Inventory

6 Months Ended

Jun. 30, 2018

Inventory Disclosure [Abstract]

Inventory

Inventory

Inventory consisted of the following:

(in thousands)	June 30, 2018		December 31, 2017
Raw materials	$	10,631	$	10,447
Work in process	7,984		5,509
Finished goods	12,859		10,124
Total inventory	$	31,474	$	26,080

As of June 30, 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.