Condensed Consolidated Statements of Earnings and Comprehensive Income - USD ($) $ in Millions	3 Months Ended
	Dec. 31, 2023	Dec. 31, 2022
Income Statement [Abstract]
Net sales	$ 488.9	$ 469.1
Cost of products sold	291.2	279.5
Gross profit	197.7	189.6
Selling, general and administrative expense	103.3	95.7
Advertising and sales promotion expense	48.2	45.9
Research and development expense	13.3	13.4
Restructuring charges	6.8	2.7
Operating income	26.1	31.9
Interest expense associated with debt	19.8	19.9
Other expense (income), net	0.3	(5.0)
Earnings before income taxes	6.0	17.0
Income tax provision	1.2	4.6
Net earnings	$ 4.8	$ 12.4
Basic net earnings per share	$ 0.10	$ 0.24
Diluted net earnings per share	$ 0.09	$ 0.24
Condensed Consolidated Statements of Comprehensive Income
Net earnings	$ 4.8	$ 12.4
Other comprehensive income (loss), net of tax
Foreign currency translation adjustments	27.0	48.0
Pension and postretirement activity, net of tax	(0.1)	(0.2)
Deferred gain (loss) on hedging activity, net of tax	(3.4)	(8.2)
Total other comprehensive income, net of tax	23.5	39.6
Total comprehensive income	$ 28.3	$ 52.0