Cash Equivalents and Marketable Securities - Estimated Fair Value of Cash Equivalents and Marketable Securities and the Gross Unrealized Gains and Losses (Details) - USD ($) $ in Thousands	Mar. 31, 2025	Dec. 31, 2024
Debt Securities, Available-for-Sale [Line Items]
Cash equivalents, amortized cost	$ 46,800	$ 87,734
Cash equivalents, gross unrealized gains	0	6
Cash equivalents, gross unrealized losses	0	0
Cash equivalents, estimated fair value	46,800	87,740
Marketable securities, amortized cost	515,681	513,507
Marketable securities, gross unrealized gains	807	651
Marketable securities, gross unrealized losses	(161)	(493)
Marketable securities, estimated fair value	516,327	513,665
Money market funds
Debt Securities, Available-for-Sale [Line Items]
Cash equivalents, amortized cost	46,800	65,902
Cash equivalents, gross unrealized gains	0	0
Cash equivalents, gross unrealized losses	0	0
Cash equivalents, estimated fair value	46,800	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	147,448	143,265
Marketable securities, gross unrealized gains	26	104
Marketable securities, gross unrealized losses	(24)	(77)
Marketable securities, estimated fair value	147,450	143,292
Corporate bonds
Debt Securities, Available-for-Sale [Line Items]
Marketable securities, amortized cost	72,618	56,471
Marketable securities, gross unrealized gains	49	25
Marketable securities, gross unrealized losses	(20)	(48)
Marketable securities, estimated fair value	72,647	56,448
U.S. government treasury securities
Debt Securities, Available-for-Sale [Line Items]
Marketable securities, amortized cost	222,942	227,155
Marketable securities, gross unrealized gains	638	385
Marketable securities, gross unrealized losses	(80)	(296)
Marketable securities, estimated fair value	223,500	227,244
U.S. government agency securities
Debt Securities, Available-for-Sale [Line Items]
Marketable securities, amortized cost	72,673	86,616
Marketable securities, gross unrealized gains	94	137
Marketable securities, gross unrealized losses	(37)	(72)
Marketable securities, estimated fair value	$ 72,730	$ 86,681