Inventory

3 Months Ended

Mar. 31, 2018

Inventory Disclosure [Abstract]

Inventory

Inventory

Inventory consisted of the following:

(in thousands)	March 31, 2018		December 31, 2017
Raw materials	$	11,178	$	10,447
Work in process	10,310		5,509
Finished goods	10,598		10,124
Total inventory	$	32,086	$	26,080

As of March 31, 2018 and December 31, 2017, the Company had $0.5 million and $1.1 million, respectively, of inventory classified within other long-term assets, which represent raw materials not expected to be used by the Company during the next twelve months.