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Inventories - Summary of Inventories (Detail) - USD ($)
$ in Thousands
Dec. 31, 2020
Dec. 31, 2019
Disclosure Of Inventories [Line Items]    
Inventories $ 96,371 $ 85,187
Gross carrying amount [Member]    
Disclosure Of Inventories [Line Items]    
Raw materials and supplies 23,490 18,578
Work in progress 17,992 18,593
Finished goods $ 54,889 $ 48,016