Balance Sheet Components - Summary of Marketable Securities (Details) - USD ($) $ in Thousands	Sep. 30, 2024	Dec. 31, 2023
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	$ 61,411	$ 96,839
Unrealized Gain	52	15
Unrealized Loss	0	(19)
Marketable securities	61,463	96,835
Commercial paper
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	41,474	50,975
Unrealized Gain	46	3
Unrealized Loss	0	(16)
Marketable securities	41,520	50,962
Agency debt securities
Debt Securities, Available-for-sale [Line Items]
Amortized Cost		2,997
Unrealized Gain		0
Unrealized Loss		(2)
Marketable securities		2,995
U.S. Treasury and government debt securities
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	19,937	42,867
Unrealized Gain	6	12
Unrealized Loss	0	(1)
Marketable securities	$ 19,943	$ 42,878