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Accumulated Other Comprehensive Income (Loss) - Changes in AOCI (Details) - USD ($)
$ in Millions
 12 Months Ended
Dec. 31, 2022
Dec. 31, 2021
Dec. 31, 2020
AOCI Attributable to Parent, Net of Tax [Roll Forward]      
Beginning balance $ 976.9 $ 742.0 $ 644.3
Total other comprehensive income (loss) (28.3) 6.8 2.7
Ending balance 1,108.7 976.9 742.0
Pension and Other Post-Employment Benefits      
AOCI Attributable to Parent, Net of Tax [Roll Forward]      
Beginning balance (12.3) (17.9)  
Other comprehensive income (loss) before reclassification (13.1) 4.8  
Amounts reclassified from accumulated other comprehensive loss 1.1 0.8  
Total other comprehensive income (loss) (12.0) 5.6  
Ending balance (24.3) (12.3) (17.9)
Foreign Currency Items      
AOCI Attributable to Parent, Net of Tax [Roll Forward]      
Beginning balance (87.9) (89.1)  
Other comprehensive income (loss) before reclassification (16.3) 1.2  
Amounts reclassified from accumulated other comprehensive loss 0.0 0.0  
Total other comprehensive income (loss) (16.3) 1.2  
Ending balance (104.2) (87.9) (89.1)
Accumulated Other Comprehensive Income (Loss)      
AOCI Attributable to Parent, Net of Tax [Roll Forward]      
Beginning balance (100.2) (107.0) (109.7)
Other comprehensive income (loss) before reclassification (29.4) 6.0  
Amounts reclassified from accumulated other comprehensive loss 1.1 0.8  
Total other comprehensive income (loss) (28.3) 6.8  
Ending balance $ (128.5) $ (100.2) $ (107.0)