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Restructuring Expenses and Asset Impairments - Schedule of Pre-Tax Restructuring Expenses by Segment (Details) - USD ($)
$ in Millions
 3 Months Ended
Mar. 31, 2025
Mar. 31, 2024
Restructuring Cost and Reserve [Line Items]    
Restructuring Charges, Statement of Income or Comprehensive Income [Extensible Enumeration] Restructuring expenses and asset impairments Restructuring expenses and asset impairments
Severance Costs    
Restructuring Cost and Reserve [Line Items]    
Restructuring costs $ 17.5 $ 1.1
Operating segments | Severance Costs | FMT    
Restructuring Cost and Reserve [Line Items]    
Restructuring costs 4.2 0.5
Operating segments | Severance Costs | HST    
Restructuring Cost and Reserve [Line Items]    
Restructuring costs 11.4 0.5
Operating segments | Severance Costs | FSDP    
Restructuring Cost and Reserve [Line Items]    
Restructuring costs 1.6 0.0
Corporate/Other | Severance Costs    
Restructuring Cost and Reserve [Line Items]    
Restructuring costs $ 0.3 $ 0.1