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	Sep. 30, 2025	Dec. 31, 2024
Debt Securities, Available-for-Sale [Line Items]
Cash equivalents, amortized cost	$ 63,176	$ 87,734
Cash equivalents, gross unrealized gains	0	6
Cash equivalents, gross unrealized losses	0	0
Cash equivalents, estimated fair value	63,176	87,740
Marketable securities, amortized cost	420,510	513,507
Marketable securities, gross unrealized gains	829	651
Marketable securities, gross unrealized losses	(38)	(493)
Marketable securities, estimated fair value	421,301	513,665
Money market funds
Debt Securities, Available-for-Sale [Line Items]
Cash equivalents, amortized cost	63,176	65,902
Cash equivalents, gross unrealized gains	0	0
Cash equivalents, gross unrealized losses	0	0
Cash equivalents, estimated fair value	63,176	65,902
Commercial paper
Debt Securities, Available-for-Sale [Line Items]
Cash equivalents, amortized cost		21,832
Cash equivalents, gross unrealized gains		6
Cash equivalents, gross unrealized losses		0
Cash equivalents, estimated fair value		21,838
Marketable securities, amortized cost	61,068	143,265
Marketable securities, gross unrealized gains	17	104
Marketable securities, gross unrealized losses	0	(77)
Marketable securities, estimated fair value	61,085	143,292
Corporate bonds
Debt Securities, Available-for-Sale [Line Items]
Marketable securities, amortized cost	63,556	56,471
Marketable securities, gross unrealized gains	76	25
Marketable securities, gross unrealized losses	(5)	(48)
Marketable securities, estimated fair value	63,627	56,448
U.S. government treasury securities
Debt Securities, Available-for-Sale [Line Items]
Marketable securities, amortized cost	231,032	227,155
Marketable securities, gross unrealized gains	672	385
Marketable securities, gross unrealized losses	(29)	(296)
Marketable securities, estimated fair value	231,675	227,244
U.S. government agency securities
Debt Securities, Available-for-Sale [Line Items]
Marketable securities, amortized cost	64,854	86,616
Marketable securities, gross unrealized gains	64	137
Marketable securities, gross unrealized losses	(4)	(72)
Marketable securities, estimated fair value	$ 64,914	$ 86,681