Inventories (Tables)

3 Months Ended

Mar. 31, 2016

Inventory Disclosure [Abstract]

Schedule of Inventories

As of March 31, 2016 and December 31, 2015, inventories consisted of the following:

(in thousands)	March 31, 2016	December 31, 2015
Raw materials	$26,824	$27,636
Work in process	46,884	41,823
Finished goods	36,648	36,947
Total inventories	$110,356	$106,406