Inventories (Tables)

9 Months Ended

Sep. 30, 2016

Inventory Disclosure [Abstract]

Schedule of Inventories

As of September 30, 2016 and December 31, 2015, inventories consisted of the following:

(in thousands)	September 30, 2016	December 31, 2015
Raw materials	$37,278	$27,636
Work in process	59,351	41,823
Finished goods	42,059	36,947
Total inventories	$138,688	$106,406