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Other Financial Statement Information - Inventories - Net (Detail) - USD ($)
$ in Thousands
Jun. 30, 2020
Dec. 31, 2019
Inventory Disclosure [Abstract]    
Raw materials $ 50,155 $ 49,729
Work-in-process 8,910 9,352
Finished Goods 44,559 45,760
Inventory, gross 103,624 104,841
Excess of current cost over LIFO cost (4,863) (4,667)
Noncurrent portion of inventory (3,307) (4,456)
Inventories - net $ 95,454 $ 95,718