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Inventories, Net - Schedule of Inventories, Net (Detail) - USD ($)
$ in Thousands
Jun. 30, 2021
Dec. 31, 2020
Inventory Disclosure [Abstract]    
Raw materials $ 4,410 $ 3,220
Work in process 12,404 11,668
Finished products 3,134 3,449
Total $ 19,948 $ 18,337