Supplemental Balance Sheet Information (Details) - USD ($) $ in Millions	Sep. 30, 2023	Sep. 30, 2022
Receivables, net
Accounts receivable, trade	$ 147.3	$ 151.7
Accounts receivable, other	21.2	21.8
Total receivables, gross	168.5	173.5
Allowance for doubtful accounts	(0.3)	(0.2)
Receivables, net	168.2	173.3
Inventories
Inventory, raw materials, net	60.4	58.3
Inventory, work in process	0.1	0.1
Inventory, finished goods, net	133.8	141.4
Inventories	194.3	199.8
Accounts Payable
Accounts payable, trade	85.0	91.4
Accounts payable, other	4.0	2.4
Accounts payable	89.0	93.8
Other Current Liabilities
Estimated litigation liability, current	21.0	16.0
Accrued salaries, current	14.8	13.5
Accrued advertising and promotion expense	5.4	4.8
Other accrued liabilities, current	20.0	15.4
Other current liabilities	$ 61.2	$ 49.7