Inventories

12 Months Ended

Dec. 31, 2020

Inventory Disclosure [Abstract]

Inventories

13. Inventories

As of December 31, 2020 and 2019, inventories consisted of the following:

(in thousands)	December 31, 2020		December 31, 2019
Raw materials	$	57,789	$	52,960
Work in process	40,416		31,744
Finished goods	12,273		10,445
Total inventories	$	110,478	$	95,149