The number of the Company's Board members currently serving on the Investee's Board.

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- Definition

The amount the Company agreed to pay for common stock and warrants upon satisfaction of certain closing conditions under the terms of the securities purchase agreement.

+ References

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The total number of shares to be purchased under the terms of a securities purchase agreement.

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No definition available.

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- Definition

The percentage of ownership of common stock or equity participation in the investee accounted for under the equity method of accounting.

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Amount of investment in equity security measured at fair value with change in fair value recognized in net income (FV-NI), classified as current.

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

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- Definition

The cash outflow for cost incurred directly with the issuance of an equity security.

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Equity and Long-term Investments and Fair Value Measurements - Equity Investment in ImaginAb (Details) - ImaginAb $ in Millions	Sep. 14, 2023 USD ($) shares	Mar. 14, 2023 USD ($) shares	Mar. 18, 2021 USD ($) shares	Sep. 30, 2023 USD ($) Director	Dec. 31, 2022 USD ($)
Equity Investment
Transaction costs to acquire equity securities			$ 0.4
Number of Investee's Board members currently representing the Company \| Director				1
Equity and long-term investments at fair value				$ 7.6	$ 6.4
Consolidated Investees [Member]
Equity Investment
Equity investment ownership percentage				11.80%	12.70%
Series C preferred stock
Equity Investment
Number of shares to be purchased under the securities purchase agreement \| shares			4,051,724
Amount of securities purchase agreement			$ 4.7
Series C-2 preferred stock
Equity Investment
Number of shares to be purchased under the securities purchase agreement \| shares	405,852	270,568
Amount of securities purchase agreement	$ 0.6	$ 0.6
One of ImaginAb's Common Stockholders \| Common stock
Equity Investment
Number of shares to be purchased under the securities purchase agreement \| shares			4,097,157
Amount of securities purchase agreement			$ 1.3