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Subsequent Event - Summary of fair values of the net assets at acquisition (Details) - USD ($) $ in Millions | Sep. 30, 2023 | Dec. 31, 2022
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Subsequent Event [Line Items] |  |
Goodwill | $ 2,431.5 | $ 2,426.8
Cash purchase price (net of cash acquired) | $ 546.8 |

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