Financial Instruments and Fair Value Measurements (Details) - USD ($) $ in Millions	3 Months Ended	6 Months Ended
Jun. 30, 2025	Jun. 30, 2025	Dec. 31, 2024
Fair Value by Fair Value Hierarchy Level [Line Items]
Equity securities without readily determinable fair value	$ 47.7	$ 47.7	$ 68.1
Investment	100.1	100.1
Unfunded commitments	3.0	3.0
Capital contributions	0.0	18.7
Impairment charge related to investments	48.4	48.4
Money market deposit accounts
Fair Value by Fair Value Hierarchy Level [Line Items]
Money market deposit accounts	0.0	$ 0.0	41.5
Minimum
Fair Value by Fair Value Hierarchy Level [Line Items]
Investment fund, term		7 years
Investment fund, option to extend, term		2 years
Maximum
Fair Value by Fair Value Hierarchy Level [Line Items]
Investment fund, term		10 years
Investment fund, option to extend, term		3 years
Fair Value Measured at Net Asset Value Per Share
Fair Value by Fair Value Hierarchy Level [Line Items]
Equity securities without readily determinable fair value	$ 100.1	$ 100.1	$ 77.3

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