Condensed Consolidated Statements of Earnings and Comprehensive Income - USD ($) shares in Millions, $ in Millions	3 Months Ended		9 Months Ended
	Jun. 30, 2025	Jun. 30, 2024	Jun. 30, 2025	Jun. 30, 2024
Income Statement [Abstract]
Net sales	$ 627.2	$ 647.8	$ 1,686.3	$ 1,736.1
Cost of products sold	358.7	360.7	970.0	993.2
Gross profit	268.5	287.1	716.3	742.9
Selling, general and administrative expense	104.4	110.1	313.0	320.9
Advertising and sales promotion expense	80.4	76.6	196.2	187.9
Research and development expense	14.0	14.6	41.8	42.1
Restructuring charges	16.0	3.1	32.4	13.1
Operating income	53.7	82.7	132.9	178.9
Interest expense associated with debt	19.4	18.8	58.4	59.0
Other (income) expense, net	(2.9)	1.4	(2.3)	4.4
Earnings before income taxes	37.2	62.5	76.8	115.5
Income tax provision	8.1	13.5	20.8	25.7
Net earnings	29.1	49.0	56.0	89.8
Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Adjustment, Net of Tax	53.5	(13.1)	28.2	(2.1)
Other Comprehensive (Income) Loss, Defined Benefit Plan, after Reclassification Adjustment, after Tax	0.5	(0.5)	1.2	(1.1)
Deferred gain (loss) on hedging activity, net of tax	$ (3.7)	$ 0.6	$ (1.5)	$ (0.1)
Basic net earnings per share	$ 0.62	$ 0.99	$ 1.17	$ 1.80
Diluted net earnings per share	$ 0.62	$ 0.98	$ 1.17	$ 1.79
Condensed Consolidated Statements of Comprehensive Income
Net earnings	$ 29.1	$ 49.0	$ 56.0	$ 89.8
Other comprehensive (loss) income, net of tax
Total other comprehensive (loss) income, net of tax	50.3	(13.0)	27.9	(3.3)
Total comprehensive income	$ 79.4	$ 36.0	$ 83.9	$ 86.5
Basic weighted-average shares outstanding (in shares)	46.8	49.5	47.8	49.8
Weighted Average Number of Shares Outstanding, Diluted	47.0	50.1	48.0	50.3