Inventories (Tables)

3 Months Ended

Mar. 31, 2016

Inventories

Inventories consist of the following:

	As of		As of
	March 31, 2016		December 31, 2015
Raw materials	$	28,548	$	28,190
Finished goods		20,066		17,381
Inventories, net	$	48,614	$	45,571
Service and demonstration inventory, net	$	34,849	$	33,709