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Equity and Other Investments and Fair Value Measurements - Equity and Other Investments in ImaginAb (Details) - ImaginAb - USD ($) $ in Millions	1 Months Ended		3 Months Ended	6 Months Ended
	May 31, 2025	Mar. 31, 2021	Jun. 30, 2024	Jun. 30, 2024	Jun. 30, 2025	Dec. 31, 2024
Equity Investment
Debt instrument maturity date		May 30, 2025
Consolidated Investees [Member]
Equity Investment
Equity investment ownership percentage					11.80%	11.80%
Common and preferred stock
Equity Investment
Number of shares purchased under the securities purchase agreement		8,825,301
Amount of securities purchase agreement		$ 7.6
Equity and long-term investments at fair value					$ 7.6	$ 7.6
ImaginAb Convertible Note
Equity Investment
Amount of securities purchase agreement		$ 4.8
Unrealized gain from fair value changes in equity investments			$ 0.1	$ 0.3
Convertible notes face value	$ 4.8
Settlement of convertible note	5.1
Accrued interest and commitment fees	$ 0.3
Equity and long-term investments at fair value						$ 5.0

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