Fair Value Measurements - Available-for-sale securities (Details) - USD ($) $ in Thousands	Jun. 30, 2025	Dec. 31, 2024
Fair Value Measurements
Amortized Cost	$ 230,960	$ 30,993
Gross Unrealized Gains	21	33
Gross Unrealized Losses	(94)	(2)
Fair Value	230,887	31,024
Commercial paper
Fair Value Measurements
Amortized Cost	6,263	3,311
Gross Unrealized Gains	3	4
Gross Unrealized Losses	(1)
Fair Value	6,265	3,315
Corporate debt securities
Fair Value Measurements
Amortized Cost	49,767	8,589
Gross Unrealized Gains	16	12
Gross Unrealized Losses	(8)
Fair Value	49,775	8,601
Government securities
Fair Value Measurements
Amortized Cost	174,930	19,093
Gross Unrealized Gains	2	17
Gross Unrealized Losses	(85)	(2)
Fair Value	$ 174,847	$ 19,108

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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Amount, before tax, of unrealized loss 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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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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Amount of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), classified as current.

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