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Other (Income) Expense, Net (Details) - USD ($)
$ in Millions
 3 Months Ended 12 Months Ended
Dec. 31, 2023
Sep. 30, 2023
Jun. 30, 2023
Mar. 31, 2023
Dec. 31, 2022
Sep. 30, 2022
Jun. 30, 2022
Mar. 31, 2022
Dec. 31, 2023
Dec. 31, 2022
Dec. 31, 2021
Other Nonoperating Income (Expense) [Abstract]                      
Change in realized and unrealized (gains) losses on investment securities, net                 $ 0.4 $ 7.1 $ (33.4)
Contingent consideration valuation                 1.3 0.0 24.3
Foreign currency (gains) losses                 (2.9) 2.5 3.8
Investment and note receivable impairment                 10.3 0.0 0.0
Early termination of contractual arrangement                 (20.0) 0.0 0.0
Other                 (4.7) (10.9) (7.2)
Other (income) expense, net $ (3.1) $ 1.7 $ (21.3) $ 7.1 $ (7.7) $ 1.2 $ 4.0 $ 1.2 (15.6) (1.3) (12.5)
Unrealized (gain) loss on investment securities                 0.0 $ 7.1 $ (1.4)
Fair value of investment securities 0.0               0.0    
Investments recorded at cost $ 26.0               26.0    
Other than Temporary Impairment                 3.7    
Note Receivable Impairment                 $ 6.6