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Goodwill (Tables)
 3 Months Ended
Mar. 31, 2024
Goodwill and Intangible Assets Disclosure [Abstract]  
Summary of Goodwill

The following table summarizes the goodwill movements in the year:

 

(in millions)

 

2024

 

Gross cost at January 1

 

$

399.3

 

Acquisitions

 

 

1.5

 

Exchange effect

 

 

(3.3

)

Gross cost at March 31

 

$

397.5