Income Taxes - Deferred Tax Assets and Liabilities (Details) - USD ($) $ in Thousands	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Deferred Tax Liabilities
Unrealized gains on investments	$ 117	$ 117	$ 0
Other deferred tax liabilities	100	0	0
Total Deferred Tax Liabilities	217	117	0
Deferred Tax Assets
Charitable contributions	37	37	45
Accrued expenses	8,082	3,857	2,398
Intangibles	401	503	589
Gross to net accruals	167	0	0
Stock compensation	16,342	33,976	27,226
Property, plant & equipment	172	95	106
Unrealized loss on investment	0	0	8
Net operating losses	214,427	121,552	68,305
Capitalized R&D	200,199	175,145	137,328
R&D credit	69,201	48,074	35,103
Total deferred tax assets before valuation allowance	509,028	383,239	271,108
Valuation allowance	(508,811)	(383,122)	(271,108)
Total deferred tax assets	217	117	0
Net deferred tax assets	$ 0	$ 0	$ 0