v3.26.3
Relationships with Related Parties - Schedule of related party transactions (Details) - USD ($)
$ in Millions
Sep. 30, 2026
Dec. 31, 2025
Related Party Transaction [Line Items]    
Other current liabilities $ 15.3 $ 15.8
Executive Committee    
Related Party Transaction [Line Items]    
Other current liabilities 2.7 2.2
Executive Committee | Compensation    
Related Party Transaction [Line Items]    
Other current liabilities 2.5 2.0
Executive Committee | Pension obligations    
Related Party Transaction [Line Items]    
Other current liabilities 0.1 0.1
Majority-Owned Subsidiary, Nonconsolidated | DBV Technologies Inc., DBV Technologies Australia Pty Ltd and DBV Pharma SAS    
Related Party Transaction [Line Items]    
Loans & Advances $ 0.9 $ 1.8