v3.26.1
Business Restructuring Charges - Schedule of Restructuring and Related Costs (Details) - USD ($)
$ in Millions
 3 Months Ended 6 Months Ended
Mar. 31, 2026
Mar. 31, 2025
Mar. 31, 2026
Mar. 31, 2025
Restructuring Cost and Reserve [Line Items]        
Restructuring charges $ 0.0   $ 0.0  
Patch Pump Restructuring Plan        
Restructuring Cost and Reserve [Line Items]        
Restructuring charges   $ 9.5   $ 36.8
Employee Termination | Patch Pump Restructuring Plan        
Restructuring Cost and Reserve [Line Items]        
Restructuring charges   10.1   21.7
Non-Employee Related | Patch Pump Restructuring Plan        
Restructuring Cost and Reserve [Line Items]        
Restructuring charges   (0.6)   15.1
Income Statement Location [Axis]: us-gaap:CostOfGoodsAndServicesSold | Patch Pump Restructuring Plan        
Restructuring Cost and Reserve [Line Items]        
Restructuring charges   0.1   6.4
Income Statement Location [Axis]: us-gaap:CostOfGoodsAndServicesSold | Employee Termination | Patch Pump Restructuring Plan        
Restructuring Cost and Reserve [Line Items]        
Restructuring charges   0.1   0.3
Income Statement Location [Axis]: us-gaap:CostOfGoodsAndServicesSold | Non-Employee Related | Patch Pump Restructuring Plan        
Restructuring Cost and Reserve [Line Items]        
Restructuring charges   0.0   6.1
Income Statement Location [Axis]: us-gaap:OtherOperatingIncomeExpenseNet | Patch Pump Restructuring Plan        
Restructuring Cost and Reserve [Line Items]        
Restructuring charges   4.7   18.9
Income Statement Location [Axis]: us-gaap:OtherOperatingIncomeExpenseNet | Employee Termination | Patch Pump Restructuring Plan        
Restructuring Cost and Reserve [Line Items]        
Restructuring charges   5.3   14.2
Income Statement Location [Axis]: us-gaap:OtherOperatingIncomeExpenseNet | Non-Employee Related | Patch Pump Restructuring Plan        
Restructuring Cost and Reserve [Line Items]        
Restructuring charges   (0.6)   4.7
Income Statement Location [Axis]: us-gaap:ResearchAndDevelopmentExpense | Patch Pump Restructuring Plan        
Restructuring Cost and Reserve [Line Items]        
Restructuring charges   4.3   10.9
Income Statement Location [Axis]: us-gaap:ResearchAndDevelopmentExpense | Employee Termination | Patch Pump Restructuring Plan        
Restructuring Cost and Reserve [Line Items]        
Restructuring charges   4.3   6.6
Income Statement Location [Axis]: us-gaap:ResearchAndDevelopmentExpense | Non-Employee Related | Patch Pump Restructuring Plan        
Restructuring Cost and Reserve [Line Items]        
Restructuring charges   0.0   4.3
Income Statement Location [Axis]: us-gaap:SellingGeneralAndAdministrativeExpense | Patch Pump Restructuring Plan        
Restructuring Cost and Reserve [Line Items]        
Restructuring charges   0.4   0.6
Income Statement Location [Axis]: us-gaap:SellingGeneralAndAdministrativeExpense | Employee Termination | Patch Pump Restructuring Plan        
Restructuring Cost and Reserve [Line Items]        
Restructuring charges   0.4   0.6
Income Statement Location [Axis]: us-gaap:SellingGeneralAndAdministrativeExpense | Non-Employee Related | Patch Pump Restructuring Plan        
Restructuring Cost and Reserve [Line Items]        
Restructuring charges   $ 0.0   $ 0.0