Income Taxes - Components of Net Deferred Tax Assets (Details) - USD ($) $ in Thousands	Dec. 31, 2024	Dec. 31, 2023
Deferred tax assets:
Net operating losses	$ 78,213	$ 67,569
Tax credit carryforwards	11,816	10,689
Derivative	1,248	1,319
Stock based compensation	3,452	3,204
Reserves and accruals	1,181	1,156
Capitalized research expenditures	31,593	23,423
License fees	13,044	13,555
Operating lease liability	3,844	3,996
Deferred revenue		2,027
Other	208	183
Total gross deferred tax assets before valuation allowance	144,599	127,121
Less: valuation allowance	(140,461)	(119,504)
Total deferred tax assets	4,138	7,617
Deferred tax liabilities:
Operating lease ROU assets	(3,508)	(3,459)
Intangibles	(630)	(6,322)
Total deferred tax liabilities	$ (4,138)	(9,781)
Net deferred tax liabilities		$ (2,164)