Consolidated Balance Sheet Parentheticals - USD ($) $ in Millions	Sep. 30, 2025	Sep. 30, 2024
Statement of Financial Position [Abstract]
Accounts Receivable, Allowance for Credit Loss	$ 4.8	$ 4.6
Preferred shares, par value (in usd per share)	$ 0.01	$ 0.01
Preferred shares, authorized (in shares)	10,000,000.0	10,000,000.0
Preferred shares, outstanding (in shares)	0	0
Common shares, par value (in usd per share)	$ 0.01	$ 0.01
Common shares, authorized (in shares)	300,000,000	300,000,000
Common shares, issued (in shares)	65,251,989	65,251,989
Common shares, outstanding (in shares)	46,464,244	48,920,813
Treasury shares (in shares)	18,787,745	16,331,176
Trade receivables	$ 137.8	$ 109.4
Inventories	484.7	477.3
Other current assets	147.3	140.2
Assets, Current	995.5	936.0
Property, plant and equipment, net	369.3	349.1
Goodwill	1,291.1	1,338.6
Other intangible assets, net	921.3	948.5
Other assets	179.1	158.7
Total assets	3,756.3	3,730.9
Notes payable	29.5	24.5
Accounts payable	219.7	219.3
Other current liabilities	316.3	319.8
Total current liabilities	565.5	563.6
Long-term debt	1,383.3	1,275.0
Deferred income tax liabilities	118.8	133.2
Other liabilities	135.6	175.0
Total liabilities	2,203.2	2,146.8
Common shares	0.7	0.7
Additional paid-in capital	1,578.8	1,586.0
Retained earnings	1,086.7	1,090.1
Treasury Stock, Value	1,003.3	937.9
Accumulated other comprehensive loss	(109.8)	(154.8)
Stockholders' Equity Attributable to Parent	1,553.1	1,584.1
Liabilities and Equity	$ 3,756.3	$ 3,730.9