Annual report pursuant to Section 13 and 15(d)

Inventories - Summary of Inventories (Detail)

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Inventories - Summary of Inventories (Detail) - USD ($)
$ in Thousands
Dec. 31, 2021
Dec. 31, 2020
Inventory Disclosure [Abstract]    
Supplies $ 6,188 $ 5,010
Raw materials 5,641 7,047
Work in process 11,219 5,710
Finished goods 7,399 7,684
Total $ 30,447 $ 25,451