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Investments and Fair Value Measurements - Schedule of Marketable Investments (Details) - USD ($) $ in Thousands	Jun. 30, 2025	Dec. 31, 2024
Debt Securities, Available-for-sale [Line Items]
Cost	$ 430,394	$ 643,067
Gross Unrealized Gains	231	590
Gross Unrealized Losses	(228)	(247)
Fair Value	430,397	643,410
Certificates of deposit
Debt Securities, Available-for-sale [Line Items]
Cost	816	802
Gross Unrealized Gains	0	0
Gross Unrealized Losses	0	0
Fair Value	816	802
U.S. treasury securities
Debt Securities, Available-for-sale [Line Items]
Cost	217,055	442,353
Gross Unrealized Gains	135	442
Gross Unrealized Losses	(53)	(223)
Fair Value	217,137	442,572
U.S. agency and government-sponsored securities
Debt Securities, Available-for-sale [Line Items]
Cost	184,880	146,762
Gross Unrealized Gains	26	16
Gross Unrealized Losses	(175)	(18)
Fair Value	184,731	146,760
Commercial paper
Debt Securities, Available-for-sale [Line Items]
Cost	5,701	9,600
Gross Unrealized Gains	2	8
Gross Unrealized Losses	0	0
Fair Value	5,703	9,608
Municipal bonds
Debt Securities, Available-for-sale [Line Items]
Cost	900
Gross Unrealized Gains	0
Gross Unrealized Losses	0
Fair Value	900
Corporate bonds
Debt Securities, Available-for-sale [Line Items]
Cost	21,042	43,550
Gross Unrealized Gains	68	124
Gross Unrealized Losses	0	(6)
Fair Value	$ 21,110	$ 43,668

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