Inventory

Inventory consisted of the following:



(in thousands)	September 30, 2018		December 31, 2017
Raw materials	$	11,896	$	10,447
Work in process	7,168		5,509
Finished goods	15,508		10,124
Total inventory	$	34,572	$	26,080

As of December 31, 2017, the Company had $1.1 million 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. As of September 30, 2018, the Company had no inventory classified within other long-term assets.