Cash Equivalents and Investments - Cost and Fair Value (Details) - USD ($) $ in Thousands	Sep. 30, 2026	Dec. 31, 2025
CASH EQUIVALENTS AND INVESTMENTS
Amortized Cost	$ 339,795	$ 194,307
Gross Unrealized Gains	29	63
Gross Unrealized Losses	(217)
Fair Value	339,607	194,370
U.S. treasury securities
CASH EQUIVALENTS AND INVESTMENTS
Amortized Cost	318,574	133,839
Gross Unrealized Gains	29	63
Gross Unrealized Losses	(217)
Fair Value	318,386	133,902
Money market funds
CASH EQUIVALENTS AND INVESTMENTS
Amortized Cost	21,221	60,468
Fair Value	$ 21,221	$ 60,468

Amortized cost of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).

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+ Details

- Definition

Amount of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).

+ References

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+ Details