Quarterly report pursuant to Section 13 or 15(d)

Inventories - Summary of Inventories (Detail)

v3.21.1
Inventories - Summary of Inventories (Detail) - USD ($)
$ in Thousands
Mar. 31, 2021
Dec. 31, 2020
Inventory Disclosure [Abstract]    
Supplies $ 4,816 $ 5,010
Raw materials 7,150 7,047
Work in process 6,925 5,710
Finished goods 7,283 7,684
Total $ 26,174 $ 25,451