Quarterly report pursuant to Section 13 or 15(d)

Inventories - Schedule of Inventories (Details)

v3.21.1
Inventories - Schedule of Inventories (Details) - USD ($)
$ in Thousands
Mar. 31, 2021
Dec. 31, 2020
Inventory Disclosure [Abstract]    
Raw materials $ 255,699 $ 241,095
Work-in-process 34,073 41,950
Total 289,772 283,045
Safe harbor program within raw materials $ 85,300 $ 73,000