Condensed Consolidated Statements of Earnings and Comprehensive Income - USD ($) shares in Millions, $ in Millions	3 Months Ended
	Dec. 31, 2025	Dec. 31, 2024
Income Statement [Abstract]
Net sales	$ 422.8	$ 415.1
Cost of Product and Service Sold	261.8	242.6
Gross profit	161.0	172.5
Selling, general and administrative expense	102.4	99.6
Advertising and sales promotion expense	45.6	46.1
Research and development expense	13.8	13.4
Restructuring charges	18.1	4.1
Operating (loss) income	(18.9)	9.3
Interest expense associated with debt	19.3	18.8
Other (income) expense, net	(1.3)	3.2
Loss from continuing operations before income taxes	(36.9)	(12.7)
Income tax benefit on continuing operations	(7.7)	(2.6)
Net loss from continuing operations	(65.7)	(2.1)
(Loss) earnings from discontinued operations, net of tax	$ (36.5)	$ 8.0
Income (Loss) from Continuing Operations, Per Basic Share	$ (0.63)	$ (0.21)
Discontinued Operation, Income (Loss) from Discontinued Operation, Net of Tax, Per Basic Share	$ (0.78)	$ 0.17
Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Adjustment, Net of Tax	$ 3.2	$ (48.3)
Other Comprehensive (Income) Loss, Defined Benefit Plan, after Reclassification Adjustment, after Tax	0.6	0.4
Deferred gain (loss) on hedging activity, net of tax	$ 1.5	$ 5.0
Earnings Per Share, Basic, Total	$ (1.41)	$ (0.04)
Income (Loss) from Continuing Operations, Per Diluted Share	(0.63)	(0.21)
Discontinued Operation, Income (Loss) from Discontinued Operation, Net of Tax, Per Diluted Share	(0.78)	0.17
Diluted loss per share	$ (1.41)	$ (0.04)
Condensed Consolidated Statements of Comprehensive Income
Net loss	$ (65.7)	$ (2.1)
Total other comprehensive income (loss), net of tax
Total other comprehensive income (loss), net of tax	5.3	(42.9)
Total comprehensive loss	$ (60.4)	$ (45.0)
Basic weighted-average shares outstanding (in shares)	46.6	48.7
Weighted Average Number of Shares Outstanding, Diluted	46.6	48.7
Income (Loss) from Continuing Operations, Net of Tax, Attributable to Parent	$ (29.2)	$ (10.1)