Segment Data (Schedule of Segment Sales and Profitability) (Details) - USD ($) $ in Millions	3 Months Ended				9 Months Ended
	Jun. 30, 2023		Jun. 30, 2022		Jun. 30, 2023		Jun. 30, 2022
Segment Reporting Information [Line Items]
Net sales	$ 650.0		$ 623.8		$ 1,717.5		$ 1,634.8
Segment profit	85.6		49.9		173.1		123.4
SKU rationalization charges					0.0		(22.5)
Acquisition and integration costs	1.0	[1]	0.9	[1]	5.1		8.0
Sun Care reformulation costs	0.6		0.6	[2]	1.7		4.1
Defined Benefit Plan, Accumulated Benefit Obligation, (Increase) Decrease for Settlement and Curtailment	0.0				7.2
VAT settlement costs			0.0	[3]	0.0	[3]	(3.4)
Amortization of intangibles	7.8		7.8		23.2		21.8
Interest and other expense, net	15.4		13.6		53.3		43.8
Restructuring Charges, Including Amounts in Selling, General and Administrative Expenses	(3.1)		(3.9)		(8.9)		(9.8)
Earnings before income taxes	70.2		36.3		112.6		79.6
Gain (Loss) Related to Litigation Settlement	(6.8)		(6.3)		(7.5)		(7.5)
Wet Shave
Segment Reporting Information [Line Items]
Net sales	324.1		326.3		908.0		917.4
Segment profit	32.1		37.5		102.6		116.6
Sun and Skin Care
Segment Reporting Information [Line Items]
Net sales	244.9		216.2		567.5		504.3
Segment profit	61.1		46.6		114.1		92.6
Feminine Care
Segment Reporting Information [Line Items]
Net sales	81.0		81.3		242.0		213.1
Segment profit	13.9		8.8		37.7		19.1
Total Segments
Segment Reporting Information [Line Items]
Segment profit	107.1		92.9		254.4		228.3
Corporate
Segment Reporting Information [Line Items]
General corporate and other expenses	$ 15.8		$ 14.8		$ 48.7		$ 42.8

[1] Includes pre-tax SG&A of $0.9 and $7.2 for the three and nine months ended June 30, 2022, respectively, for the Acquisition. Additionally, includes Cost of products sold of $0.8 related to the valuation of acquired inventory for the Acquisition for the nine months ended June 30, 2022. See Note 2 of the Notes to Condensed Consolidated Financial Statements.

[2] Includes pre-tax R&D of $0.6 and $1.7 for the three and nine months ended June 30, 2023, respectively, and pre-tax R&D of $0.6 for both the three and nine months ended June 30, 2022. Additional, includes pre-tax Cost of products sold of $3.5 for the nine months ended June 30, 2022 related to the reformulation, recall and destruction of certain Sun Care products.

[3] Includes pre-tax SG&A of $3.4 for the nine months ended June 30, 2022 related to the estimated settlement of a prior years’ value-added tax audit of the Company’s German subsidiary.(6)Includes pre-tax SG&A of $7.1 for both the three and nine months ended June 30, 2023 and $7.5 for both the three and nine months ended June 30, 2022 for the favorable resolution of legal matters. See Note 16 of the Notes to Condensed Consolidated Financial Statements. Also includes other costs of $0.3 and $0.8 for the three and nine months ended June 30, 2023.(7)Includes pre-tax COGS of $22.5 for the three and nine months ended June 30, 2022 for the write-off of certain Wet Ones SKUs and related contract termination charges. Wet one products are included within the Sun and Skin Care segment.