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v3.23.2

Goodwill (Tables) | 6 Months Ended
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Jun. 30, 2023
Goodwill. |
Schedule of changes in the carrying amount of goodwill | ​
​ | ​ | ​ | ​ | ​ | ​
​ | ​ | ​ |  | (in millions)
Balance at January 1, 2023 | ​ | ​ | ​ | $ | 2,105.9
Acquisition | ​ | ​ | ​ | ​ | 1.6
Effect of foreign currency translation | ​ | ​ | ​ | ​ | 2.3
Balance at June 30, 2023 | ​ | ​ | ​ | $ | 2,109.8

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