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- Definition

Face (par) amount of debt instrument at time of issuance.

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- Definition

Effective interest rate for the funds borrowed under the debt agreement considering interest compounding and original issue discount or premium.

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- Definition

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

Amount of unrealized gain on investment in equity security measured at fair value with change in fair value recognized in net income (FV-NI).

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Amount of unrealized loss on investment in equity security measured at fair value with change in fair value recognized in net income (FV-NI).

+ References

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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 securities or other assets acquired, which qualify for treatment as an investing activity and are to be liquidated, if necessary, beyond the current operating cycle. Includes cash flows from securities classified as trading securities that were acquired for reasons other than sale in the long-term.

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Equity and Other Investments and Fair Value Measurements - Convertible Promissory Note in Gate Neuroscience (Details) - USD ($) $ in Thousands					3 Months Ended		6 Months Ended
	Feb. 13, 2024	Oct. 06, 2023	Feb. 02, 2023	Nov. 24, 2021	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023	Dec. 31, 2023
Equity Investment
Additional cash investment							$ 0	$ 35,689
Gate Neuroscience [Member]
Equity Investment
Number of common stock issued description				The number of common stock shares to be issued in a qualified event shall be equal to the amount due on the conversion date divided by the lesser of a capped conversion price (the “Capped Conversion Price”) and the qualified event price (the “Qualified Event Price”). The Capped Conversion Price is calculated as $50.0 million divided by the number of shares of common stock outstanding at such time on a fully diluted basis. The Qualified Event Price is the price per share determined by the qualified event. A qualified financing is a sale or series of sales of preferred stock where (i) at least 50 percent of counterparties are not existing shareholders, (ii) net proceeds to Gate are at least $35.0 million, and (iii) the stated or implied equity valuation of Gate is at least $80.0 million.
Additional cash investment	$ 5,000	$ 5,000	$ 5,000
Equity and long-term investments at fair value					$ 33,500		33,500		$ 28,000
Unrealized gain from fair value changes in equity investments					$ 300	$ 600
Unrealized loss from fair value changes in equity investments							$ 300
Convertible Promissory Note Purchase Agreement \| Gate Neuroscience [Member]
Equity Investment
Convertible notes Face Value		27,700	21,500	$ 15,000
Debt Instrument, Interest Rate, Effective Percentage				8.00%
Note Amendment Agreement \| Gate Neuroscience [Member]
Equity Investment
Convertible notes Face Value			$ 21,500
Second Note Amendment Agreement \| Gate Neuroscience [Member]
Equity Investment
Convertible notes Face Value		$ 27,700
Third Note Amendment Agreement \| Gate Neuroscience [Member]
Equity Investment
Convertible notes Face Value	$ 33,500