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Variable Interest Entity - Summary of Assets and Liabilities (Details) - USD ($)
$ in Millions
Sep. 30, 2024
Dec. 31, 2023
Sep. 30, 2023
Assets:      
Cash and cash equivalents $ 694.7 $ 432.2 $ 447.6
DomaniRx LLC [Member]      
Assets:      
Cash and cash equivalents 159.0 100.2  
Intangible assets 213.2 193.3  
Other assets 2.1 3.2  
Liabilities:      
Other liabilities $ 1.3 $ 3.9