effects of Derivative Instruments

The pre-tax effects of derivative instruments consisted of the following (in millions):

	Classification of	Year Ended December 31,		Three Months Ended December 31, (transition period)			Year Ended September 30,
	Gains (Losses)	2022		2021			2021			2020
Cash flow hedges:
Foreign exchange contracts	Cost of sales	$	1.4	$	0.3		$	(0.7	)	$	0.6
Not designated as hedging instruments:
Foreign exchange contracts	Miscellaneous, net		0.9		(0.1	)		0.2			1.7
		$	2.3	$	0.2		$	(0.5	)	$	2.3