Condensed Consolidated Statements of Earnings and Comprehensive Income - USD ($) $ in Millions	3 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Income Statement [Abstract]
Net sales	$ 463.3	$ 451.1
Cost of products sold	273.4	257.8
Gross profit	189.9	193.3
Selling, general and administrative expense	96.9	93.1
Advertising and sales promotion expense	46.2	41.2
Research and development expense	12.8	13.7
Restructuring charges	2.2	3.7
Operating income	31.8	41.6
Interest expense associated with debt	17.3	17.4
Other income, net	(1.7)	(1.0)
Earnings before income taxes	16.2	25.2
Income tax provision	5.0	7.5
Net earnings	$ 11.2	$ 17.7
Basic net earnings per share	$ 0.21	$ 0.33
Diluted net earnings per share	$ 0.20	$ 0.32
Condensed Consolidated Statements of Comprehensive Income
Net earnings	$ 11.2	$ 17.7
Other comprehensive (loss) income, net of tax
Foreign currency translation adjustments	(6.9)	33.7
Pension and postretirement activity, net of tax	0.0	(2.0)
Deferred gain (loss) on hedging activity, net of tax	0.4	(1.8)
Total other comprehensive (loss) income, net of tax	(6.5)	29.9
Total comprehensive income	$ 4.7	$ 47.6