Income Taxes - Carryforwards (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023
Income Taxes
Increase in valuation allowance	$ (54,749)	$ 27,629	$ (34,617)
Net deferred tax liability	1,613	1,613
Income tax benefit	0	$ 0	$ 0
Federal
Income Taxes
Increase in valuation allowance	49,000
Net operating loss carryforwards	842,900
Federal NOL carryforwards	758,700
Tax credit carryforwards	48,700
Federal | R&D credit
Income Taxes
Net operating loss carryforwards	31,600
State
Income Taxes
Increase in valuation allowance	5,700
Net operating loss carryforwards	1,000,000
State | R&D credit
Income Taxes
Net operating loss carryforwards	$ 7,500