Income Taxes - Schedule of Deferred Tax Assets (Details) - USD ($) $ in Thousands	Dec. 31, 2024	Dec. 31, 2023
Deferred tax assets:
Net operating loss carryforward	$ 176,298	$ 133,141
Tax credit carryforward	37,611	22,409
Capital loss carryforward	14,705	14,368
Accrued liabilities and allowances	3,818	3,143
Deferred revenue	936	793
Property and equipment	10,551	0
Amortization	5,582	5,243
Capitalized research and development	82,389	51,159
Investment basis difference	7,820	4,104
Lease liability	16,486	17,284
Stock-based compensation	10,036	11,244
Other	125	470
Gross deferred tax assets	366,357	263,358
Valuation allowance	(359,440)	(248,420)
Deferred tax assets, net of valuation allowance	6,917	14,938
Deferred tax liabilities:
Operating lease right-of-use assets	(6,917)	(10,853)
Property and equipment	0	(4,085)
Deferred tax liabilities	(6,917)	(14,938)
Net deferred tax assets	$ 0	$ 0