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Restructuring and Impairment Expenses - Schedule of Analysis of Company's Restructuring Reserve (Details) - USD ($)
$ in Millions
 12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Restructuring Reserve [Roll Forward]    
Beginning balance $ 10.4 $ 3.2
Charges 0.0 17.6
Cash payments (9.7) (5.7)
Non-cash and other adjustments 0.0 (4.7)
Ending balance $ 0.7 $ 10.4
Restructuring Incurred Cost, Statement of Income or Comprehensive Income, Extensible Enumeration, Not Disclosed Flag false false
Severance Costs    
Restructuring Reserve [Roll Forward]    
Beginning balance $ 8.9 $ 0.3
Charges 0.0 12.1
Cash payments (8.9) (3.5)
Non-cash and other adjustments 0.0 0.0
Ending balance 0.0 8.9
Other Restructuring Expenses    
Restructuring Reserve [Roll Forward]    
Beginning balance 1.5 2.9
Charges 0.0 0.8
Cash payments (0.8) (2.2)
Non-cash and other adjustments 0.0 0.0
Ending balance 0.7 1.5
Non-cash Impairments    
Restructuring Reserve [Roll Forward]    
Beginning balance 0.0 0.0
Charges 0.0 4.7
Cash payments 0.0 0.0
Non-cash and other adjustments 0.0 (4.7)
Ending balance $ 0.0 $ 0.0