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Restructuring and Asset Impairments - Summary of restructuring costs by segment (Details) - USD ($)
$ in Millions
 3 Months Ended
Mar. 31, 2025
Mar. 31, 2024
Restructuring charges    
Restructuring expenses $ 10.2 $ 7.2
Corporate    
Restructuring charges    
Restructuring expenses $ 0.0 $ 0.5
Restructuring Incurred Cost Statement Of Income Or Comprehensive Income Extensible Enumeration Not Disclosed Flag Other Nonrecurring Expense Other Nonrecurring Expense
Cost of revenues    
Restructuring charges    
Restructuring expenses $ 2.6 $ 3.7
Restructuring Incurred Cost Statement Of Income Or Comprehensive Income Extensible Enumeration Not Disclosed Flag Cost of Revenue Cost of Revenue
Cost of revenues | BSI BioSpin    
Restructuring charges    
Restructuring expenses $ 1.0 $ 0.0
Cost of revenues | BSI CALID    
Restructuring charges    
Restructuring expenses 1.2 0.0
Cost of revenues | BSI Nano    
Restructuring charges    
Restructuring expenses 0.4 3.7
Other charges, net    
Restructuring charges    
Restructuring expenses $ 7.6 $ 3.5
Restructuring Incurred Cost Statement Of Income Or Comprehensive Income Extensible Enumeration Not Disclosed Flag Other Nonrecurring Expense Other Nonrecurring Expense
Other charges, net | BSI BioSpin    
Restructuring charges    
Restructuring expenses $ 5.8 $ 0.0
Other charges, net | BSI CALID    
Restructuring charges    
Restructuring expenses 1.0 0.0
Other charges, net | BSI Nano    
Restructuring charges    
Restructuring expenses $ 0.8 $ 3.0