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Balance Sheet Information - Summary of Inventories, Net (Detail) - USD ($)
$ in Thousands
Mar. 31, 2020
Dec. 31, 2019
Inventory Net [Abstract]    
Raw materials $ 6,199 $ 6,502
Work-in-process 1,254 913
Finished goods 3,680 4,520
Inventories, net $ 11,133 $ 11,935