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Income Taxes - Significant Components of Deferred Income Taxes (Detail) - USD ($) $ in Thousands | Dec. 31, 2021 | Dec. 31, 2020
--- | --- | ---
Deferred tax assets: |  |
Net operating loss carryforwards | $ 84,026 | $ 74,876
Deferred revenue | 4,270 | 150
Lease liability | 722 | 806
Stock-based compensation | 7,822 | 6,847
Tax credits | 5,446 | 4,503
Other | 3,005 | 2,514
Total deferred tax assets | 105,291 | 89,696
Deferred tax liabilities: |  |
Intangible assets | 5,963 | 6,087
Right-of-use assets | 615 | 713
Total deferred tax liabilities | 6,578 | 6,800
Deferred tax assets, net | 98,713 | 82,896
Valuation allowance | 98,713 | 82,896
Total deferred tax liability | $ 0 | $ 0

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