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Component of Deferred Tax Assets and Liabilities (Detail) - USD ($) $ in Thousands | Dec. 31, 2022 | Dec. 31, 2021
--- | --- | ---
Deferred tax assets: |  |
Net operating loss carryforwards | $ 113,228 | $ 155,503
Research credit carryforwards | 33,444 | 12,870
Section 174 capitalization | 15,308 |
Lease Liability | 9,530 | 8,515
Stock Compensation | 7,780 | 5,798
Accruals and reserves | 9,089 | 5,792
Other | 337 | 212
Total deferred tax assets | 188,716 | 188,690
Less valuation allowance | (178,920) | (179,253)
Net deferred tax assets | 9,796 | 9,437
Deferred tax liabilities: |  |
Fixed assets | (2,916) | (3,283)
Operating lease right-of-use assets | (6,785) | (6,124)
Other | (95) | (30)
Total deferred tax liabilities | (9,796) | (9,437)
Net deferred tax assets | $ 0 | $ 0

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