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Other Financial Statement Information - Inventories - Net (Detail) - USD ($)
$ in Thousands
Dec. 31, 2019
Dec. 31, 2018
Inventory Disclosure [Abstract]    
Raw materials $ 49,729 $ 43,041
Work-in-process 9,352 8,818
Finished products 45,760 42,163
Inventory, gross 104,841 94,022
Excess of current cost over LIFO cost (4,667) (4,474)
Noncurrent portion of inventory (4,456) (4,289)
Inventories - net $ 95,718 $ 85,259