COMBINED STATEMENTS OF EARNINGS AND COMPREHENSIVE INCOME (Condensed) (Unaudited) - USD ($) shares in Millions, $ in Millions	3 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
Income Statement [Abstract]
Net sales	$ 848.6	$ 736.8
Cost of products sold	510.7	435.5
Gross profit	337.9	301.3
Selling, general and administrative expense	124.1	122.1
Advertising and sales promotion expense	49.6	46.8
Research and development expense	7.6	8.9
Amortization of intangible assets	15.5	13.8
Interest expense	47.3	46.8
Loss on extinguishment of debt	5.7	4.2
Total Other items, net	0.8	0.0
Loss / (earnings) before income taxes	87.3	58.7
Income tax provision	20.2	12.9
Net earnings from continuing operations	67.1	45.8
Net earnings from discontinued operations, net of income tax expense of $7.5 for the quarter ended December 31, 2019	0.0	0.3
Net earnings	67.1	46.1
Mandatory preferred stock dividends	(4.0)	(4.0)
Net earnings attributable to common shareholders	$ 63.1	$ 42.1
Basic net (loss)/earnings per common share- continuing operations (in dollars per share)	$ 0.92	$ 0.60
Basic net loss per common share- discontinued operations (in dollars per share)	0	0.01
Basic net (loss)/earnings per common share (in dollars per share)	0.92	0.61
Diluted net (loss)/earnings per common share- continuing operations (in dollars per share)	0.91	0.60
Diluted net loss per common share- discontinued operations (in dollars per share)	0	0
Diluted net (loss)/earnings per common share (in dollars per share)	$ 0.91	$ 0.60
Weighted average shares of common stock - Basic (shares)	68.5	69.1
Weighted average shares of common stock - Diluted (shares)	73.5	70.2
Statements of Comprehensive Income:
Net earnings	$ 67.1	$ 46.1
Other comprehensive income/(loss), net of tax expense/(benefit)
Foreign currency translation adjustments	5.5	30.0
Pension activity, net of tax of $0.5 and $0.5, respectively.	(0.5)	(0.2)
Deferred loss on hedging activity, net of tax of ($0.9) and ($1.0), respectively.	(2.6)	(4.6)
Total comprehensive income	$ 69.5	$ 71.3