Discontinued Operations - Sales from Global Products (Details) - USD ($) $ in Millions	3 Months Ended								12 Months Ended
	Sep. 30, 2022	Jun. 30, 2022	Mar. 31, 2022	Dec. 31, 2021	Sep. 30, 2021	Jun. 30, 2021	Mar. 31, 2021	Dec. 31, 2020	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2020
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Net revenues	$ 335.4	$ 317.4	$ 296.0	$ 287.3	$ 295.2	$ 281.6	$ 244.9	$ 215.5	$ 1,236.1	$ 1,037.2	$ 727.0
Discontinued Operations, Held-for-sale | Global Products
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Net revenues									$ 218.1	$ 143.1	$ 102.9