v3.26.3
Accumulated Other Comprehensive Loss - Changes in Accumulated Other Comprehensive Income Loss (Details) - USD ($)
$ in Millions
 3 Months Ended 9 Months Ended
Sep. 30, 2026
Sep. 30, 2025
Sep. 30, 2026
Sep. 30, 2025
AOCI Attributable to Parent, Net of Tax [Roll Forward]        
Beginning balance $ 1,659.1 $ 1,564.4 $ 1,603.3 $ 1,586.8
Other comprehensive loss before reclassifications     (3.6)  
Other comprehensive income (loss), net of tax 0.5 (8.7) (3.6) (4.0)
Ending balance 1,693.5 1,591.5 1,693.5 1,591.5
Total        
AOCI Attributable to Parent, Net of Tax [Roll Forward]        
Beginning balance (80.8) (69.7) (76.7) (74.4)
Ending balance (80.3) $ (78.4) (80.3) $ (78.4)
Foreign Currency Translation Adjustments        
AOCI Attributable to Parent, Net of Tax [Roll Forward]        
Beginning balance     (76.6)  
Other comprehensive loss before reclassifications     (3.6)  
Other comprehensive income (loss), net of tax     (3.6)  
Ending balance (80.2)   (80.2)  
Pension and Other Postretirement Obligations        
AOCI Attributable to Parent, Net of Tax [Roll Forward]        
Beginning balance     (0.1)  
Other comprehensive loss before reclassifications     0.0  
Other comprehensive income (loss), net of tax     0.0  
Ending balance $ (0.1)   $ (0.1)