v3.25.4
Retirement and Postretirement Plans - Amounts Recognized in the Balance Sheet (Details) - USD ($)
$ in Millions
Dec. 31, 2025
Dec. 31, 2024
Defined Benefit Plans And Other Postretirement Benefit Plans Table Text Block [Line Items]    
Non-current assets $ 5.6 $ 5.5
Current liabilities (26.8) (66.5)
Non-current liabilities (100.2) (110.2)
Pension    
Defined Benefit Plans And Other Postretirement Benefit Plans Table Text Block [Line Items]    
Non-current assets 5.6 5.5
Current liabilities (25.6) (65.3)
Non-current liabilities (71.6) (80.7)
Total assets (liabilities) recognized (91.6) (140.5)
Pension | United States of America | Bargaining Plan    
Defined Benefit Plans And Other Postretirement Benefit Plans Table Text Block [Line Items]    
Current liabilities (25.0) (64.7)
Non-current liabilities (55.8) (65.2)
Total assets (liabilities) recognized (80.8) (129.9)
Pension | United States of America | Salaried Plan    
Defined Benefit Plans And Other Postretirement Benefit Plans Table Text Block [Line Items]    
Non-current assets   0.0
Total assets (liabilities) recognized   0.0
Pension | United States of America | Supplemental Plan    
Defined Benefit Plans And Other Postretirement Benefit Plans Table Text Block [Line Items]    
Current liabilities (0.6) (0.6)
Non-current liabilities (15.8) (15.5)
Total assets (liabilities) recognized (16.4) (16.1)
Pension | Foreign Plan [Member]    
Defined Benefit Plans And Other Postretirement Benefit Plans Table Text Block [Line Items]    
Non-current assets 5.6 5.5
Total assets (liabilities) recognized 5.6 5.5
Postretirement    
Defined Benefit Plans And Other Postretirement Benefit Plans Table Text Block [Line Items]    
Current liabilities (1.2) (1.2)
Non-current liabilities (28.6) (29.5)
Total assets (liabilities) recognized $ (29.8) $ (30.7)