Acquisition - Schedule of Recognized Identified Assets Acquired and Liabilities Assumed (Details) - USD ($) $ in Millions	Jun. 30, 2023	Sep. 30, 2022	Dec. 01, 2020
Business Acquisition [Line Items]
Goodwill	$ 1,023.2	$ 1,003.1
Formulations Acquisition
Business Acquisition [Line Items]
Trade receivables			$ 1.3
Inventories			0.1
Other intangible assets, net			20.5
Operating lease assets			0.5
Accounts payable			(0.2)
Current operating lease liabilities			(0.2)
Other current liabilities			(0.2)
Operating lease liabilities			(0.3)
Total identifiable net assets			21.5
Goodwill			28.7
Net assets acquired			$ 50.2