Third Party Arrangements (Details) - USD ($) $ in Millions	Mar. 31, 2026	Sep. 30, 2025
Related Party Transaction [Line Items]
Amounts due from Becton, Dickinson and Company	$ 0.0	$ 3.3
Amounts due to Becton, Dickinson and Company	0.0	$ 16.3
Becton, Dickinson and Company \| Location, Statement of Financial Position, Balance [Axis]: us-gaap:AccountsPayableTradeCurrent
Related Party Transaction [Line Items]
Amounts due to Becton, Dickinson and Company	20.4
Becton, Dickinson and Company \| Location, Statement of Financial Position, Balance [Axis]: us-gaap:AccountsReceivableNetCurrent
Related Party Transaction [Line Items]
Amounts due from Becton, Dickinson and Company	$ 6.1

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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+ Details