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Segment Information - Other Segment Items (Details) - USD ($)
$ in Millions
 3 Months Ended
Mar. 31, 2025
Mar. 31, 2024
Segment Reporting Information [Line Items]    
Gain on intellectual property matters $ 6.3 $ 1.1
Interest income 44.3 32.2
Other income (expense)—net 26.1 (2.9)
Income (loss) from equity method investment 10.6 (6.6)
Reportable Segment    
Segment Reporting Information [Line Items]    
Gain on intellectual property matters 6.3 1.1
Interest income 44.3 32.2
Interest expense (4.9) (5.1)
Other income (expense)—net 26.1 (2.9)
Income (loss) from equity method investment 10.6 (6.6)
Other segment items $ 82.4 $ 18.7