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Inventories - Inventories (Detail) - USD ($)
$ in Thousands
Dec. 31, 2020
Dec. 31, 2019
Inventory Disclosure [Abstract]    
Raw materials $ 26,800 $ 27,285
Work-in-process 4,780 5,503
Finished goods 29,250 27,473
Inventories $ 60,830 $ 60,261