Marketable Securities - Amortized Cost and Fair Value (Details) - USD ($) $ in Thousands	Mar. 31, 2026	Dec. 31, 2025
Debt Securities, Available-for-Sale [Line Items]
Amortized Cost	$ 390,131	$ 140,240
Money market funds \| Level 1
Debt Securities, Available-for-Sale [Line Items]
Amortized Cost	17,298	12,204
Gross Unrealized Gains	0	0
Gross Unrealized Losses	0	0
Fair Value	17,298	12,204
U.S. treasury securities \| Level 1
Debt Securities, Available-for-Sale [Line Items]
Amortized Cost	334,695	78,268
Gross Unrealized Gains	1	46
Gross Unrealized Losses	(458)	0
Fair Value	334,238	78,314
U.S. government agency securities \| Level 2
Debt Securities, Available-for-Sale [Line Items]
Amortized Cost	38,138	49,767
Gross Unrealized Gains	0	15
Gross Unrealized Losses	(66)	(1)
Fair Value	$ 38,072	$ 49,781

Amount, before tax, of unrealized gain in accumulated other comprehensive income (AOCI) on 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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