Quarterly report pursuant to Section 13 or 15(d)

Accrued Expenses (Detail)

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Accrued Expenses (Detail) - USD ($)
$ in Thousands
Mar. 31, 2021
Dec. 31, 2020
Accrued Liabilities Current [Abstract]    
External research and preclinical development $ 6,367 $ 4,702
Employee compensation and benefits 2,180 5,715
Professional fees 503 602
Facilities and other 77 65
Total accrued expenses $ 9,127 $ 11,084