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Income Taxes - Schedule of Deferred Tax Assets (Details) - USD ($)
$ in Thousands
Dec. 31, 2023
Dec. 31, 2022
Deferred tax assets:    
Net operating loss carryforwards $ 127,961 $ 111,709
Accruals, reserve and other 1,760 2,053
Tax credit carryforwards 24,702 21,439
Stock-based compensation 7,305 10,705
Property and equipment 0 279
Intangibles 11 1,562
Lease obligation 17,708 26,241
Capital losses 9,850 9,850
Section 174 R&D capitalization 29,455 23,697
Total deferred tax assets before valuation allowance 218,752 207,535
Valuation allowance (205,103) (188,141)
Total deferred tax assets 13,649 19,394
Deferred tax liabilities:    
Right-of-use assets (12,335) (19,394)
Property and equipment (1,314) 0
Total deferred tax liabilities (13,649) (19,394)
Net deferred tax assets $ 0 $ 0