Third Party Arrangements - Additional Information (Details) - USD ($) $ in Millions	Jan. 01, 2024	Apr. 01, 2022	Sep. 30, 2025	Sep. 30, 2024
Related Party Transaction [Line Items]
Amounts due from Becton, Dickinson and Company			$ 3.3	$ 53.8
Amounts due to Becton, Dickinson and Company			16.3	$ 42.5
Becton, Dickinson and Company
Related Party Transaction [Line Items]
Cannula supply agreement, minimum notice period to terminate agreement		36 months
Cannula supply agreement, minimum period from distribution date to terminate agreement		10 years
Becton, Dickinson and Company
Related Party Transaction [Line Items]
Logistics services agreement, administrative fee as a percentage of net revenue	1.25%	1.00%
Trade receivables factoring agreement service fee as a percentage of annual revenue		0.10%
Distribution agreement, maximum term for distributor appointed		2 years
Cannula supply agreement, minimum notice period to terminate agreement		36 months
Cannula supply agreement, minimum period from distribution date to terminate agreement		5 years
Cannula supply agreement, termination related to yearly forecasted purchase minimum, wind-down period		36 months
Becton, Dickinson and Company | Amounts due from Becton, Dickinson and Company
Related Party Transaction [Line Items]
Amounts due from Becton, Dickinson and Company			3.3
Becton, Dickinson and Company | Trade receivables, net
Related Party Transaction [Line Items]
Amounts due from Becton, Dickinson and Company			12.2
Becton, Dickinson and Company | Amounts due to Becton, Dickinson and Company
Related Party Transaction [Line Items]
Amounts due to Becton, Dickinson and Company			16.3
Becton, Dickinson and Company | Accounts payable
Related Party Transaction [Line Items]
Amounts due to Becton, Dickinson and Company			$ 4.1
Becton, Dickinson and Company | Minimum
Related Party Transaction [Line Items]
Distribution agreement, fee paid as a percentage of net revenue for each territory		1.50%
Becton, Dickinson and Company | Maximum
Related Party Transaction [Line Items]
Distribution agreement, fee paid as a percentage of net revenue for each territory		2.00%