Quarterly report pursuant to Section 13 or 15(d)

Inventories - Summary of Inventories (Detail)

v3.21.2
Inventories - Summary of Inventories (Detail) - USD ($)
$ in Thousands
Jun. 30, 2021
Dec. 31, 2020
Inventory Disclosure [Abstract]    
Supplies $ 5,716 $ 5,010
Raw materials 8,658 7,047
Work in process 7,029 5,710
Finished goods 6,253 7,684
Total $ 27,656 $ 25,451