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Goodwill | 3 Months Ended
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Mar. 31, 2024
Goodwill. |
Goodwill | Note 4. Goodwill ​ The change in the carrying amount of goodwill is as follows: ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | ​ |  | ​ | ​ |  | (in millions)
Balance at January 1, 2024 | ​ | ​ | ​ | ​ | ​ | ​ | $ | 2,111.1
Acquisition | ​ | ​ | ​ | ​ | ​ | ​ | ​ | 16.5
Effect of foreign currency translation | ​ | ​ | ​ | ​ | ​ | ​ | ​ | (2.3)
Balance at March 31, 2024 | ​ | ​ | ​ | ​ | ​ | ​ | $ | 2,125.3
​ We had no accumulated impairment losses related to goodwill at March 31, 2024 and December 31, 2023. ​

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