Cash Equivalents and Marketable Securities - Schedule of Estimated Fair Value of Cash Equivalents and Marketable Securities and Gross Unrealized Gains and Losses (Details) - USD ($) $ in Thousands	Jun. 30, 2026	Dec. 31, 2025
Debt Securities, Available-for-Sale [Line Items]
Cash equivalents, amortized cost	$ 160,262	$ 83,991
Cash equivalents, gross unrealized gains	0	0
Cash equivalents, gross unrealized losses	0	0
Cash equivalents, estimated fair value	160,262	83,991
Marketable securities, amortized cost	985,735	669,942
Marketable securities, gross unrealized gains	90	986
Marketable securities, gross unrealized losses	(2,486)	(116)
Marketable securities, estimated fair value	983,339	670,812
Commercial paper
Debt Securities, Available-for-Sale [Line Items]
Marketable securities, amortized cost	405,173	184,423
Marketable securities, gross unrealized gains	0	25
Marketable securities, gross unrealized losses	(527)	(80)
Marketable securities, estimated fair value	404,646	184,368
Corporate bonds
Debt Securities, Available-for-Sale [Line Items]
Marketable securities, amortized cost	146,423	100,753
Marketable securities, gross unrealized gains	1	60
Marketable securities, gross unrealized losses	(283)	(23)
Marketable securities, estimated fair value	146,141	100,790
U.S. government treasury securities
Debt Securities, Available-for-Sale [Line Items]
Marketable securities, amortized cost	257,111	265,316
Marketable securities, gross unrealized gains	87	748
Marketable securities, gross unrealized losses	(741)	0
Marketable securities, estimated fair value	256,457	266,064
U.S. government agency securities
Debt Securities, Available-for-Sale [Line Items]
Marketable securities, amortized cost	177,028	119,450
Marketable securities, gross unrealized gains	2	153
Marketable securities, gross unrealized losses	(935)	(13)
Marketable securities, estimated fair value	176,095	119,590
Money market funds
Debt Securities, Available-for-Sale [Line Items]
Cash equivalents, amortized cost	139,330	74,004
Cash equivalents, gross unrealized gains	0	0
Cash equivalents, gross unrealized losses	0	0
Cash equivalents, estimated fair value	139,330	74,004
Commercial paper
Debt Securities, Available-for-Sale [Line Items]
Cash equivalents, amortized cost	20,932	9,987
Cash equivalents, gross unrealized gains	0	0
Cash equivalents, gross unrealized losses	0	0
Cash equivalents, estimated fair value	$ 20,932	$ 9,987