Inventories (Tables)

12 Months Ended

Dec. 31, 2019

Inventory Disclosure [Abstract]

Summary of Inventories

Inventories are comprised of the following amounts:

	As of December 31,
	2019		2018
Raw materials	$	49,135	$	52,930
Work in process	43,456		40,888
Finished goods	26,131		27,107
Total inventories	$	118,722	$	120,925