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Inventory - Schedule of Inventory (Detail) - USD ($)
$ in Thousands
Dec. 31, 2019
Dec. 31, 2018
Inventory Disclosure [Abstract]    
Raw materials $ 19,455 $ 14,142
Work in process 12,031 8,590
Finished goods 45,283 35,357
Total inventory, gross 76,769 58,089
Inventory cost adjustment   (287)
Inventory $ 76,769 $ 57,802