Income Taxes - Components of Net Deferred Tax Assets (Details) - USD ($) $ in Thousands	Dec. 31, 2023	Dec. 31, 2022
Deferred tax assets:
Net operating losses	$ 67,569	$ 13,108
Tax credit carryforwards	10,689	3,674
Derivative	1,319	1,455
Stock based compensation	3,204	2,645
Reserves and accruals	1,156	1,105
Capitalized research expenditures	23,423	20,059
License fees	13,555	14,235
Operating lease liability	3,996	5,107
Deferred revenue	2,027
Intangibles		69
Other	183	29
Total gross deferred tax assets before valuation allowance	127,121	61,486
Less: valuation allowance	(119,504)	(57,812)
Total deferred tax assets	7,617	3,674
Deferred tax liabilities:
Operating lease ROU assets	(3,459)	(3,674)
Intangibles	(6,322)
Total deferred tax liabilities	(9,781)	$ (3,674)
Net deferred tax liabilities	$ (2,164)