Balance Sheet Details - Schedule of Accrued and Other Current Liabilities (Details) - USD ($) $ in Thousands		Sep. 30, 2025	Dec. 31, 2024
Payables and Accruals [Abstract]
Accrued compensation		$ 6,807	$ 8,544
Operating lease liabilities		$ 6,900	$ 7,696
Operating Lease, Liability, Current, Statement of Financial Position [Extensible Enumeration]		Total accrued and other current liabilities	Total accrued and other current liabilities
Loans—current portion (Note 6)		$ 1,473	$ 1,669
Market Development Fees received from Tempus (Note 8)		3,500	1,400
Employee ESPP contributions		737	301
Other current liabilities		4,135	2,019
Total accrued and other current liabilities	[1]	$ 23,552	$ 21,629

[1] Includes related party liabilities of $4.6 million and $1.7 million as of September 30, 2025 and December 31, 2024, respectively.