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Income Taxes - Schedule of Reconciliation of Income Taxes Computed by Applying Statutory Federal Income Tax Rate (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Income Tax Disclosure [Abstract]
Income tax expense (benefit) at statutory rates	$ (67,683)	$ (44,566)	$ (36,539)
State income tax, net of federal benefit	(8,170)	(5,882)	(11,821)
Permanent items	66	51	1
Reserve for uncertain tax positions	10,572	5,993	2,583
Research and development tax credits	(42,279)	(24,054)	(9,983)
Valuation allowance	98,813	61,332	54,093
Stock-based compensation	(15,264)	3,331	492
Section 162(m) disallowance	20,604	291	1,077
Rate adjustment	2,766	2,526	(5)
Other	575	978	102
Income tax expense (benefit)	$ 0	$ 0	$ 0

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