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Other Finance Income (Expense) (Tables)
 3 Months Ended
Mar. 31, 2024
Other Income and Expenses [Abstract]  
Schedule of Other Finance Income (Expense)

Other finance income (expense) consisted of the following:

 

         
  

Three Months Ended March 31,

 
   2024   2023 
   (in millions) 
Pension interest cost  $(0.9)  $(0.8)
Expected return on pension plan assets   1.0    0.9 
Other finance income (Costs)  $0.1   $0.1