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Schedule of Other Accrued Liabilities (Detail) - USD ($) $ in Thousands | Dec. 31, 2019 | Dec. 31, 2018
--- | --- | ---
Payables And Accruals [Abstract] |  |
Manufacturing | $ 4,320 | $ 1,012
Professional and consulting services | 2,026 | 597
Clinical | 435 | 234
Other | 250 | 200
Total other accrued liabilities | $ 7,031 | $ 2,043

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