Income Taxes - Schedule of Income Tax (Benefit) Expense Reconciliation (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022
Income Tax Disclosure [Abstract]
Benefit at the federal rate	$ (40,015)	$ (35,472)
Foreign tax rate differential	(15,783)	2,177
State taxes, net of federal benefit	(9,514)	(1,603)
Change in valuation allowance	98,714	35,406
Intercompany note impairment	(34,615)
Tax credits	(5,928)	(6,992)
Officer's compensation	177	695
Stock compensation	4,564	4,637
Impairment of intellectual property	3,003
Permanent differences	79	(182)
Change in state tax law	384
Other	(1,192)	1,069
Total income tax benefit	$ (126)	$ (265)
Benefit at the federal rate	21.00%	21.00%
Foreign tax rate differential	8.30%	(1.30%)
State taxes, net of federal benefit	5.00%	0.90%
Change in valuation allowance	(51.80%)	(21.00%)
Intercompany note impairment	18.20%
Tax credits	3.10%	4.10%
Officer's compensation	(0.10%)	(0.40%)
Stock compensation	(2.40%)	(2.70%)
Impairment of intellectual property	(1.60%)
Permanent differences	0.00%	0.10%
Change in state tax law	(0.20%)
Other	0.60%	(0.60%)
Total income tax (benefit) expense	0.10%	0.10%