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Equity and Other Investments and Fair Value Measurements - Convertible Promissory Note in Syndeo Biosciences (Details) - Syndeio Biosciences [Member] - USD ($) $ in Millions		3 Months Ended		6 Months Ended
	Mar. 03, 2025	Jun. 30, 2025	Jun. 30, 2024	Jun. 30, 2025	Jun. 30, 2024	Dec. 31, 2024
Convertible Promissory Note Purchase Agreement
Equity Investment
Debt Instrument, Interest Rate, Effective Percentage	8.00%
Debt instrument maturity date	Nov. 24, 2026
Convertible notes face value	$ 15.0					$ 51.5
Syndeo 2025 Convertible Note
Equity Investment
Equity and long-term investments at fair value		$ 15.6		$ 15.6
Unrealized gain from fair value changes in equity investments		0.4		0.6
Syndeo 2021 Convertible Note
Equity Investment
Equity and long-term investments at fair value		71.3		71.3		$ 50.9
Unrealized gain from fair value changes in equity investments		$ 1.4	$ 0.3	$ 20.5
Unrealized loss from fair value changes in equity investments					$ 0.3

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