Inventories - (Tables)

3 Months Ended

Mar. 31, 2020

Inventory Disclosure [Abstract]

Components of Inventories

Inventories consisted of the following (in thousands): 

	March 31, 2020		December 31, 2019
Raw materials	$	13,901	$	13,595
Work in process	37,689		36,658
Finished goods	34,020		28,355
Total inventories	$	85,610	$	78,608